Click Here -> Please Consider Making a PayPal Contribution to the FordSix Forum!
2019 Contributors:
NJwpod, 1strodeo, mightynorseman, maxtrux, 6d7coupe, broncr, Phase3, 68Flareside240, bmbm40,
mustang6, WorldChampGramp, justintendo, BigBlue94, ags290, motorsickle1130, Rooster, ousooner919, ethanperry
rzcrisis, DoctorC, jamyers, Motorboy, fastpat, Silverback280, chad


<<< New Site Update >>>

Offy tri-power stalls when in gear

Moderator: Mod Squad

User avatar
Econoline
Registered User
Posts: 1293
Joined: Tue Nov 12, 2013 8:37 pm
Location: Anacortes, WA

Re: Offy tri-power stalls when in gear

Post #51 by Econoline » Tue Dec 11, 2018 10:13 pm

thegreyghost wrote:
bubba22349 wrote:Thegrayghost, that is excellent news 680 RPM is at least close to the ball park and you can work from there. Still work at doing the first steps of plug gap, the correct dwell, and base timing before working on the carb settings. Good luck :thumbup: :nod:


These were taken a couple days ago before I realized the carb linkage was hanging up. Probably more like 1000 rpm.

https://drive.google.com/file/d/1hx9uMHOw_rZOxy1RgXxSBBfYlcmWnuOS/view?usp=sharing
https://drive.google.com/file/d/1iCUtnjzOgkvAkf5eLI5n5yzXULIDEUOU/view?usp=sharing

Hopefully these links work.


The links are working. Yeah it sounds like 1000+ to me. It sounds pretty smooth, sounds like the ignition system is working pretty well, no big misses. Not a horrible place to start. I'd like to see a video of it idling around 650, or as low as it idles nice, and you putting it into gear w/ your foot on the brake and holding it still. After you get the timing and the dwell set.

If you have the throttle plates all the way closed on the outer carbs at idle, w/their mixture screws turned all the way in and with a smooth idle, can you then kill the engine by turning the mixture screw in on the center carb? Doing that's making sure there aren't any vacuum leaks and the idle circuit is working right on that carb. If you can pass that you should be able to tune it up real nice.
It ain't gonna fix itself

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #52 by bubba22349 » Wed Dec 12, 2018 12:41 am

:beer: sounds great and is quite smooth! X2 now if you can get it idling down smooth at 600 RPM. :nod: :thumbup:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #53 by thegreyghost » Wed Dec 12, 2018 3:03 pm

Econoline wrote:
thegreyghost wrote:
bubba22349 wrote:Thegrayghost, that is excellent news 680 RPM is at least close to the ball park and you can work from there. Still work at doing the first steps of plug gap, the correct dwell, and base timing before working on the carb settings. Good luck :thumbup: :nod:


These were taken a couple days ago before I realized the carb linkage was hanging up. Probably more like 1000 rpm.

https://drive.google.com/file/d/1hx9uMHOw_rZOxy1RgXxSBBfYlcmWnuOS/view?usp=sharing
https://drive.google.com/file/d/1iCUtnjzOgkvAkf5eLI5n5yzXULIDEUOU/view?usp=sharing

Hopefully these links work.


The links are working. Yeah it sounds like 1000+ to me. It sounds pretty smooth, sounds like the ignition system is working pretty well, no big misses. Not a horrible place to start. I'd like to see a video of it idling around 650, or as low as it idles nice, and you putting it into gear w/ your foot on the brake and holding it still. After you get the timing and the dwell set.

If you have the throttle plates all the way closed on the outer carbs at idle, w/their mixture screws turned all the way in and with a smooth idle, can you then kill the engine by turning the mixture screw in on the center carb? Doing that's making sure there aren't any vacuum leaks and the idle circuit is working right on that carb. If you can pass that you should be able to tune it up real nice.



Had a little time to play around today.

Got a video of it showing the tach at 600 and the dwell setting - about 27.
Got another video of it at 800 and then the dwell - about 34.

Not sure why there's that big of a difference, but I haven't measure the points yet.
I have both outer carbs disconnected and confirmed that I can get it to stall by turning the mixture screws in. Right now all three are 1.5 turns out.

Took if for a short drive - surges with the throttle. Doesn't have much get up and go yet.

videos are rpm first, followed by dwell.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #54 by bubba22349 » Wed Dec 12, 2018 3:14 pm

thegreyghost wrote:
Econoline wrote:
thegreyghost wrote:
These were taken a couple days ago before I realized the carb linkage was hanging up. Probably more like 1000 rpm.

https://drive.google.com/file/d/1hx9uMHOw_rZOxy1RgXxSBBfYlcmWnuOS/view?usp=sharing
https://drive.google.com/file/d/1iCUtnjzOgkvAkf5eLI5n5yzXULIDEUOU/view?usp=sharing

Hopefully these links work.


The links are working. Yeah it sounds like 1000+ to me. It sounds pretty smooth, sounds like the ignition system is working pretty well, no big misses. Not a horrible place to start. I'd like to see a video of it idling around 650, or as low as it idles nice, and you putting it into gear w/ your foot on the brake and holding it still. After you get the timing and the dwell set.

If you have the throttle plates all the way closed on the outer carbs at idle, w/their mixture screws turned all the way in and with a smooth idle, can you then kill the engine by turning the mixture screw in on the center carb? Doing that's making sure there aren't any vacuum leaks and the idle circuit is working right on that carb. If you can pass that you should be able to tune it up real nice.



Had a little time to play around today.

Got a video of it showing the tach at 600 and the dwell setting - about 27.
Got another video of it at 800 and then the dwell - about 34.

Not sure why there's that big of a difference, but I haven't measure the points yet.
I have both outer carbs disconnected and confirmed that I can get it to stall by turning the mixture screws in. Right now all three are 1.5 turns out.

Took if for a short drive - surges with the throttle. Doesn't have much get up and go yet.

videos are rpm first, followed by dwell.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing


Videos aren't working. The dwell can change with higher RPM but usally it drops at higher RPMs. :hmmm: check to see if you have any slop or movement of the distribors center shaft. Check the points plate for movement too. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

ign set up

Post #55 by chad » Wed Dec 12, 2018 3:19 pm

both vids showed "Invalid Parameters"
Oh, OK not just me.

Now:
"dwn load an app, media player, convert, etc"
Thanks, I'll skip 4 now...
Last edited by chad on Wed Dec 12, 2018 4:51 pm, edited 1 time in total.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #56 by thegreyghost » Wed Dec 12, 2018 4:17 pm

well, let me try that again.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing

I may not have enabled "sharing" before I linked them.

I'll check the distributor shaft and plate and see if anything is loose.
Thanks.

Gene 64 2dr
Registered User
Posts: 177
Joined: Wed Nov 05, 2003 10:18 pm
Location: Tyngsboro, MA

Re: Offy tri-power stalls when in gear

Post #57 by Gene 64 2dr » Wed Dec 12, 2018 5:20 pm

When you say you have disconnected the outer carbs, do you mean you just disconnected the fuel lines or did you block them off? To run on just the center you need to put a plate between the carb and the adapter. This will isolate them.
65 Falcon Futura hardtop, FSD’s 250, T5, 4:11’s

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #58 by thegreyghost » Wed Dec 12, 2018 5:33 pm

Gene 64 2dr wrote:When you say you have disconnected the outer carbs, do you mean you just disconnected the fuel lines or did you block them off? To run on just the center you need to put a plate between the carb and the adapter. This will isolate them.


Actually, I only disconnected the linkage, throttle plates are closed and mixture screws are 1.5 turns out.

Should I still remove the outer two carbs, or was that just to help get the idle correct ?

Gene 64 2dr
Registered User
Posts: 177
Joined: Wed Nov 05, 2003 10:18 pm
Location: Tyngsboro, MA

Re: Offy tri-power stalls when in gear

Post #59 by Gene 64 2dr » Wed Dec 12, 2018 9:08 pm

Yes, to eliminate the outer two carbs what you need to do is to cut two plates to place under the two outer carbs. Only then will they be total out of the picture and you will be running on the center.
65 Falcon Futura hardtop, FSD’s 250, T5, 4:11’s

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

Re: Offy tri-power stalls when in gear

Post #60 by chad » Thu Dec 13, 2018 12:20 am

if U want just unscrew enuff to slide under a rubber or solid plate.
Use the carbs'n their nuts to hold in place (tight to block air infiltration).
I think this would allow U to keep frm tearing down the whole assembly.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #61 by thegreyghost » Thu Dec 13, 2018 7:25 am

So one obvious question comes to mind with this. If I can tune this with only one carb......you probably see where I'm going. With the cam, larger valves (I'm not positive but I think the valves were upsized ) and headers shouldn't I need more than one single 1940 Holley can provide? (I'm assuming stock jetting, but don't actually know)
I have some sheets of gasket material I should be able use for this.

I'll try to get a video of how the car acts before I do this just for comparison.

Gene 64 2dr
Registered User
Posts: 177
Joined: Wed Nov 05, 2003 10:18 pm
Location: Tyngsboro, MA

Re: Offy tri-power stalls when in gear

Post #62 by Gene 64 2dr » Thu Dec 13, 2018 8:37 am

You wouldn’t be tuning the engine with the one carb. You would be doing this as a way to diagnose where a problem may be. If it runs well on just the center and you don’t find any problems with vacuum leaks or timing issues then move on.
When your running on the one in the middle, and all is well, try each of the outer carbs in the center by themselves and check them out. It’s possible that you could have a bad carb that may need rebuilding.
65 Falcon Futura hardtop, FSD’s 250, T5, 4:11’s

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #63 by thegreyghost » Thu Dec 13, 2018 10:18 am

Gene 64 2dr wrote:You wouldn’t be tuning the engine with the one carb. You would be doing this as a way to diagnose where a problem may be. If it runs well on just the center and you don’t find any problems with vacuum leaks or timing issues then move on.
When your running on the one in the middle, and all is well, try each of the outer carbs in the center by themselves and check them out. It’s possible that you could have a bad carb that may need rebuilding.


That makes sense. Thanks for information.
If I'm going the route of swapping each one into the center position it sounds like I may be better off just removing the outer two at this point?

User avatar
woodbutcher
VIP Member
Posts: 2059
Joined: Tue Mar 21, 2006 10:14 pm
Location: LaFollette Tn.

Re: Offy tri-power stalls when in gear

Post #64 by woodbutcher » Thu Dec 13, 2018 12:03 pm

:D Like your Heathkit tester.A friend of mine that I went to school with built one when he was in high school.in 63 or 4.He is still using it today.He is one year younger than me.I`m 73.Trying to tune multipul carbs can be enough to make a feller want to pull his hair out if you`ve never done it before. I`ve seen experienced carb tuners just about have a nervous break down trying to get their setup tuned.But don`t give up.You`re getting there.
Good luck.Have fun.Be safe.
Leo
"People never lie so much as after a hunt,during a war,or before an election".
Otto von Bismarck

User avatar
powerband
FSP Moderator
Posts: 1968
Joined: Fri Nov 08, 2002 6:45 pm
Location: Mid Hudson Valley - \H/

Re: Offy tri-power stalls when in gear

Post #65 by powerband » Thu Dec 13, 2018 12:24 pm

If I'm going the route of swapping each one into the center position it sounds like I may be better off just removing the outer two at this point?

... yes you could remove them but the simple solution is to make two block-off plates to look like gaskets from thin metal and then temporarily place between under carb .

My original three carb Offy setup when first started, I found only ONE of the three 'rebuilt' carbs ran well alone - and it had been in front position. Tested individually, center carb bogged off idle and rear carb, I never got to run right . I have an inventory of questionable or experimental carbs for the Offy Tri-Power.



have fun

Image . Image

For a while, I built and ran a hi-rise plenum to sit on the three Offy port adapter and accept a big 2 Bbl for ease of tuning. It did run more consistently but ultimately wasn't any faster ...

Image
"Take time to stop and smell... The roadkill..."

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #66 by thegreyghost » Thu Dec 13, 2018 4:41 pm

Well, it looks like I now have something to do this weekend.

I have no idea how long these carbs have been sitting with or without gas in them, so seems like a good opportunity to take them off and open 'em up and see what's going on.

***With only one carb on the engine, what's the expectation ? How do I know what "good" looks like ?

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

tuning 1940 Holley

Post #67 by chad » Thu Dec 13, 2018 4:57 pm

that's a fine carb to run the car on (wuz designed to do so). There R better 1Vs tho, but do U wanna buy them right now ($300 - 1,050) ?
(I forgot if U need SCV, have LOM dizzy).

Block off the others well. Tune on that one, even drive it.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: tuning 1940 Holley

Post #68 by thegreyghost » Thu Dec 13, 2018 5:12 pm

chad wrote:that's a fine carb to run the car on (wuz designed to do so). There R better 1Vs tho, but do U wanna buy them right now ($300 - 1,050) ?
(I forgot if U need SCV, have LOM dizzy).

Block off the others well. Tune on that one, even drive it.


I can tell you that the ported openings are plugged and there doesn't seem to be anything where the SCV goes. It's not threaded and appears to be a blind hole. Option perhaps ?

Dizzy is a mechanical advance mallory dual point.

Thank you!

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #69 by bubba22349 » Thu Dec 13, 2018 5:21 pm

thegreyghost wrote:
Had a little time to play around today.

Got a video of it showing the tach at 600 and the dwell setting - about 27.
Got another video of it at 800 and then the dwell - about 34.

Not sure why there's that big of a difference, but I haven't measure the points yet.
I have both outer carbs disconnected and confirmed that I can get it to stall by turning the mixture screws in. Right now all three are 1.5 turns out.

Took if for a short drive - surges with the throttle. Doesn't have much get up and go yet.

videos are rpm first, followed by dwell.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing


:shock: :wow: it sounds like we are all just chasing our proberberal tails here or getting deep in the tall weeds!

Did you ever get the dwell set right yet or check if the distribor shaft moves sideways? IMOP these three items of tuning that I stated in my above post #36 need to be handled first before ever doing anything with the carb's. The above videos still don't work, but if you are able to get it to idle down too 600 RPM and stall the engine when turning the mixture screws in then the carb's idle circuits are working. By the way you certainly right it doesn't mater about the carb's having SCV or not to match with an old LOM system because in this case your distribtor is a duel point that only has a mechanical advance system i.e. No vaccum advance. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
B RON CO
VIP Member
Posts: 822
Joined: Tue Apr 05, 2016 7:02 pm
Location: Long Island, NY
Contact:

Re: Offy tri-power stalls when in gear

Post #70 by B RON CO » Thu Dec 13, 2018 5:27 pm

Hi, I stay focused on the ignition and distributor. The dwell should be steady. A varying dwell shows a worn distributor.
A low dwell number means the points are open too much. Set the gap or adjust the dwell one set of points at a time.
Figure out the ignition first or you are just waisting your time on the carbs.
Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #71 by thegreyghost » Thu Dec 13, 2018 10:41 pm

bubba22349 wrote:
thegreyghost wrote:
Had a little time to play around today.

Got a video of it showing the tach at 600 and the dwell setting - about 27.
Got another video of it at 800 and then the dwell - about 34.

Not sure why there's that big of a difference, but I haven't measure the points yet.
I have both outer carbs disconnected and confirmed that I can get it to stall by turning the mixture screws in. Right now all three are 1.5 turns out.

Took if for a short drive - surges with the throttle. Doesn't have much get up and go yet.

videos are rpm first, followed by dwell.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing


:shock: :wow: it sounds like we are all just chasing our proberberal tails here or getting deep in the tall weeds!

Did you ever get the dwell set right yet or check if the distribor shaft moves sideways? IMOP these three items of tuning that I stated in my above post #36 need to be handled first before ever doing anything with the carb's. The above videos still don't work, but if you are able to get it to idle down too 600 RPM and stall the engine when turning the mixture screws in then the carb's idle circuits are working. By the way you certainly right it doesn't mater about the carb's having SCV or not to match with an old LOM system because in this case your distribtor is a duel point that only has a mechanical advance system i.e. No vaccum advance. Good luck :thumbup: :nod:


I checked the shaft and the plate. I cannot find movement in either, but I agree the values I stated and stand by suggest differently. The shaft I'm fairly certain on. I poked around on the plate and couldn't see any movement, but I may be missing something. I'll recheck.
Spark plugs are set at 0.40 best I can tell.

I'll check the videos and repost tomorrow. Of course they work for me when I try them, so I need the feedback - thanks for letting me know.

I still need to measure the points gap on each set and will tackle that this weekend.

It might be a day or two but more info to come.

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #72 by thegreyghost » Fri Dec 14, 2018 8:12 am

I tried both links from a different computer not logged in and they worked.

Can someone confirm for me whether or not they can access them now?

Thanks.

User avatar
woodbutcher
VIP Member
Posts: 2059
Joined: Tue Mar 21, 2006 10:14 pm
Location: LaFollette Tn.

Re: Offy tri-power stalls when in gear

Post #73 by woodbutcher » Fri Dec 14, 2018 9:19 am

:hmmm: Works just fine for me this AM 12-14-18 at 9:17 local time.Worked fine yesterday,too.
Good luck.Have fun.Be safe.
Leo
"People never lie so much as after a hunt,during a war,or before an election".

Otto von Bismarck

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

Re: Offy tri-power stalls when in gear

Post #74 by chad » Fri Dec 14, 2018 12:45 pm

thegreyghost wrote:...Can someone confirm for me whether or not they can access them now?...

'S OK, no matter
and
when I click on the 'right pointing triangle' in the vid window (it gets 2 that point OK)
an error msg opens.
1) I have a mid '08 MacBook Pro (15 inch) running OS10.11.6 (El Capitan) w/Safari 11/1/2;
2) so like my vehicle it is an older model and may not meet today's standards.
:nono:
:lol:
:oops:
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #75 by bubba22349 » Fri Dec 14, 2018 3:38 pm

These are thefirst two videos from your other post before, I seen them and they used to work for me but now they don't.

https://drive.google.com/file/d/1hx9uMHOw_rZOxy1RgXxSBBfYlcmWnuOS/view?usp=sharing
https://drive.google.com/file/d/1iCUtnjzOgkvAkf5eLI5n5yzXULIDEUOU/view?usp=sharing

Second pair of videos couldn't get them to work on severial different tries.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing

Looking at the links can't see any reason why they shouldn't work maybe they only work when you are also logged on to this site? Don't know I just get an "invalid parameters" warning on all four of these video links. Not a Google user so not being logged on to their site might also have something to do with it too. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

Re: Offy tri-power stalls when in gear

Post #76 by chad » Fri Dec 14, 2018 5:00 pm

ditto
2X wha he ^^^ said
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #77 by thegreyghost » Fri Dec 14, 2018 5:18 pm

bubba22349 wrote:These are thefirst two videos from your other post before, I seen them and they used to work for me but now they don't.

https://drive.google.com/file/d/1hx9uMHOw_rZOxy1RgXxSBBfYlcmWnuOS/view?usp=sharing
https://drive.google.com/file/d/1iCUtnjzOgkvAkf5eLI5n5yzXULIDEUOU/view?usp=sharing

Second pair of videos couldn't get them to work on severial different tries.

https://drive.google.com/file/d/1eQ9IA1y6WARP9kZXpNcSU4E6TbnaUZLX/view?usp=sharing
https://drive.google.com/file/d/1JKrDGdhWNs6dETBhHzThKOu9d1iKNKoX/view?usp=sharing

Looking at the links can't see any reason why they shouldn't work maybe they only work when you are also logged on to this site? Don't know I just get an "invalid parameters" warning on all four of these video links. Not a Google user so not being logged on to their site might also have something to do with it too. Good luck :thumbup: :nod:

Alrighty. I'll see if I can find a better way to post. Tomorrow I should have points measurements, and I'm going to recheck the dampener to make sure it isn't moving.

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #78 by thegreyghost » Fri Dec 14, 2018 5:29 pm

chad wrote:ditto
2X wha he ^^^ said



Give these a try:
https://vimeo.com/306486069
https://vimeo.com/306486062

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

offy tri-power no longer stalls when put into gear

Post #79 by chad » Fri Dec 14, 2018 5:30 pm

right ign then carb
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
B RON CO
VIP Member
Posts: 822
Joined: Tue Apr 05, 2016 7:02 pm
Location: Long Island, NY
Contact:

Re: Offy tri-power stalls when in gear

Post #80 by B RON CO » Sat Dec 15, 2018 9:18 am

Hi, the videos of RPM worked here.
Work on the points and take a video of the meter, set on dwell, and raise the RPMS so you can see what the dwell meter does.
Hopefully the dwell will hold steady.
Old distributors have oil cups for lubrication, I wonder if your Mallory does.
Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #81 by thegreyghost » Sat Dec 15, 2018 12:02 pm

B RON CO wrote:Hi, the videos of RPM worked here.
Work on the points and take a video of the meter, set on dwell, and raise the RPMS so you can see what the dwell meter does.
Hopefully the dwell will hold steady.
Old distributors have oil cups for lubrication, I wonder if your Mallory does.
Good luck


O.K. so here's where I'm at.

Checked the points this morning and found them both to be set at about 0.015" - remember my dwell was at 34@850 and 27@600. Increased them both to 0.028"
Also noticed the condenser is cracked and probably no good at this point.
Here's my new numbers and videos:

Gap - 0.028
Idle - 800/805
Dwell - 27
Vac - 11"
Timing - 14 BTDC
videos of idle setting and dwell, dwell change with throttle, and one just of the engine running.

https://vimeo.com/306566190
https://vimeo.com/306567570
https://vimeo.com/306566072

Not sure where to go from here - I didn't notice any play in the shaft or movement of the plate. The connection from the coil was a little loose, but not bad. If I didn't mention if before, this dizzy was brand new when it was install on this engine. This car has never been driven since it was rebuilt. I wish I knew more about the rebuild, but details are hard to get.

Thanks for all the support!

User avatar
chad
Registered User
Posts: 4833
Joined: Sat Oct 24, 2009 9:51 am
Location: Lawrence Swamp, S. Amherst, MA

ign tune

Post #82 by chad » Sat Dec 15, 2018 12:09 pm

1st vid came thru (no X to look others, concert 2 perform).
May B cuz I'm on vimeo too? IDK, every thing on these puters is behind the scenes now, all automatic so can't tell.
points'n condenser all ways get replaced in pairs... 1 bad do other same X...
Nothing is 'known' in a new-2-U rig. must ck it all.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), 250, NV 3550 & DSII to B transplanted, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #83 by bubba22349 » Sat Dec 15, 2018 12:36 pm

thegreyghost wrote:
B RON CO wrote:Hi, the videos of RPM worked here.
Work on the points and take a video of the meter, set on dwell, and raise the RPMS so you can see what the dwell meter does.
Hopefully the dwell will hold steady.
Old distributors have oil cups for lubrication, I wonder if your Mallory does.
Good luck


O.K. so here's where I'm at.

Checked the points this morning and found them both to be set at about 0.015" - remember my dwell was at 34@850 and 27@600. Increased them both to 0.028"
Also noticed the condenser is cracked and probably no good at this point.
Here's my new numbers and videos:

Gap - 0.028
Idle - 800/805
Dwell - 27
Vac - 11"
Timing - 14 BTDC
videos of idle setting and dwell, dwell change with throttle, and one just of the engine running.

https://vimeo.com/306566190
https://vimeo.com/306567570
https://vimeo.com/306566072

Not sure where to go from here - I didn't notice any play in the shaft or movement of the plate. The connection from the coil was a little loose, but not bad. If I didn't mention if before, this dizzy was brand new when it was install on this engine. This car has never been driven since it was rebuilt. I wish I knew more about the rebuild, but details are hard to get.

Thanks for all the support!



Ok to recap we are looking for these settings

1. Spark plug gap setting of .034 or .035

2. Working on the duel point distribtor's will take some time to get right, the .028 point gap is only a baseline setting to get it runing. Work on one set of points at a time you will need a dwell of 29 degrees for each point set. You will likely need to narrow the point gaps of each set to get this. You can use a match book or bussness card placed between the other set of points to isolate it from the set of points your are working on. After you get each set to 29 degrees then take a reading with both points working, you are looking for the 34 to 37 degrees of dwell. If you get it within this range then you are good to go, if not then some more adjustments will need to be made let us know how you do. Make some notes for yiurself to refer too as this will speed up the process for the next time you need to tune it up.

3. Now check or reset the base timing to 12 - 14 degrees BTDC.

4. After getting these right you be ready for the carb's. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
B RON CO
VIP Member
Posts: 822
Joined: Tue Apr 05, 2016 7:02 pm
Location: Long Island, NY
Contact:

Re: Offy tri-power stalls when in gear

Post #84 by B RON CO » Sat Dec 15, 2018 1:01 pm

Hi, I can't think of any reason why opening up the points from .015 to .028 and you don't see a big change in the dwell angle reading! In post # 30 you have a dwell reading of 31.
That is a big adjustment.
Can it be the spring on the points sets are too weak and do not control the points from bouncing?
Just a guess. It does sound good. How is it on a drive?
Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #85 by thegreyghost » Sat Dec 15, 2018 1:43 pm

bubba22349 wrote:
thegreyghost wrote:
B RON CO wrote:Hi, the videos of RPM worked here.
Work on the points and take a video of the meter, set on dwell, and raise the RPMS so you can see what the dwell meter does.
Hopefully the dwell will hold steady.
Old distributors have oil cups for lubrication, I wonder if your Mallory does.
Good luck


O.K. so here's where I'm at.

Checked the points this morning and found them both to be set at about 0.015" - remember my dwell was at 34@850 and 27@600. Increased them both to 0.028"
Also noticed the condenser is cracked and probably no good at this point.
Here's my new numbers and videos:

Gap - 0.028
Idle - 800/805
Dwell - 27
Vac - 11"
Timing - 14 BTDC
videos of idle setting and dwell, dwell change with throttle, and one just of the engine running.

https://vimeo.com/306566190
https://vimeo.com/306567570
https://vimeo.com/306566072

Not sure where to go from here - I didn't notice any play in the shaft or movement of the plate. The connection from the coil was a little loose, but not bad. If I didn't mention if before, this dizzy was brand new when it was install on this engine. This car has never been driven since it was rebuilt. I wish I knew more about the rebuild, but details are hard to get.

Thanks for all the support!



Ok to recap we are looking for these settings

1. Spark plug gap setting of .034 or .035

2. Working on the duel point distribtor's will take some time to get right, the .028 point gap is only a baseline setting to get it runing. Work on one set of points at a time you will need a dwell of 29 degrees for each point set. You will likely need to narrow the point gaps of each set to get this. You can use a match book or bussness card placed between the other set of points to isolate it from the set of points your are working on. After you get each set to 29 degrees then take a reading with both points working, you are looking for the 34 to 37 degrees of dwell. If you get it within this range then you are good to go, if not then some more adjustments will need to be made let us know how you do. Make some notes for yiurself to refer too as this will speed up the process for the next time you need to tune it up.

3. Now check or reset the base timing to 12 - 14 degrees BTDC.

4. After getting these right you be ready for the carb's. Good luck :thumbup: :nod:


Alright.

1. Set all the plugs to 0.35 - Done.

2. Set the primary set to 0.020" (Thanks for the cardboard trick - that saved me a ton of time!) -dwell was 26. re-adjusted to 0.015" and came out around 29 - Done. Set secondary set to 0.015" to start and ended up around 29 as well. Worth noting that running on this set was more erratic than the other set. hunted around a little and dwell increased with throttle.
Running on both sets:
Rpm - ~850
Dwell - 36
timing - 12 BTDC
vac - 10"
https://vimeo.com/306577548

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #86 by thegreyghost » Sat Dec 15, 2018 1:48 pm

B RON CO wrote:Hi, I can't think of any reason why opening up the points from .015 to .028 and you don't see a big change in the dwell angle reading! In post # 30 you have a dwell reading of 31.
That is a big adjustment.
Can it be the spring on the points sets are too weak and do not control the points from bouncing?
Just a guess. It does sound good. How is it on a drive?
Good luck

Possible - I know this dizzy either came with or has available different springs for different curves. Not sure yet which ones are on it.

On a drive it is a complete dog. Throttle makes the engine tone deeper, but not much happens.

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #87 by bubba22349 » Sat Dec 15, 2018 2:03 pm

:beer: excellent now your ready to set the carb idle mixture. Starting off try to bring down the engines curb idle rpm (throdle blade opening) to close to the 650 rpm range also check that the choke blade is fully open too. Now on the center carb set the idle mixture screw to its highest RPM then turn the mixture screw in 1/4 turn this will be your lean best idle setting. Repeate this on the front and back carb's. Reset the curb idle RPM to 650 in drive with the parking brake set. Check to see what kind of a shot of fuel you get from the accelerator pumps (engine off looking down the carb throat). Test you should be able to take off from a stop stabbing the gas without any stumbling.

Yes these Distribitors have a kit to adjust the advance system it's has a plastic pin used to measure the amount of advance. If you have a good timing light and extra timing marks on your dampner of 50 to 60 degrees (timing tape will work for this too) you can check out the advance curve you have and total advance. :hmmm: On it being a dog, I wonder if the cam was even degreed during its rebuild? Good luck :thumbup: :nod: Edited
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
B RON CO
VIP Member
Posts: 822
Joined: Tue Apr 05, 2016 7:02 pm
Location: Long Island, NY
Contact:

Re: Offy tri-power stalls when in gear

Post #88 by B RON CO » Sat Dec 15, 2018 2:05 pm

Hi, it sounds like you still have work to do.
The little springs you see are to adjust the timing curve.
The flat blade on the points is a spring to hold them closed. Pull the points open with your finger and it should have plenty of tension to return closed.
Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #89 by thegreyghost » Sat Dec 15, 2018 2:31 pm

bubba22349 wrote::beer: excellent now your ready to set the carb idle mixture. Starting off try to bring down the engines curb idle rpm (throdle blade opening) to close to the 650 rpm range also check that the choke blade is fully open too. Now on the center carb set the idle mixture screw to its highest RPM then turn the mixture screw in 1/4 turn this will be your lean best idle setting. Repeate this on the fron ran back carb's. Reset the curb idle RPM to 650 in drive with the parking brake set. Check to see what kind of a shot of fuel you get from the accelerator pumps (engine off looking down the carb throat).

Yes these Distribitors have a kit to adjust the advance system it's has a plastic pin used to measure the amount of advance. :hmmm: On it being a dog, I wonder if the cam was even degreed during its rebuild? Good luck :thumbup: :nod:


Ended up with curb idle around 950-980 to get 650 in gear.
https://vimeo.com/306582172
Shot looks O.K., but a little interrupted.
https://vimeo.com/306582032

*** the springs for points seem fine, miss-understood what B RON CO was asking.***

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #90 by bubba22349 » Sat Dec 15, 2018 2:50 pm

Good on Idle setting. :nod:

To Test it you should be able to take off from a stop stabbing the gas without any stumbling. Yeah looks like that pump shot is really weak you probally should pick up a new accelerator pump (NAPA used to have them separate) or you could get a carb kit, spray can Barrymen's carb cleaner and then replace with the new pump Diafram or better still maybe rebuild that center carb compleately.

On the advance If you have a good timing light and extra timing marks on your dampner of 50 to 60 degrees (timing tape will work for this too) you can check out the advance curve you have and total advance. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #91 by thegreyghost » Sat Dec 15, 2018 3:01 pm

bubba22349 wrote:Good on Idle setting. :nod:

To Test it you should be able to take off from a stop stabbing the gas without any stumbling. Yeah looks like that pump shot is really weak you probally should pick up a new accelerator pump (NAPA used to have them separate) or you could get a carb kit, spray can Barrymen's carb cleaner and then replace with the new pump Diafram or better still maybe rebuild that center carb compleately.

On the advance If you have a good timing light and extra timing marks on your dampner of 50 to 60 degrees (timing tape will work for this too) you can check out the advance curve you have and total advance. Good luck :thumbup: :nod:


Thanks for all the advice.
I think I'm probably into the carb next. just took a short drive to confirm. Still choking on the throttle. very unresponsive.

I'll check NAPA and see what they have.

If i'm going to pull the center carb, should I block off the other two with plates at this time and work through all three ?

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #92 by bubba22349 » Sat Dec 15, 2018 3:15 pm

thegreyghost wrote:
bubba22349 wrote:Good on Idle setting. :nod:

To Test it you should be able to take off from a stop stabbing the gas without any stumbling. Yeah looks like that pump shot is really weak you probally should pick up a new accelerator pump (NAPA used to have them separate) or you could get a carb kit, spray can Barrymen's carb cleaner and then replace with the new pump Diafram or better still maybe rebuild that center carb compleately.

On the advance If you have a good timing light and extra timing marks on your dampner of 50 to 60 degrees (timing tape will work for this too) you can check out the advance curve you have and total advance. Good luck :thumbup: :nod:


Thanks for all the advice.
I think I'm probably into the carb next. just took a short drive to confirm. Still choking on the throttle. very unresponsive.

I'll check NAPA and see what they have. If I'm going to pull the center carb, should I block off the other two with plates at this time and work through all three ?




That's going to be up to you if you think it makes it easier for you or not both ways can work. I take things in a step by step process that I have been using to quickly accomplish a good precession tune up for these many years. So if I was doing the job I would just leave the other carb's alone for now and keep them installed. After all with the progressive type throttle linkage you have the end carb's don't even come into play / or use until about half throdle and above. Another thing that can have an effect on operation is the carb's float level setting so besure you check that while your working on that center carb. Good luck you have already made some great progress. :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #93 by thegreyghost » Sat Dec 15, 2018 5:37 pm

bubba22349 wrote:
thegreyghost wrote:
bubba22349 wrote:Good on Idle setting. :nod:

To Test it you should be able to take off from a stop stabbing the gas without any stumbling. Yeah looks like that pump shot is really weak you probally should pick up a new accelerator pump (NAPA used to have them separate) or you could get a carb kit, spray can Barrymen's carb cleaner and then replace with the new pump Diafram or better still maybe rebuild that center carb compleately.

On the advance If you have a good timing light and extra timing marks on your dampner of 50 to 60 degrees (timing tape will work for this too) you can check out the advance curve you have and total advance. Good luck :thumbup: :nod:


Thanks for all the advice.
I think I'm probably into the carb next. just took a short drive to confirm. Still choking on the throttle. very unresponsive.

I'll check NAPA and see what they have. If I'm going to pull the center carb, should I block off the other two with plates at this time and work through all three ?




That's going to be up to you if you think it makes it easier for you or not both ways can work. I take things in a step by step process that I have been using to quickly accomplish a good tune up for many years. So if I was doing the job I would just leave the other carb's alone for now and keep them installed. After all with the progressive type throttle linkage you have the end carb's don't even come into play / or use until about half throdle and above. Another thing that can have an effect on operation is the carb's float level setting so besure you check that while your working on that center carb. Good luck you have already made some great progress. :thumbup: :nod:


Well, I didn't find anything alarming with the carb. Actually, it was quite clean. Accelerator pump diaphragm looked good. I did notice that the main well tube appears bent ???

Main jet has "612" on it...not sure what size that is yet.

On a separate note, does anyone know what size the SS ball underneath the hexagonal weight is ? Mine is somewhere in my shop - not sure where :bang:

Image
Image
Image

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #94 by thegreyghost » Sat Dec 15, 2018 6:52 pm

So quick question. If the check ball was underneath the check weight like it's supposed to be, shouldn't I see the weight in this photo ? At this point, all I did was take the top off the carb.

Hmmm.....

Image

User avatar
1strodeo
Registered User
Posts: 99
Joined: Mon Oct 17, 2016 11:09 am

Re: Offy tri-power stalls when in gear

Post #95 by 1strodeo » Sat Dec 15, 2018 10:41 pm

yes should be a hex weight...did you by chance turn the carb upside down when you removed the top?

edit: nevermind, there wouldn't be fuel in the bowl if you turned it upside down :oops:

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #96 by thegreyghost » Sat Dec 15, 2018 11:01 pm

1strodeo wrote:yes should be a hex weight...did you by chance turn the carb upside down when you removed the top?

edit: nevermind, there wouldn't be fuel in the bowl if you turned it upside down :oops:

I have the hex weight, assumed I lost the ball. After looking at the photo I wonder if it was ever there.

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #97 by bubba22349 » Sat Dec 15, 2018 11:14 pm

The ball I think is 1/8 or 3/16 inch it will seal in the tapered hole in the bottom, the ball goes in first then the weight is on top of it. If the ball is missing then that is probally why the pump shot isn't good. Yes the ball is easily lost and also sometimes wrongly left out during a rebuild. On the main well tube if you can gently try to straighten it again examine it for cracks between the holes. If you have a tube that will slide over it may help in the straitening in any case they are quite soft and easily damaged so be real carful or else you can also just leave it alone. Good luck :thumbup: :nod: Edited with adistional info four times last was on Sunday 12:05 PM

How are you doing on the carb?

Holley / Autolite 1940 Carb Manual
http://www.carburetor-parts.com/assets/ ... manual.pdf

In above manual you will find all the basic settings for float level, choke set up, and testing the fuel pump discharge. If you find that the fuel pump discharge test doesn't work as it should, you may have to stake the ball lightly into the carb base. After that you would need use another new ball to replace the one you hammer on fairly sure that these were a 1/8 inch SS ball.

Later on you need to check your total timing and you will need to make some extra timing marks on your Dampener or timing cover at 30 to 45 degrees in about 2 degree increments. You can use a machinists 6 inch steel rule to measure from you existing timing Marks or you can use some timing tape. The "Total Timing sweet spot" will probally be somewhere around the 32 to 36 degree range. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

drag-200stang
Registered User
Posts: 1110
Joined: Sun Oct 19, 2003 6:10 pm
Location: Michigan

Re: Offy tri-power stalls when in gear

Post #98 by drag-200stang » Sun Dec 16, 2018 11:01 am

This may or not help you but my tri power tuning issues went away when I screwed filters directly in the carbs and then drove it some...Then tore down each carb all the way, not disturbing the filter, defuzzed the gaskets, cleaned out all passages...After that no more issues.. Some times it took a couple of tear downs to get what was missed the first time.
The filter before the log does not protect the carb from debris that gets rubbed off when connecting up the carbs and whatever that builds up in the lines from the fuel that solidified and then breaks loose.
66 Mustang Coupe
200 turbo w/lenco 4-spd
stock adj. rockers, stock timing set, ARP studs
best 1/4 mile ET 9.85/best mph 139 on 8 lbs progressing to 15 lbs boost
Went 9's when 10's was fast.

User avatar
thegreyghost
Registered User
Posts: 69
Joined: Sat Dec 01, 2018 1:40 pm
Location: Central PA

Re: Offy tri-power stalls when in gear

Post #99 by thegreyghost » Sun Dec 16, 2018 1:57 pm

bubba22349 wrote:The ball I think is 1/8 or 3/16 inch it will seal in the tapered hole in the bottom, the ball goes in first then the weight is on top of it. If the ball is missing then that is probally why the pump shot isn't good. Yes the ball is easily lost and also sometimes wrongly left out during a rebuild. On the main well tube if you can gently try to straighten it again examine it for cracks between the holes. If you have a tube that will slide over it may help in the straitening in any case they are quite soft and easily damaged so be real carful or else you can also just leave it alone. Good luck :thumbup: :nod: Edited a second time on Sunday 8:58 AM

How are you doing on the carb?

Holley / Autolite 1940 Carb Manual
http://www.carburetor-parts.com/assets/ ... manual.pdf

In above manual you will find all the basic settings for float level, choke set up, and testing the fuel pump discharge. If you find that the fuel pump discharge test doesn't work as it should, you may have to stake the ball lightly into the carb base. After that you would need use another new ball to replace the one you hammer on fairly sure that these were a 1/8 inch SS ball.

Later on you need to check your total timing and you will need to make some extra timing marks on your Dampner at 30 to 45 degrees you can use a machinists 6 inch steel rule to measure from you existing timing Mark or use some timing tape. Total timing sweet spot will probally be somewhere around 32 to 36 degrees. Good luck :thumbup: :nod:


Made some good discoveries today. :D :D I know why main well tube was bent. On two of the three carbs that's where I found the hex shaped weight minus the ball bearing :shock: :shock: Only the front carb was assembled correctly.

Waiting for a couple stainless balls to show up in the mail now. After that, I hope to have better results to report and be able to move onto the timing.

All in all I'm going to call this a good day!
Image

User avatar
bubba22349
Global Moderator
Posts: 9122
Joined: Sun Jan 03, 2010 4:46 pm
Location: Flagstaff, Az. 86005 near the old Route 66

Re: Offy tri-power stalls when in gear

Post #100 by bubba22349 » Sun Dec 16, 2018 2:03 pm

:beer: :wow: great job in finding those problem areas! You will for sure notice a differance once the carb's are back together correctly. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

Return to “144-250 "Small Block" Six Performance”

Who is online

Users browsing this forum: No registered users and 15 guests