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Anonymous
Guest
Got any jetting ideas , mines running like crap with #52 idle jet and a 170 main. Got any ideas ?
- Al
- Al
Patrick66
Famous Member
not at all right now 
, ive been focusing on the body and getting it ready for paint. good news is i just unwrapped the engine bay and got the new gas tank in. trunk looks nice.
i should be playing around soon... but i found the 2 first threads on my center carb's throttle shaft are messed up. i was adjusting the linkage, and now i cant tighten it (thats why i was asking if i could just remove the 'fast idle' lever)
, ive been focusing on the body and getting it ready for paint. good news is i just unwrapped the engine bay and got the new gas tank in. trunk looks nice. i should be playing around soon... but i found the 2 first threads on my center carb's throttle shaft are messed up. i was adjusting the linkage, and now i cant tighten it (thats why i was asking if i could just remove the 'fast idle' lever)
A
Anonymous
Guest
I thought that I was in the ballpark with 170 . In order to stay running the mixture screw is out five turns and a 52 idle jet the outboards 155 main and 50 idle . Patrick its good to hear that you're still moving forward on your project , hurry up and get it running so we can all the weber tripower guys can meet at John G 's to compare carb jetting notes . He appears to be centerly located.
- Al
- Al
A
Anonymous
Guest
I thought that I was in the ballpark with 170 . In order to stay running the mixture screw is out five turns and a 52 idle jet the outboards 155 main and 50 idle . Patrick its good to hear that you're still moving forward on your project , hurry up and get it running so we can all the weber tripower guys can meet at John G 's to compare carb jetting notes . He appears to be centerly located.
- Al
- Al
Patrick66
Famous Member
im working on it. the transmission has fluid in it now so i can run it, but im going on vacation on saturday.
this is part of an email highvolkage sent me.
stock main jets could mean anything, i got 3 different main jets in 3 different carburetors... so i dont know what exactly hes got there.
this is part of an email highvolkage sent me.
stock main jets could mean anything, i got 3 different main jets in 3 different carburetors... so i dont know what exactly hes got there.
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Anonymous
Guest
that's the problem I'm sorting out right now . The ICH ( center carb ) was from a BMW and the ICT ( outboards ) were from a VW bus . All had different jets . Good thing for us that John G and high voltage both have good running engines . It does'nt appear to be many others that are running the weber 34 . Did you check out piercemanifolds tuning section ?
- Al
- Al
I f you have to turn the screw out that much to keep it running, it is definately TOO small. 1.5 to 2 turns is all it needs. Get a drill kit of small bits and find one that fits the current jet. Use the next one up and drill it out if ya have too. My outer carbs are still rich at wot, but my float levels are a little high. Hopefully this post isn't seen as highjacking-just trying to help. Patrick, you say the threads were boogered on the main carb and not allowing the fast idle arm to stay on the shaft-did you take a shaft from one of the other carbs and leave off all the un-needed stuff for one of the outers then?
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Anonymous
Guest
good call on the drill bits it will be a lot faster than ordering and waiting
- Al
- Al
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Anonymous
Guest
agreed, why keep it simple ? It will have to wait a week or so I'm off to the north woods , beer and fishing don't u know .
- Al
Patrick66
Famous Member
JOHN G":38wwu3rv said:
since i have 2 ICH's and 1 ICT (choke has been removed from one ICH, and doesnt need the fast-idle), i swapped the bottom of the other ICH. its all good now.
check out piercemanifolds and webercarbsdirect.com for drill bit kits, it will take time to ship still, but they have some specialty bits meant for drilling out jets. maybe it will give you more control over the flow rate, either way be careful when drilling. make sure you go perfectly straight on each one.
Patrick66
Famous Member
so i finally got some stuff for you. i got tired of waiting for the fuel sending unit seal, and just stuck a rubber fuel line into a gas container. fired it up with just the center carb.
Jetting info:
main - 170
acc. pump - 55
idle - 70
the idle screw was turned out 2 full turns and at idle i was between 12 and 13:1. i think. i didn't stay at idle very long because i'm running in the cam. or im supposed to be.... the engine died a couple times, i'd restart it and bring it up to 2k for a few seconds and it would cut out. im thinking the fuel system i setup temporarily wasn't working so well. i re-checked the float level also, it was ok.
at 2k and above i had a 12.8 or so. i need to play with the timing, because its pretty retarded right now. i will wait for the seal to get here (along with ~$470 worth of chrome
), then get some more tuning done.
i cant wait, next weeks going to be very busy for me, i hope i'll get some time to play.
Jetting info:
main - 170
acc. pump - 55
idle - 70
the idle screw was turned out 2 full turns and at idle i was between 12 and 13:1. i think. i didn't stay at idle very long because i'm running in the cam. or im supposed to be.... the engine died a couple times, i'd restart it and bring it up to 2k for a few seconds and it would cut out. im thinking the fuel system i setup temporarily wasn't working so well. i re-checked the float level also, it was ok.
at 2k and above i had a 12.8 or so. i need to play with the timing, because its pretty retarded right now. i will wait for the seal to get here (along with ~$470 worth of chrome
), then get some more tuning done. i cant wait, next weeks going to be very busy for me, i hope i'll get some time to play.
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Anonymous
Guest
I skipped the drill bit idea it's a good one , but I'm alittle shakey so I ordered and now have a 60 , 70 and 80 idle jet if I get time I'll doing some more tuning this week and post what happens. Patrick did you install a JAW ?
- Al
- Al
Patrick66
Famous Member
redburd":ykdwaxem said:
i wouldn't hesitate to drill my own with a set of bits like this http://piercemanifolds.com/accessories.htm (5th item down)
but its not cost-effective for me. if i were tuning a bunch of cars with webers, then i would probably invest in something like that, but i just have the mustang. i wouldn't do it with hardware store drill bits though.
i have a couple of extra jets that I know are way too big so I'm going to solder them and redrill. I test-fit the smooth end of the bits in a couple of jets to get an idea of what sizes roughly equal out to each jet #. I can't see that there will be any problem as long as I take my time and remove any burrs that may show up. Worse case scenario is that it just doesn't work and I'm no worse off than I am now. At $6 and up a jet, it gets a little expensive to tinker with multiple combos. I'm going to make my first attemp in the next evening or so-Ill post results.
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Anonymous
Guest
Patrick I'm dying to see how the air/fuel numbers look when your outboard carbs are hooked up . The idle jets cost with shipping 18.40 before I quit it would cost me that much to smoke !
- Al
- Al
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