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68 Mustang Throttle Return Spring

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MustangDadDrake
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68 Mustang Throttle Return Spring

Post #1 by MustangDadDrake » Mon Jul 22, 2019 12:05 pm

Hey Guys,

Hoping this is an easy one... I am looking for advice/tips on how to have my throttle return spring set up. I believe I am getting a vibration when my spring rubs against the air filter housing and just in general it does not look secure and clean to me.

I know the older models had a spring connect to the exhaust manifold but that does not seem to be an option for 68, I think. Any suggestions are welcome.

Here is an old picture but it shows the current placement of the spring and how it rubs the air filter housing flange.
IMG_7906.jpg
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chad
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throttle return spring rubs underside of a/c housing

Post #2 by chad » Mon Jul 22, 2019 12:24 pm

just put some weight on the end of that flat stock it's connected to & bend it down?
"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

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Re: 68 Mustang Throttle Return Spring

Post #3 by B RON CO » Tue Jul 23, 2019 7:57 am

Hi, I don't know if that is original Ford or not. You could try bending the bracket up, or drilling a hole closer to the engine to get the spring away from the air duct. I made my own bracket and bolted it vertically up from the motor mount bolts.It is close the engine. Good luck
B RON CO. Still workin' on it!

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Re: 68 Mustang Throttle Return Spring

Post #4 by MustangDadDrake » Tue Jul 23, 2019 4:37 pm

Thanks for the tips guys. I didn't think to make my own, should be pretty straight forward.

I am not sure if it is a Ford piece or not I am having trouble finding them for Inline6 online.
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Throttle Return Spring scrapes a.cleaner housing

Post #5 by chad » Tue Jul 23, 2019 6:17 pm

no, like most us, just what he came up w/. just lean on the out board end & it will then miss the A/C housing, no?
"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

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Re: 68 Mustang Throttle Return Spring

Post #6 by chero1369 » Tue Jul 23, 2019 8:10 pm

Get some needle nose and bend it to fit what you want it to do.
Mine has had 14+ heads on it,and return springs are on the end of the log.Forgot what "tin" looks like.

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Re: 68 Mustang Throttle Return Spring

Post #7 by bubba22349 » Wed Jul 24, 2019 9:21 am

:hmmm: X2 I am with B Ron Co in the opinion that Its not a stock OEM Ford part or return spring. But even so you could just drill a new hole in that home made bracket so the throdle return spring moves over closer towards the engine and is also pulling straighter. Looks like moving it about 1 1/4 to 2 inch towards the engine block should help it clear the air cleaner tube. After you get it to clear you could then cut off all the excess lenght of that bracket round the corners off so it looks a little better 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.

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Re: 68 Mustang Throttle Return Spring

Post #8 by MustangDadDrake » Thu Jul 25, 2019 10:47 am

Thanks again for the tips, I am going to see what I can do to the 'homemade one' on there. I let you know what I come up with.

Bummer there isn't a replacement part for this. Also, I haven't found any replacement springs either.
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Re: 68 Mustang Throttle Return Spring

Post #9 by chad » Thu Jul 25, 2019 10:57 am

https://shop.advanceautoparts.com/p/dor ... gI7MPD_BwE

gotta 'get out there' & search around. That LA area hasa incredable amount of options. Don't like my idea? go for a re-engineer.
Glad you got the diagnosis down, that's usually the hardest part!
AND
OR
Support those who support us:

https://www.vintageinlines.com/product- ... ng-bracket
"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

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Re: 68 Mustang Throttle Return Spring

Post #10 by woodbutcher » Thu Jul 25, 2019 3:13 pm

:hmmm: For springs of all kinds try Ace Hardware.They have the biggest selection of springs in my area.
Good luck.Have fun.Be safe.
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Re: 68 Mustang Throttle Return Spring

Post #11 by B RON CO » Thu Jul 25, 2019 4:34 pm

Hi, I would work with what you have, but Holley has a dual return spring set which is pretty good. Local parts stores and speed shops have them.
Good luck
B RON CO. Still workin' on it!

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Re: 68 Mustang Throttle Return Spring

Post #12 by MustangDadDrake » Mon Aug 05, 2019 8:51 am

Hey guys, thank you for all the advice on this.

I modified my current bracket like you guys suggested. I drilled a smaller hole and cut off the excess with an angle grinder (my first time ever using one).

It works great. I am going to go back in and clean it up a little by rounding the edges but I wanted to show you guys my progress.

Thanks again!

IMG_0912.jpg


IMG_0910.jpg
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68 Mustang Throttle Return Spring

Post #13 by chad » Mon Aug 05, 2019 10:10 am

ya wanna shorten it up to inside the 2 hoses/wires?
no matter~
:thumbup:
"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

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Re: 68 Mustang Throttle Return Spring

Post #14 by 65coupei6 » Mon Aug 05, 2019 10:24 am

The 67-68 should use the same bracket with a linkage. The 69 250 switched to a throttle cable.
Is your engine a 67? Any date code stampings?

Here is a oem bracket. https://www.ebay.com/itm/1967-Ford-Must ... Swbn9cw0gG

If you buy a good shop manual for your year. If the engine and body match. It should have all the pictures you need.
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Re: 68 Mustang Throttle Return Spring

Post #15 by MustangDadDrake » Mon Aug 05, 2019 1:43 pm

chad, the ground cable shouldn't even be there and plan to move it once i get the right grounding bolt but yes I think i got it too close to the steel line now

Didn't think to check the shop manual for the photo. engine is a 68, and thanks for the link. $30 bucks seems like a lot for that but I'll add it to my watch list for now.
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Re: 68 Mustang Throttle Return Spring

Post #16 by bubba22349 » Mon Aug 05, 2019 3:48 pm

Here's a second one for less that's not been cleaned up and repainted and you can even make an offer on it. You could probally make one like it out of sheat metal fairly easy too. Good luck :thumbup: :nod:

https://www.ebay.com/itm/1967-Ford-Must ... 100623.m-1
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.

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sample Throttle Return Spring

Post #17 by chad » Mon Aug 05, 2019 5:58 pm

"...$30 bucks seems like a lot..."
agreed !!!
but U can 'copy"
what I believe U asked 4 initially anyway...
"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

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Re: 68 Mustang Throttle Return Spring

Post #18 by notar61 » Wed Aug 14, 2019 4:33 pm

Anyone know where those brackets from Ebay would attach to on the engine?

I can't figure out where to anchor the throttle return spring on my 1968 200 CID engine.

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Throttle Return Spring

Post #19 by chad » Wed Aug 14, 2019 11:27 pm

there's a buncha brackets "on flee bay", which do U mean?
"A pic's wortha thousand..."
"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

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Re: 68 Mustang Throttle Return Spring

Post #20 by MustangDadDrake » Thu Aug 15, 2019 7:20 am

I believe he is referring to the ones linked in this thread. Posts 14 and 16
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Throttle Return Spring

Post #21 by chad » Thu Aug 15, 2019 10:23 am

6 ppl & 20 posts...for this?
C'mon, look around'n slap it ona bolt or getta scrapa metal & make a 'tab'...
Not happy? pick nother spring. Adapt the current...I don't think sependin $ will get THIS 1 done.
:beer:
"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

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Re: 68 Mustang Throttle Return Spring

Post #22 by notar61 » Thu Aug 15, 2019 10:49 am

I'm all for fabricating and DIY, but I've yet to even see a picture of what the return spring setup should look like on a 1968 200 CID with a Autolite 1100. Just trying to get an idea of what it looks like stock, so I can go from there.

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Re: 68 Mustang Throttle Return Spring

Post #23 by MustangDadDrake » Thu Aug 15, 2019 10:57 am

I am with you Notar61. I haven’t seen a stock set up for a 68 I6. I need to check my shop manual to see if it shows it there, I’ll let you know.
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Re: 68 Mustang Throttle Return Spring

Post #24 by Matthew68 » Thu Aug 15, 2019 11:12 am

FWIW, my throttle return spring was attached to the exhaust manifold for the last 20 years with no issues.
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Re: 68 Mustang Throttle Return Spring

Post #25 by notar61 » Thu Aug 15, 2019 11:54 am

Cool. Thanks for looking MustangDadDrake!

Maybe there were several options on how to attach the spring? So far I've heard exhaust manifold,end of the intake log, alternator bracket, or use the brackets that are for sale on Ebay. Seems like a lot of different ways to accomplish one thing.

Thanks again for all the help on this though!

-Andrew

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Re: 68 Mustang Throttle Return Spring

Post #26 by notar61 » Thu Aug 15, 2019 5:47 pm

In the video below, it looks like the return spring is anchored to the end of the intake log. Maybe that's how it's supposed to be?

https://www.youtube.com/watch?v=5bvaRvI9z_g

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Re: 68 Mustang Throttle Return Spring

Post #27 by MustangDadDrake » Sun Aug 18, 2019 1:38 am

Yep end of intake log per the shop manual. I’ll check it out in the morning but doesn’t seem secure at first glance.
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Re: 68 Mustang Throttle Return Spring

Post #28 by bill pierce » Sat Aug 24, 2019 3:48 pm

I really thought the stock setup was pretty crappy. So I used a generic NAPA dual spring. I attached it to a small bracket that I made bolted to the exhaust header.

IMG_2549.jpg
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Re: 68 Mustang Throttle Return Spring

Post #29 by bill pierce » Sat Aug 24, 2019 3:49 pm

Oops don't know why the picture posted upside down?

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Throttle Return Spring Location

Post #30 by chad » Sat Aug 24, 2019 5:48 pm

air cleaner, fuel filter and PCV?
"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

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Re: Throttle Return Spring Location

Post #31 by bill pierce » Sat Aug 24, 2019 7:58 pm

chad wrote:air cleaner, fuel filter and PCV?


Air filter was off for the picture, fuel filter is mounted on top of the pump, (like 90% are) and PVC is not used.

Mom always said if you can't be nice keep quite. Good advice don't you think?

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placement of Throttle Return Spring

Post #32 by chad » Sat Aug 24, 2019 8:29 pm

sorry U interpreted it that way.
Nxt time I will write clearer longer more detailed explicit understandable specific sentences...
Not my tendency, but most know me as a pretty benign'n helpful fella
:oops:
:nono:
:thanks:
for the engine info
"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

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Re: 68 Mustang Throttle Return Spring

Post #33 by MustangDadDrake » Sun Aug 25, 2019 12:12 am

I really like your set up looks very clean and I can tell you put a lot of effort into it.

Question on the bracket, which might be a dumb one, how do you know how much tension you need on that spring? As long as its not too hard to press on the pedal and not too loose that it can’t go back in place...?
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Re: 68 Mustang Throttle Return Spring

Post #34 by bill pierce » Sun Aug 25, 2019 11:41 am

MustangDadDrake wrote:I really like your set up looks very clean and I can tell you put a lot of effort into it.

Question on the bracket, which might be a dumb one, how do you know how much tension you need on that spring? As long as its not too hard to press on the pedal and not too loose that it can’t go back in place...?


Thanks!

Yes by feeĺ is good enough. It doesn't take much because the carb has a spring too. You just want to make sure it closes all the way. Redundicy is good for all things safety and I don't think a dual spring is more than 10 bucks.

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Re: 68 Mustang Throttle Return Spring

Post #35 by spacecadet » Sun Sep 08, 2019 4:33 pm

Image

Both the bracket and dual spring are Spectre Performance parts, available at the local Auto Zone.

Bracket mounted using the exhaust bolt.

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