Throttle problem - Team Camaro Tech
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post #1 of 5 (permalink) Old Jun 25th, 02, 03:57 PM Thread Starter
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Join Date: Apr 2002
Location: Santa Clarita, CA
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I recently bought a 67 camaro with a non original 350 engine and 350 tranny. I have a holley carb with vacuum seondaries. The problem I have is that when I press my pedal to the floor the primary flaps on the carb only open maybe 75-80%. I have a solid linkage (non cable) connecting the rod from the pedal linkage in the engine compartment to the carb linkage. There is no slack or play there. It appears that my pedal sits pretty low to the floor to start with so I'm not getting enough throw to open the carb up 100%. How would you guys recommend I fix it? I can pull the pedal up away from the floor pretty far but it will drop back down when I let go. Maybe the bushing or assembly is worn? Maybe I should buy another pedal assembly? I noticed that the pedal assembly is bolted to the firewall with 2 screws screwed in from the engine compartment side. It's going to be hell trying to get to those 2 bolts off as they are behind the engine. But if that's my only option. I also thought about maybe trying to bend the pedal assembly up a little so I have more clearance from the floor. Any thoughts? Thanks a bunch!

[This message has been edited by CC (edited 06-26-2002).]
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post #2 of 5 (permalink) Old Jun 25th, 02, 05:33 PM
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Join Date: Jun 2001
Location: Central Minnesota
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My 69 had similar issue, the firewall plastic sleeve for the throttle rod was cracked. I had to fit the right size socket onto a small vice grips and reach down with that to turn the screws off, one notch at a time, very bad position but can be done. Yes you might check the pedal bracket as well, and while at it, replace them both and dont worry about bending parts to make them work. Thats my 2cents worth. good luck

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post #3 of 5 (permalink) Old Jun 25th, 02, 05:56 PM
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If the above doesn't cure it, make sure the rod isn't too long. Shortening it up (if it's adjustable) or putting a shorter one on there would cure the problem.

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post #4 of 5 (permalink) Old Jun 26th, 02, 09:30 AM
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Is the rod an adjustable type? I had the same problem, the pedal would only open the throttle about 80%.

Two things were causing the problem.

The motor was tilted to passenger side by about an inch due to mis-matched motor mounts. Once the correct mounts were installed I had more room between the valve cover and linkage that comes from the pedal.

The second piece of the problem was the rod was not adjusted properly.

I would look into an adjustable rod.

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post #5 of 5 (permalink) Old Jun 26th, 02, 10:53 AM Thread Starter
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Thanks everyone for their suggestions. In frustration figuring I would have to replace the assembly I ended up grabbing the pedal by hand and pulled upward. I thought that I would end up breaking the assembly but it actually bent up just like I needed to. Thanks again everyone!

[This message has been edited by CC (edited 06-26-2002).]
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