Lack of throttle - Team Camaro Tech
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post #1 of 8 (permalink) Old Feb 8th, 07, 02:30 PM Thread Starter
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Brian
 
Join Date: Nov 2000
Location: Ontario, Canada
Posts: 1,290
Lack of throttle

I hope this the best place for this question. I have a 1968 Coupe with a four barrell Quad carb. on a 327. auto with a 400 trans. Obviously non stock. I have very limited throttle movement. My gas pedal seems to hit the floor very easily. I am not sure what to do about this. I have tried the linkage but the rod that goes from the pedal to the carb linkage is hitting the firewall when pressed. There is a lot of slack in the pedal inside the car. It seems to have an aftermarket gas pedal and I am wondering if this is a cheap replacement. Any help would be appreciated.

I have owned 3 69 Z/28s: Garnet Red 30,000 mi unrestored.
Glacier Blue, documented Canadian Z
Rallye Green purchased new in 1969
1968 Camaro Coupe L30 275 horse. ]
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post #2 of 8 (permalink) Old Feb 8th, 07, 04:57 PM
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Re: Lack of throttle

is the outer arm on backwards? maybe?
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post #3 of 8 (permalink) Old Feb 8th, 07, 05:23 PM Thread Starter
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Brian
 
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Re: Lack of throttle

Knowing what I have seen from the last owner that is quite a good possiblity. I will check that when the temperature goes above 2 degrees up here in Canada. I never thought of that but when I see what he did in the Trunk area I would not be surprised.

I have owned 3 69 Z/28s: Garnet Red 30,000 mi unrestored.
Glacier Blue, documented Canadian Z
Rallye Green purchased new in 1969
1968 Camaro Coupe L30 275 horse. ]
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post #4 of 8 (permalink) Old Feb 8th, 07, 06:11 PM
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Re: Lack of throttle

If you have a factory setup, it should look like the photos the guys posted for me in this thread.

https://www.camaros.net/forums/showth...t=throttle+rod

If the linakge hits the firewall and doesn't let you get WOT, it could be:

lever arm backwards, as mentioned above

rod to carb backwards, threaded end goes to carb; if yours has threaded end toward firewall and it fits better that way, you can lop off extra thread length

wrong position for rod on carb; some carbs have multiple positions where the rod fits

Eric
69 'vert project big block/TKO 600 RR
68 'vert driver RS clone -- gone!
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post #5 of 8 (permalink) Old Feb 8th, 07, 07:39 PM
 
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Re: Lack of throttle

i had this problem on a firechicken...it ended up being the mounting bolts to the firewall from the pedal...
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post #6 of 8 (permalink) Old Feb 9th, 07, 09:13 AM
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Al
 
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Re: Lack of throttle

On the lever that goes down behind the valve cover there is a small bolt that tightens that lever to the gas pedal. Make sure that bolt is tight.


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post #7 of 8 (permalink) Old Feb 9th, 07, 11:07 AM
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Tom
 
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Smile Re: Lack of throttle

Do you have a proper return spring on the throttle ? If you are used to the feel of a cable system, the rod has a little different feel.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #8 of 8 (permalink) Old Feb 9th, 07, 04:45 PM Thread Starter
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Brian
 
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Re: Lack of throttle

Thanks for the replies. I will pull it apart and see where the problem is. Now that I know what to look for. I hate the idea of doing this with the engine in place, because I remember doing in on my 69 Z. It turned out there is a special rod for the Z. This is a Quadrajet. There seems to be a lot of play in the pedal itself.

I have owned 3 69 Z/28s: Garnet Red 30,000 mi unrestored.
Glacier Blue, documented Canadian Z
Rallye Green purchased new in 1969
1968 Camaro Coupe L30 275 horse. ]
Stewie is offline  
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