Linkage Problem

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73Lee

Member
Joined
Oct 10, 2016
Messages
9
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Location
west coast
My Car
73 Mach 1
So! I am new to this forum though I have stalked for a while, and new to the world of restoring a classic car/cars in general. So Please, bare with me friends. Anyways, I went to start the stang and it was floored as if the throttle was wide open. Please help, as I don't know where to start. I have tampered with it and everything seems fine but isn't. ;/

 
Carburetors have a choke, which on our cars is automatic. When the engine is cold the choke butterfly closes and is connected to a fast idle cam and linkage that increases the idle speed to 1600 to 1800 RPM, not floored, but noticeably much faster than a warm engine idle speed. Tapping the throttle will allow the fast idle cam to back off to lower idle speeds, as the engine warms.

Does your accelerator peddle seem to be in its normal position, or is it in fact all the way, or nearly all the way down to the floor? When you press the accelerator and release it, does it return to its normal position? If not, your throttle return spring may be broken, disconnected, or missing.

 
Grab a helper and have them (with the engine off) slowly push the gas pedal while you watch the throttle linkage and carburetor to make sure the cable is moving smoothly.

Are you familiar enough with the carburetor to know what you are looking at?

 
Carburetors have a choke, which on our cars is automatic. When the engine is cold the choke butterfly closes and is connected to a fast idle cam and linkage that increases the idle speed to 1600 to 1800 RPM, not floored, but noticeably much faster than a warm engine idle speed. Tapping the throttle will allow the fast idle cam to back off to lower idle speeds, as the engine warms.

Does your accelerator peddle seem to be in its normal position, or is it in fact all the way, or nearly all the way down to the floor? When you press the accelerator and release it, does it return to its normal position? If not, your throttle return spring may be broken, disconnected, or missing.
Got it, thanks man greatly appreciate it!

 
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