can i adjust spring onfront power valve autolite 4100
615

Asked by Neil Feb 10, 2021 at 09:16 AM about the 1963 Ford Thunderbird Hardtop Coupe RWD

Question type: Maintenance & Repair

When I operate by HAND the front power valve on Autolite 4100  it pumps
plenty of fuel into the carburetor and the car starts first time even at minus 5
deg
but I noticed that when I press the accelerator pedal the throttle works fine
but the power valve either only moves a bit or doesn't go fully back to load
again so that I can pump fuel three or four times to start the car, the valve
itself seems fine but the arm only moves a tiny bit its not the arm setting, I've
tried that. Can the spring be made stronger to help it return etc? adjustments
etc

2 Answers

F_O_R answered 3 years ago

It sounds like a linkage problem. Look for an adjustment but something may be worn out. Is your choke working properly?

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615

Neil answered 3 years ago

f-o-r thanks regarding the Autolite 4100 the carburetor works fine, the choke works fine, the accelerator works ( although the foot pedal height is almost to the floor the problem is when I press the accelerator that moves but the accelerator pump does no,t even though it's connected properly it is free and I can move it by hand and it pumps fuel into the carburetor ok and the car starts is there some way that the accelerator pump SPRING could have come loose, moved, etc I've had it off, and there doesn't seem to be an adjustment or is there? help please when it's a cold morning I have to pour fuel into the carburetor then it goes well or I manipulate the accelerator pump by hand

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