Looking for sympathy
Post Fiend
Joined: Jun 2003
Posts: 8,209
Likes: 12
From: Black Hills of SD
I have never done aford carb either, just quadrajets. They had the throttle cable and return spring both pulling the shaft to the rear and were prone to wear. Fords usually have the return spring applying force on the shaft in the opposite direction of the cable/linkage and don't tend to get slopped out so bad.
CCampbell high idle is basically something above 2000rpm It refers to a speed where the carburator is no longer running on the idle circuit and is instead being fed through the main metering cicuit, and also where the mechanical advance of the distributor has come in.
CCampbell high idle is basically something above 2000rpm It refers to a speed where the carburator is no longer running on the idle circuit and is instead being fed through the main metering cicuit, and also where the mechanical advance of the distributor has come in.
Posting Guru
Joined: Dec 2002
Posts: 1,428
Likes: 0
From: peoria, az
There should also be a step-cam that the idle screw will ride on when the choke is closed that raises the idle.
Turn your mixture screws in (clockwise) a little at a time. Turn each one an 8th turn and wait a few sec's for it to stabalize. Keep turning them like that until the engine starts to run a little rough. Once you get to that point, turn them both CCW 1/4 turn. That should be where it will run the best.
Turn your mixture screws in (clockwise) a little at a time. Turn each one an 8th turn and wait a few sec's for it to stabalize. Keep turning them like that until the engine starts to run a little rough. Once you get to that point, turn them both CCW 1/4 turn. That should be where it will run the best.
Post Fiend
Joined: Jun 2003
Posts: 8,209
Likes: 12
From: Black Hills of SD
Actually doesn't that carb have a seperate screw for the fast idle? I used to have trouble with those carbs in cold weather. The high step on the fast idle cam would just about have pushrods coming through the hood and the next step down would be too slow to keep running. I think they only had 2 steps. But I guess that was th auto choke on the 74 and the 76 that I hac that problem with.
I always liked to pirate the manual choke carbs from the69 and earlier because they had a ramp instead of steps and also you could eliminate the troublesome heat stove.
I always liked to pirate the manual choke carbs from the69 and earlier because they had a ramp instead of steps and also you could eliminate the troublesome heat stove.
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