This has probably come up before, but I couldn't find it with the search. I've moved the choke around, but the fast idle cam doesn't want to dis-engage. What is supposed to kick it off? Does the choke coil rotate it enough, or does the lever on the throttle linkage kick it off.
Thanks for any help.
James
When the choke is adjusted to specifications, try holding the throttle blades open with your finger, then pull the throttle linkage where the cable connects to and then let go when it looks like the adjustment screw is on the second step of the fast idle cam. The throttle should stay open on the fast idle cam. Now push down on the throttle again (where the cable connects) and let go. The fast idle cam should release and the throttle blades should close.
The choke coil heats up and moves the choke linkage as well as tilts the plastic fast idle cam. When you open the throttle after the cam tilts enough, gravity causes the cam to drop back and lets the throttle return to normal idle.
I think the plastic cam is too light as is and if the carb linkage has ever been lubed, then the cam will often stick from dried oil and dirt, just like mine does.....
The fast idle cam pivot point should be cleaned of all lube and gunk.
I learned my lesson - now I need to clean my linkage.
Ahhh. I didn't realize that gravity was supposed to tilt it off. It definitely seems to be sticking a little bit. I can can bump it with my finger and it will kick over. There might be some dirt or dust in there, it's been sitting in the garage and the whole car has had a layer of dust on it. I kept a rag over the air horn, but I guess that wasn't enough.
Is there a way to clean it with the carburetor on the car. Like with brake parts cleaner maybe? or will that melt the cam?
The carb can stay on the car, but the choke coil and linkage will need to be stripped off enough to remove the fast idle cam. The cam's pivot hole and the pin it rotates on will need to be cleaned well.
Whew, that was an ordeal. It was crudded up with something after all and after an hour of trying to get the retaining pin on the choke rod I thought you were misleading when you said it could be done on the car. AND THEN the upper left choke ring screw hole decided to strip out, so I ended up having to pull it off again. long story short, after 3 times on and off, I can get that pin in the choke rod in about 30 seconds :lol:.
It seems to work correctly now, in fact it surprised me when it kicked into normal idle the first time.