Best Way to set the idle mix on a 4160

[steve meltzer]

Patrick, i drove the car pretty hard on Friday and Saturday, after shooting a bunch of carb cleaner, not WD40 (my usual, defiant self!), on that throttle shaft, and any other part of the carburetor that would hold still, but it made no difference. This AM I really had to put my foot on the pedal to move the throttle, then it "broke loose" and great thereafter. (BTW, the off idle performance is pretty good...and might be better with the new "red" pump cam, which should be here tomorrow. Timing remains nice and steady at 10° BTDC).

Would taking the carb off the car, and onto the bench help any?? I guess I can just live with it, but I like things to work the way they were intended. thanx s

[patrickt]

Originally Posted by steve meltzer

Would taking the carb off the car, and onto the bench help any?? I guess I can just live with it, but I like things to work the way they were intended. thanx s

I think you have to. And here's why, anything that can stick in the "closed" position can get a notion to stick in the "open" position. Short of "off-roading" in your Cobra, the scariest thing I can imagine is a stuck throttle at anything close to WOT conditions. Hopefully you have a rev limiter on your car, so you can throw in the clutch and listen to her bounce of the limiter until you can reach for the key, but it will still be a pretty significant safety hazard. Of course, if you don't have a rev limiter then you'll get the opportunity to chat with blykins about "so how hard is it going to be to fix this window in the side of my block?"