Quadrajet rough idle. Rough Idle This can be caused by several things, but there is one item often...

Quadrajet rough idle. Rough Idle This can be caused by several things, but there is one item often missed by the rebuilder and that is the idle tube. so it idles at around 1000 and wont come down unless you pull on the linkage. They can have lousy idle quality on a cammed motor because they already start out borderline-lean on a stock motor. So, I did a smoke test, blowing some smoke into the intake and carb. Sending my quadrajet out for a rebuild & some performance enhancements but noticed this when I lifted it off. Results in: Flooding, fuel coming out of accelerator pump shaft hole, leaking air horn gasket, fuel discharging out main discharge nozzles at idle, fuel dribbling down venturi after engine shut-down, poor hot-start, hesitations off idle, poor fuel economy. Incorrect adjustment of these mixer screws is known to be the most common cause of rough idling as many faced when their Edlebrock idle mixture screws not responding. Learn how to diagnose and fix these problems for smoother engine performance. My problem is that the primary shafts wont close enough to get the linkage to hit the idle speed screw. The idle screws on a Rochester Quadrajet carburetor fine tune the air-fuel ratio going into the engine during idle. sws gpvtgiu ggg kcuqxlyl nnt uqln djnh wkxlao aknsr jtdc