Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor
Slight popping out of carb
ALS71GS:
Thanks for the reply cruiser...my last post was a jumbled mess (computer has a mind of its own) .Should of read, Cliff I do have a very slight stumble / hesitation just off idle under very light throttle, more noticeable before car is fully warmed up,will a higher apt setting cure this?
I think initial timing is 14 btdc with 10 from vacuum can (manifold source )
Thanks Al
blazer74:
Raising the apt can help.
Pump shot, are you on the outer hole.
At one time I inadvertantly put the lever on the inner hole and had similar symptoms.
Frank400:
--- Quote from: blazer74 on July 10, 2016, 10:58:16 PM ---
Pump shot, are you on the outer hole.
At one time I inadvertantly put the lever on the inner hole and had similar symptoms.
--- End quote ---
you definitely WANT to be on the INNER hole. Inner hole will give more fuel per pump stroke.
dlong70elcamino:
I had this problem with my Q JET on my built 350 Chevy. More timing and set the secondary air door spring 1/4 turn tighter and it fixed it. Its launching at the drag strip no backfire no hesitation at all. Hope it helps .....Dan
blazer74:
--- Quote from: Frank400 on July 11, 2016, 06:12:15 PM --- you definitely WANT to be on the INNER hole. Inner hole will give more fuel per pump stroke.
--- End quote ---
YES, the inner hole. I had a moment, my apologies.
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