General Category > Quadrajet Carb Talk and Tips

Going to take apart what I just bought

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Cliff Ruggles:
I'd take it apart and see what you find, they may have already made modifications to it......Cliff

AZracer:
Well it is not right when I start it up. The other carb the one thing it did do very good was start and idle even without a choke, but had a big hesitation at part throttle and full throttle just die. This new one has no hesitation anywhere and is strong at WOT. It does not respond much when I turn the idle mixture screws is harder to start and has a ruff idle. I am going pull it off and check everything to your recipe # 1 Plus check the idle circut in the old one because the engine liked it.

If indeed it has two upper idle bleeds which one should I disable? Or doesn't it matter. Can I buy individual parts from you or do have to buy a whole kit if I find a problem.

Thanks again, Pat

Cliff Ruggles:
Most likely you will find the smaller fuel inlet seat, and wrong pump spring (coil binding) on the pump.  Difficult to say what you'll find for upper idle bleeds.  Pontiac used them in the airhorn for the early carburetors, many others had them in the main casting.

Doesn't sound like it's got enough idle fuel either way.....Cliff

AZracer:
I don't think I have any upper idle bleed. !!!

Pat

AZracer:
Airhorn

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