Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

Throttle blades open to far

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Garrett71monte:
Thanks for the quick replays. So here are the number.
Carb number is 17056202
Air horn air bleads. 042
Main body air bleads .042
Idle tubes .038
Idle down channel .052
Primary jets 77
Primary metering rods 46k
Idel air bleads main body .070
Idle lower air bleads .063
Idle bypass air .125
Mixture screw holes .99
Da secondary rods
O hanger.
As of now it has way to much fule it seams like because when I screw in the idle screws all the way in it seams to run better. Then I noticed when I removed the carb to look in to my problem is when I saw the transfer alot is exposed. Hopefully the info i posted will help you guys help me. Thanks again for everything.

Garrett71monte:
Sorry I missed the timing question. My full mechanical advance is at 38 so the puts my initial timing at 18 . I have full vaccum advance with and adjustable vaccum canister set to about 5in of vaccum. I belive at idle it has about 30

Cliff Ruggles:
Are you listing the MAIN airbleeds at .042" airhorn and in the main casting?

Why all that timing at idle speed?

It should be fine with 18 degrees initial timing provided the compression is 11 to 1.

77cruiser:
How much vac. at idle?

Garrett71monte:
Sorry I forgot to include I talked to cliff a while ago about my carb set up going on this motor. Before it had big man air bleads at .114 in the air horn and .118 in the main body. So you sent me brass bushing that I stuffed in to resize the primary air bleads. I have 11 in of vaccum at 900rpm. I'm running manifold vaccum so I can have a stronger idle . I have a 2004r behind it and the torque converter isn't loose enough for when the car is put in to gear. Also im able to lower I'm throttle blades more with the vaccum hooked up to pull in more timing. Or if I'm wronge please let me know. The motor dose not slow crank on start up or dose it diesel when shutting it off at temp.

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