General Category > Quadrajet Carb Talk and Tips

Choke Question

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Hikin Mike:
Been trying to finally get a working choke after 25+ years w/o one. The carb in question is a "Frankenstein". The main body is a 800cfm 7041540 (1971 Buick), the air horn should be the correct '7044929' and the base plate is definitely not the correct bp, a '7037174'. The car is a 69 Firebird 400 w/455 running the original intake, so I still have the divorced choke.

The problem is what choke parts do I need? I'm currently using:
34735 - Choke housing
40843 - Cam
37623 - Lever

When I added them, it seemed to work okay, until the next morning. One press to the gas pedal should have engaged the choke, but the blade was still open. Had to manual set it, so I think I either need to adjust it, or I have the wrong parts.

Cliff Ruggles:
You have an early Buick choke bracket assembly on the side of the carb.

It's not the same as a 1968 Pontiac.

The attachment point it further away from the carburetor so you'll either have to do some bending on the link up from the choke or make another one.

Another option is to put a 1968-70 choke bracket on the side of the carburetor......

Hikin Mike:
Since I'm fresh out of 1968-70 choke brackets, I'll continue to modify my existing link.

Thanks Cliff.

Cliff Ruggles:
You can also make one out of a piece of aluminum TIG rod.  Very easy to bend vs steel and works just as well....

Hikin Mike:
I'm 99.99% sure the base plate (7037174) is NOT a Buick. The top and middle housing is Buick.

Are these correct for my base plate:

34735 - Choke housing
40843 - Cam
37623 - Lever

What are the part numbers for the 68-70 choke housing, cam & lever?

Another question. Who do I adjust the choke rod? Do I push down the rod/choke stove and close the blades or do I pull up the rod/stove?

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