Quadrajet choke pull-off

[Wageslave]

As the snow has cleared and I am starting to get back into the Bonneville again, I am noticing that my choke isn't fully pulling off. I had rotated my electric choke coil cap all the way to where it wouldn't even engage the choke and it still would not fully release until i manually moved the counterweight. In the short term I added a magnet onto that counterweight to give it more weight and that seems to be working ok. I did check the vacuum pulloff dashpot and it is working fine and all the linkages to it seem to be free.

What is the best method to set the choke up on an assumed good non-CCC quadrajet?

 

[69hurstolds]

Is everything clean? Sometimes they can get a bit goo'd up and stick. Does it release with a blip of the throttle when warmed up?

This COULD be helpful...from the 86 Monte CSM.

 

[69hurstolds]

CCC or regular Quadrajets have pretty much the same choke operation, so whether it's CCC or not doesn't make any difference, really.

 

[78Delta88]

On a cold engine, loosen the three screws on the choke perimeter. Move the choke plate to where its edge just kisses the metal of the air horn. Tighten the perimeter screws.

Apply vacuum to pull off with the mityvac and see if choke opens about 1/16 to 1/8 inch. If not, use the adjustment screw to set the opening about 1/16th inch.

Reset everything and car should start and maintain idle.

 

[Wageslave]

I'll give that setup a try. I tried setting it hot to where the choke blade is vertical, but I may not have sufficient choke when it is real cold that way.

 

[spongbob]

Some carbs chokes may end up being 2 to 3 times wider gap wise then others considering temp average and jets leakage mixture ect...setting in colder Temps should be best....it us possible to add lib a bit when you have enough experience...I have mentioned that back in the day I ran carbs with a small peice of wire or tin attached to the filter bolt that scotched the choke plate open in such a way but not be in danger of coming loose and getting into the engine I thought this worked out the same as the pullout fears aside " of course one can adjust something if it is in working condition