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-   -   Q jet choke problem (https://67-72chevytrucks.com/vboard/showthread.php?t=437324)

jimmq 12-25-2010 10:46 PM

Q jet choke problem
 
Ok, I've been here before with this problem, with no luck fixing it yet. 72 K20 Does not want to stay running right after a cold start. The choke closes fine but vaccume pulls it open as soon as it starts. The spring tstat is fairly new, I have tried to bend the choke linkage to adjust the travel but the vaccume piston is overriding everything. I kind of need to fix it because I use the truck for snowplowing. Thanks

geezer#99 12-26-2010 12:37 AM

Re: Q jet choke problem
 
Have you got a pic of your choke. You might need to lengthen your choke pulloff linkage rod.

jimmq 12-26-2010 04:27 PM

Re: Q jet choke problem
 
I have tried to adjust many things on that card but never that. Many thanks. It works great now. I never knew that rod could be bent to make it longer.

Boog 12-26-2010 04:33 PM

Re: Q jet choke problem
 
Fine tune the qjet and they really are great carbs.

jimmq 12-26-2010 04:36 PM

Re: Q jet choke problem
 
I guess I gotta find a good shop book on this carb. My old Chiltons book wasnt helpfull on this thing.

geezer#99 12-26-2010 04:41 PM

Re: Q jet choke problem
 
Here's a link for you.
http://www.vetteprojects.com/kstyer/quadrajet.htm
And look on amazon.com I think they list a book on how to rebuild the quadrajet.
Amazon.com: quadrajet carburetors: Books Amazon.com: quadrajet carburetors: Books

C20-67_N_MO 12-26-2010 04:55 PM

Re: Q jet choke problem
 
Good info!

Trying to add an electric to my Q-Jet as it just has the choke and arm but nothing really attached to it.


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