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Re(1): 4 Barrel not working IP: 96.42.176.82 Posted on June 13, 2014 at 01:49:22 AM by DynoDave
Hello Grigaitl! I'm glad found the forum. The website has been up and down quite a bit this year, so it's been a little slow around here.
Your factory carburetor would have been a Carter Thermo-Quad. It used a unique mechanism to inhibit/allow secondary operation. There is a vacuum diaphragm that performs two functions....choke pull-off, and allowing secondary air door movement.
There is a good scan of a Federal Mogul Thermo-Quad manual at...
The pull-off can be see on page 14. Obviously, as a rubber diaphragm, it is susceptible to the ravages of time. You can check to see if it is holding a vacuum. If it is, you can check it's adjustment. The procedure is lengthy, and should probably be followed A-Z, as many of the functions are inter-related, and must be done in the proper order.
Good luck with your project! Replies: There have been no replies.
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