Quadrajet Problem Solving > Diagnose a Quadrajet carburetor problem

how to remove plug for apt

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70f400:
I have read threw the book several times and can not find a section on how to modify my carb (17057262) so I can adjust the APT screw externally.  there is an aluminum plug over the adjustment screw on the air horn.  Do I knock it out and tap it for a pipe plug?  I have rebuilt it using the parts I purchased from you.

429bbf:
if its like most of the later carbs. you just tap it out from the bottom and tap it to a 3/8-16 don't tap it to far . i only go deep enough so my allen head screw is flush when its tight. also take a hack saw and put a screwdriver slot in the top of the screw that way if you don't have the tool to turn it you can adjust with a small screwdriver. fwiw

70f400:
sounds easy enough thanks

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