Quadrajet bolt
Team Owner
Joined: May 2001
Posts: 87,325
Likes: 1,588
From: Western NY
It's been quite a while since I messed with a Q-Jet, but I'll offer this suggestion...If a 1/4-20 "almost" screws in, but seems tight, then you might need a 1/4-28 screw......but on second thought, what you really need is an air cleaner stud. Try a Mr. Gasket display at Advance Auto Parts, Autozone, etc.
Thread Starter
Racer
Joined: Jul 2013
Posts: 366
Likes: 19
It's been quite a while since I messed with a Q-Jet, but I'll offer this suggestion...If a 1/4-20 "almost" screws in, but seems tight, then you might need a 1/4-28 screw......but on second thought, what you really need is an air cleaner stud. Try a Mr. Gasket display at Advance Auto Parts, Autozone, etc.
Thread Starter
Racer
Joined: Jul 2013
Posts: 366
Likes: 19
Drifting
Joined: Jul 2004
Posts: 1,695
Likes: 65
From: Kissimmee fl
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Team Owner
Joined: May 2001
Posts: 87,325
Likes: 1,588
From: Western NY
To the best of my knowledge, there is no 1/4-16. The only 1/4" thread pitches I'm familiar with, are -20 and -28. Thinking back, however, I seem to recall that the threads in the recess of the Q-jet don't extend all the way to the top. I'm really stretching the limits of my memory, here, but I think the "tunnel" for the air cleaner stud starts out unthreaded, and a little larger in OD than 1/4", then it "shrinks" to a 1/4" threaded hole.....
Thread Starter
Racer
Joined: Jul 2013
Posts: 366
Likes: 19
Q-Jet air cleaner bolt
To the best of my knowledge, there is no 1/4-16. The only 1/4" thread pitches I'm familiar with, are -20 and -28. Thinking back, however, I seem to recall that the threads in the recess of the Q-jet don't extend all the way to the top. I'm really stretching the limits of my memory, here, but I think the "tunnel" for the air cleaner stud starts out unthreaded, and a little larger in OD than 1/4", then it "shrinks" to a 1/4" threaded hole.....
Thread Starter
Racer
Joined: Jul 2013
Posts: 366
Likes: 19
Q-Jet air cleaner bolt.
