Fuel Filter Inspection / Replacement
Racer
Joined: Apr 2020
Posts: 264
Likes: 200
From: Sicklerville NJ
2022 C3 of the Year Finalist - Unmodified
If inlet fitting just keeps turning and it can`t be tightened then either the fitting or carb threads are stripped and needs repair . DO NOT DRIVE until it`s fixed . If it`s the carb talk to Lars about repairing it.
Steven
Steven
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
Lars
Thread Starter
Intermediate
Joined: Aug 2009
Posts: 48
Likes: 2
From: Atlanta GA
If the fitting keeps turning, your inlet threads in the carb's float bowl are stripped out. The carb will need to be removed, disassembled, and machined for a stainless insert to repair it. There are 3 people who can do that correctly: Me, Cliff Ruggles, and Henry Olsen. You cannot operate the carb before that is done if the threads are stripped.
Lars
Lars
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
It's quite simple - nothing to figure out: If the inlet fitting is spinning and not tightening, the threads are stripped. They need to be repaired. Get it repaired.
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
On second thought - looking closer at the one picture you posted in your first post, the carb has visual indications of being a commercially rebuilt carb. It may not be worth saving. Post a couple of overall photos of that carb so I can see what you have. If it's a commercial carb, you need to start looking for a good, unmolested, rebuildable core that can be rebuilt and set up right.
Also, looking at your one photo, the inlet fitting has been installed cocked and cross threaded. That would explain the stripped threads and your leak problem...
Lars
Also, looking at your one photo, the inlet fitting has been installed cocked and cross threaded. That would explain the stripped threads and your leak problem...
Lars
Last edited by lars; Oct 13, 2022 at 08:43 PM.
