Quad stripped thread repair?
Thread Starter
Melting Slicks
Joined: May 2000
Posts: 2,305
Likes: 5
From: Orlando,Fl,USA
Quad stripped thread repair?
Stripped the fuel intake housing on thr Q jet. This is the big one that threads into the carb body and than the fuel intake goes into that. How to fix???
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
there is the Bubba and a $$$$ way,, the self tappers that have a seal have worked for me,,,I don't put the filter back in there i add a inline on so it never gets oped again, i all ground off the letters that saw filter
Drifting
Joined: Jun 2005
Posts: 1,950
Likes: 498
From: Chino Hills CA
It would be best and probably cheaper just to pick up another body. You could use a bunch of JB weld on the threads and force it in. In 99% of the time I trust in JB weld, but in the small chance a leak would develop, you'd be risking an engine fire. Used Q jets are cheap at swapmeets, even on ebay, just check your numbers first.
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
If your carb is an early Q-Jet with divorced choke and 7/8-20 inlet threads (not the 1"-20 threads used on the later carbs that have the inlet fitting with the white nylon seal), I can repair the threads. I have all the equipment to correctly thread the carb and install the stainless steel insert. Drop me an e-mail for detailed info and cost on the service.
Lars
V8FastCars@msn.com
Lars
V8FastCars@msn.com
Le Mans Master
Joined: Apr 1999
Posts: 6,134
Likes: 46
From: Raleigh North Carolina
Originally Posted by Garys 68
Stupid question. Is there enough material to use an NPT tap, then install a male pipe to inverted flair adapter?
Much easier and cheaper than the special helicoil.
Gary
Much easier and cheaper than the special helicoil.
Gary
I believe the casting is too thin, and there is not enough depth even if there was enough meat.
Lars has the right equipment for the job to be done properly... toss it his way.
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Melting Slicks
Joined: Apr 1999
Posts: 2,010
Likes: 3
From: Moon Twp. PA USA
Originally Posted by lars
If your carb is an early Q-Jet with divorced choke and 7/8-20 inlet threads (not the 1"-20 threads used on the later carbs that have the inlet fitting with the white nylon seal), I can repair the threads. I have all the equipment to correctly thread the carb and install the stainless steel insert. Drop me an e-mail for detailed info and cost on the service.
Lars
V8FastCars@msn.com
Lars
V8FastCars@msn.com
Tech Contributor
Joined: Aug 1999
Posts: 14,380
Likes: 6,390
From: At my Bar drinking and wrenching in Lafayette Colorado
glen -
I have only invested in the tooling to do the 7/8-20 early threads. As one of the guys noted above, the tooling is pretty expensive, and the 1"-20 threads very seldom strip. So I can only do the early threads.
To help get a little longer life out of your threads, I always recommend to people that they lubricate the threads on the inlet fitting (the big nut) with some LubriPlate or wheel bearing grease prior to installing it. The lube allows you to achieve good torque on the nut with little effort and no galling of the threads - you can just cinch it up lightly and it will seal. This helps prevent the classic thread strip-out.
Lars
I have only invested in the tooling to do the 7/8-20 early threads. As one of the guys noted above, the tooling is pretty expensive, and the 1"-20 threads very seldom strip. So I can only do the early threads.
To help get a little longer life out of your threads, I always recommend to people that they lubricate the threads on the inlet fitting (the big nut) with some LubriPlate or wheel bearing grease prior to installing it. The lube allows you to achieve good torque on the nut with little effort and no galling of the threads - you can just cinch it up lightly and it will seal. This helps prevent the classic thread strip-out.
Lars
Melting Slicks
Joined: Apr 1999
Posts: 2,010
Likes: 3
From: Moon Twp. PA USA
Originally Posted by lars
glen -
I have only invested in the tooling to do the 7/8-20 early threads. As one of the guys noted above, the tooling is pretty expensive, and the 1"-20 threads very seldom strip. So I can only do the early threads.
To help get a little longer life out of your threads, I always recommend to people that they lubricate the threads on the inlet fitting (the big nut) with some LubriPlate or wheel bearing grease prior to installing it. The lube allows you to achieve good torque on the nut with little effort and no galling of the threads - you can just cinch it up lightly and it will seal. This helps prevent the classic thread strip-out.
Lars
I have only invested in the tooling to do the 7/8-20 early threads. As one of the guys noted above, the tooling is pretty expensive, and the 1"-20 threads very seldom strip. So I can only do the early threads.
To help get a little longer life out of your threads, I always recommend to people that they lubricate the threads on the inlet fitting (the big nut) with some LubriPlate or wheel bearing grease prior to installing it. The lube allows you to achieve good torque on the nut with little effort and no galling of the threads - you can just cinch it up lightly and it will seal. This helps prevent the classic thread strip-out.
Lars
Team Owner
Joined: Sep 2003
Posts: 88,393
Likes: 2
From: eville in
Originally Posted by 00fxd
There used to a company called "Thexton" that sold repair kits for those, available through most auto parts stores. Also BlueStreak/Hygrade in their carb kit catalogue.
Melting Slicks
Joined: May 2002
Posts: 2,225
Likes: 44
From: Penticton B.C. Canada
Originally Posted by comp
that the one in the DIY section ????