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Old 03-14-2007, 06:53 PM
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quadrajet repair

i need some advice. the fuel inlet fitting on my 74 vette is loose and will not
tighten. the carb is a quadrajet. what is the best way that i can repair
this fitting myself.
thanks
stan g

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Old 03-14-2007, 07:08 PM
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the threads in the housing are probably stripped. The best you can likely do, is remove the filter and epoxy or JB Weld the fitting into it. Use an inline filter.
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Old 03-14-2007, 07:19 PM
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You might try a couple of wraps of teflon tape on the threads first. There is presently another thread on this forum involving a fuel cell leak and JB Weld has been said to not work so well in the presence of gasoline.

I've used JB in the past, but not with gasoline. I would have thought it would work ok, but some of the other guys say no.
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Old 03-15-2007, 01:35 AM
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Doc here,

IF you go the JB weld route, BE SURE to remove the in carb filter BEFORE you forever more seal it up...or your Q~jet will have a very short life (until it clogs up and you can't change it! )

Add an in-line filter JUST after the fitting , which will solve 2 problems..you will have an easy way to remove the fuel line in future and not having to worry about stripping the carb inlet ever again..

You could also pull the air-horn and (if you have the proper tap) tap the inlet next size up or slightly oversize..but you will need an adapter nipple for it.

Doc
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Old 03-15-2007, 03:33 AM
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There's a fix

I've been taught quads by the best rebuilder in central Tenn. There is a filter housing that is slightly oversized for repairing worn out threads in the carb body. A good parts store should be able to get you one. I'm not in the business anymore but if I can find a source I'll post it soon as I can.
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Old 03-15-2007, 07:51 AM
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qjet repair

thanks, the carb has an outside filter. i thinking about the jb route but
think maybe i will call my napa store to see if he can find something less
permanent. i do appreciate the help, i see now that i can go several ways
on the repair.
stan g
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Old 03-15-2007, 01:07 PM
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This is a common problem and several vendors sell replacement fittings with oversized self-tapping threads. The Help line sold at most auto parts stores carries one, but they will likely need to order it. Since the gasket seals on the shoulder, the threads don't leak. Your best bet is to use this repair fitting, epoxy it in place, and install an inline filter elsewhere in the line.
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Old 03-15-2007, 01:14 PM
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Good Qjet Info Here




http://www.sparkyscarbs.com/






Mustangsaly
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Old 03-15-2007, 04:21 PM
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Quote:
Originally Posted by stan g
thanks, the carb has an outside filter. i thinking about the jb route but
think maybe i will call my napa store to see if he can find something less
permanent. i do appreciate the help, i see now that i can go several ways
on the repair.
stan g

Doc here,

Just to clarify..Q~jet has about a "dime sized " filter and spring UNDER the inlet knuckle nut..wanted to be sure you knew that before it forever got sealed up!

Items 54, 55, 56, and 57...



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Old 03-15-2007, 05:57 PM
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qjet repair

thanks guys, i appreciate the advice. this was my first post and its good
to know that everyone is helpful and knowledgeable.
stan g
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Old 03-15-2007, 11:42 PM
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Quadrajet Repair

If you choose to buy the self-tapping oversize fitting be sure to remove it after first installing. Then with top off carb and needle out of seat blow through to remove small metal filings left from self tap. Then re-install and do not overtighten. Sometimes just screwing them in will cut pot metal loose. Also be sure to start very straight if you want a seal. Just another been there done that person.
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