Re: Thread repair

["Obie Fayth" <bibendum59@domain.elided>]

Zamani,
    I had the same thing happen on my 164 and used the Permatex kit to fix 
it. The repair has held up fine so far. I don't know how it would fare if 
you are removing and replacing the bolt fairly often, but for smaller 
lightly torqued applications like this it works wonderfully.

    For those who haven't used it before, the Permatex thread repair kit 
consists of some two part epoxy (iirc) and a release agent. You mix up some 
of the epoxy and put it in the hole with the damaged threads, then you coat 
the bolt with the release agent and thread the bolt into the hole. The 
release agent is needed to prevent the epoxy from bonding to the bolt. After 
the epoxy has dried you can unscrew the bolt. When you thread the bolt into 
the hole some of the epoxy mixture will invariably get forced out. In some 
applications this will not matter, but for the cam covers or any other 
situation where a gasket will be effected this can be a problem. The 
solution is to let the epoxy start to set up and then use a sharp razor 
blade or knife to trim the epoxy flush with the sealing surface.

-Obie
Tacoma, Wa
assorted Alfas



> Date: Thu, 20 Feb 2003 01:35:42 -0800 (PST)
> From: Zamani Zambri <zzambrimail@domain.elided>
> Subject: Thread repair
>
> Hi All,
>
> One of my cam cover bolt has a marginal thread hole. It gets tight, but
> not tight enough. Is it ok, in this case, to go with the Permatex
> thread repair mix? I would like to go with a heli coil fix, but 7mm X
> 1mm repair kit is not easy to find. Cheapest one I could find was about
> $55+. I am inclined to spend the money on a tap and die set and go with
> an 8mm bolt instead. Or use that permatex stuff...
>
> Opinions?
>
> Thanks.
>
> Zamani

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