Bob -
Steel studs should not strip in the manifold which is only cast iron. The
Manifold threads are probably stripped.
Best way to fix it is with a helicoil kit....
Alan
'52 A90
'53 BN1
'59 Jag Mk IX
'64 BJ8
On Mon, Apr 19, 2010 at 8:58 AM, Bob Spidell <bspidell@comcast.net> wrote:
> I think I've finally isolated the original cause of a series of blown
> exhaust flange gaskets: two of the three studs on one manifold were weak and
> would not hold tension. I finally ended up stripping them while trying to
> apply a reasonable torqe (20 ft-lbs). Anyway, I managed to extract the
> studs and tried installing 3 new ones I happened to have and all of them
> stripped! I didn't like the looks of them before I put them in--they looked
> to be of a very light and soft steel (and they were a good 1/8"
> longer--makes getting the downpipes off and on even more difficult). They
> were from Moss.
>
> Anyone have a good source for solid, heavy steel studs? I see Moss has a
> stainless kit--anyone tried those? I don't believe that stainless is
> necessarily stronger--in fact, it may be more brittle--but maybe they're
> better made. 'Standard' studs--the kind you can get at the hardware
> store--are coarse thread on one end and fine on the other. I need fine on
> both ends.
>
> Thanks for listening.
>
> Bob
>
> --
> *******************************************************************
> Bob Spidell San Jose, CA bspidell@comcast.net
>
> *******************************************************************
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