I've seen some cars fitted with 'cheese headed screws'
for the sealing blocks. This limits the amount of
torque that can be applied.
BTW, I think these are made of pot metal, a zinc
alloy, not aluminum.
Carter
--- Cwn74@aol.com wrote:
>
> I suspect what you saw on your bolt was not a
> helicoil, but the aluminum of
> the threads in the block plate you stripped out.
> Been there, done that...
>
> I think the bolts that go into the aluminum plates
> in the front and back of
> the engine are different than those that go into the
> cast iron block. Just a
> vague remembrance, but they may be shorter so that
> they don't hit/bottom on
> the main bearing cap which would cause the installer
> to tighten more and
> strip out the threads....
>
> Good luck!
> Clark
>
> "If it's not fun, why do it?" Ben & Jerry
> Clark W. Nicholls
> CWNicholls@aol.com
> http://members.aol.com/CWNicholls
> fax: 419-844-7564 (yes, 419)
> phone: 413-243-3433
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