Hilicoil ate aluminum thread! Need help.

[Jim Green]

--- Konstantin Bogach
<konstantin.bogach at morganstanley.com> wrote:
> Good people,
>
> My first experience with hilicoils turns to be not
> good.  I restored 6mm
> thread in aluminum (oil filter bracket, turbo oil
> supply flange), tried
> to torque the bolt and... bolt is eaten, thread in
> aluminum is eaten by
> helicoil.  I broke tang with hammer and rod.
> Visually was clear, bolt
> easily went in through helicoil all the way when I
> tried it.  Until I
> have a clue what happened I don't use helicol in
> aluminum any more.
> A problem grew into bigger problem.  Now I have
> bigger hole which might
> be OK for 8mm thread. Upper part of the hole is
> bigger then should be
> for 8mm tap (7.5 mm) but lower part (bigger than
> half)  is good. But I
> can not find stepped studs.  Dealer does not have it
> (at least one guy
> from parts told me that). Stores I called don't have
> them.  Any advice
> how to fix it or where to get 8 mm to 6mm studs?
>
> I appreciate your help.
>
> Konstantin Bogach.
>

You may be better off replacing the whole oil filter
bracket piece.  I bet you could get one for pretty
cheep form a pull n save lot, or a lister?

=====
Jim Green
'89 90tq EFI
http://www.geocities.com/jeg1976/car_home.html

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