huh? what kind of car, yr etc...
and what does this mean? "
repair with polishing the exhaust pipe mask it hold just 10 miles, and it
blew up again!"
the proper steps to follow would be to remove the old gasket, scrap the
surface smooth, and replace with a new gasket, tighten all bolts to the
proper torque, in the proper sequence, and your good to go.

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> Hi there,
>
[quoted text clipped - 9 lines]
> Gerry
> Mauritius