Did not think they put cork gasket on turbos???? If you want to stop the leak then bin the cork one and go and get a rubber one ,these are fitted to the later ones and DON'T OVERTIGHTEN THE BOLTS as this will crack the sump!
Its best to use some RTV sealant on the gaskets.Very liberal amounts on all surfaces and than tighten the sump down in order...almost like ya would when tightening the cylinder head down.Do not over tighten though!!There is a torque figure out there somewhere
> Putting it back on the cally today. The gaskets vauxhall have
> supplied are the cork ones.
for a Calibra (turbo or not) you put both gaskets on DRY.
No selant is required, just follow Calibra Haynes book.
The only time selant is used is for the end crank 'cap' that holds down the oil seal (flywheel end). This block of metal not only bolts down but also RVT selant is used to stop oil escaping.
But if thats hasn't been removed (ie no engine rebuild) or it has fallen out while the gasket was removed, then there is no need for it.
The gasket on my C20LET was black rubber with lots of little metal flat circules in it, which fell out. there were 2 gaskets as well.