I changed the two sump gaskets on my Cav gsi 16valve yesterday.
I did it up quite tight but it is leaking like a sieve today.
I brought one cheap gasket from a parts supplier and one good one from Vauxhall - £13 difference. The reason was because i thought it would only need one.
How tight should they be and shall i use Gasket sealant? The haynes manual says to use sealant on the gasket that joins the cylinder block but not on the bottom one. I have the good gasket on the bottom one - Shall i get another good one for the top and use sealant?