993 rebuilt top end how long to fix leak?

[berni29]

Hi There

I rebuilt my 993 top end and seem to have oil leaks from the cylinder bases. I must have got the Wrightwood green viton gaskets twisted, or else they did not like the smear of hylomar blue I used.

Assuming I have no other avenue but to drop the engine, what is the absolute minimum of disassembly I will need to undertake the gasket change? Can I get the cylinders heads and cam towers off along with the cams and gear all assembled and then back onto the pistons in one go?

Thanks for any advice!

Berni