S40 01 Exhaust Manifold Gasket Replacement

[Stilltrying2]

Hi Guys,

Well - I survived replacing the PCV Oil Trap / Breather Box system - new hoses and all. Now I have a damaged #4 Cylinder Exhaust Manifold Gasket. Probably due to a leaking Camshaft Oil seal, recently replaced with no new oil leaks.

I would be grateful for tips on not screwing up re:
** Breaking studs, seized nuts - what to spray on them to loosen ??
** How to get the exhaust manifold off - been told I may have to pry it off and don't want to damage the ?block?
** Can I just loosen the nuts and pull it back enough to put on the new gaskets - or do I have to remove other parts like the ? turbo drain tubes?

You can tell I am a newbie, but I did the above two jobs so I have a little experience.

Many thanks in advance for your help.

Tom