camshaft

[Dave]

need to remove the vac pump and cam pulley.

also replace cam seal.

also imo worth once cam removed turning crank back half turn until you replace the cam and time the cam up...otherwise you may push a valve into a piston!

Yeh defo make sure you do this, else you'll find because the cam could be in any position that you end up bolting it down into the valves/pistons. You'll more than likely snap the cam first though :p valves are stupidly hard to bend when they're sat vertically, normally only done with starter/inertia, but yeh make sure you rotate the motor back 90 degrees to clear valves and then figure out position later.