Originally Posted by gskurka

I had to pull the head on my 1991 350SD (200k mi.) due to a broken exhaust manifold stud. I cleaned the head and block with an abrasive pad and some fine emery paper. What is the recommended surface finish on the head and cylinder block? I have the MB gasket set and new head bolts. Can anyone offer some guidelines on the head re-installation?

Should I replace the valve guide seals? Lap the valves? Check for valve guide wear? What's the best way to measure the piston heights (for bent rods) without getting the IP out of time?

Any advise is greatly appreciated.

Greg