I recently removed the cylinder head of my '88 BMW 325i to replace the gasket. I have everything taken care of except the surface of the block where it meets the gasket it grimey and i havn't been able to scrub it off or find any chemicals to loosen it up. Is it ok to sand the surface to get it clean? If so is there anything extra i will have to to to make the gasket seal because of this?
I think if you introduce yourself in the appropriate section you'll have a better chance of getting some help. It's the best way for all new members to start.
you can buy a air tool called a gasket grinder but it air is no avaliable use a gasket remover you can buy them from most automotive stores it like a razor. note also make sure you clean it up good. and also blow out the head bolt holes and get all the gasket bits off the head awell as the block.