Last week, my chain tensioner decided to come loose and removed most of the spokes on my rear wheel. Since my bike is down for now, I decided to rebuild the entire bike. When I took the cylinder head off, I noticed that there are many deep scratches on the gasket surface. What would be the best way to remove these? I was planning to sand the head anyways, but should I machine it instead?
Scratched head gasket surface
- Thread starter bygolly
- Start date
professor
Active Member
tape some 240 grit sandpaper to a flat surface (like a steel plate, machined table saw top, granite measuring block, real thick workbench top...). Sand around and around while turning the part.
I flattened out a warped VW pressure plate using this method and 80 grit paper.
I flattened out a warped VW pressure plate using this method and 80 grit paper.
Al.Fisherman
Active Member
I mill both the cylinder and head on every build. I do it as it comes out of the box. I just happen to have a roll of DA paper. I stick a sheet to my garage window and go to town. Remove as little as possible to get a good surface. If too much is taken off you may need to double up on the head gasket to keep the piston from hitting the spark plug.
