I've got my R90/6 top end off, pistons are off and going to replace the rings. Right now, I've soaked the pistons and along with scotch bright,WD-40, serious elbow grease I'll eventually get the tops of the pistons clean, down to shiny metal. The heads are a different situation...It's going to be a bear to clean them. Couple questions, please.
1. Does all the carbon need to be removed from the heads or just the potential hot spots?
2. Is it possible to use walnut shells or a similar media to blast? Is a drill wire brush attachment too severe?
3. Do you know of a way that will work, I can do?..
Any suggestions will be greatly appreciated....thank you..Mike
1. Does all the carbon need to be removed from the heads or just the potential hot spots?
2. Is it possible to use walnut shells or a similar media to blast? Is a drill wire brush attachment too severe?
3. Do you know of a way that will work, I can do?..
Any suggestions will be greatly appreciated....thank you..Mike