On Aug 19, 2004, at 10:18 PM, Steven Stegmann wrote:
John,
I've never done it but have heard of it. Seems like
I've seen that in some race engines too. It might cut
down on the friction???
Steve
Steve,
No, it's the other way around. You do the knurling to pistons whose
skirts have worn excessively. So, the bumps created by the knurling now
contact the cylinder wall.