I have spent the last hour and a half searching threads and posts to try and find what the proper clearance should be between the cylinder walls and the piston.
the book does not say a word about what it should be.
I did take the spec bore diameter from the book, for both the major and the minor piston diameters and the major difference was .006 and on the minor difference was .008. The shop I took the block and pistons too said that they would like an actual spec number, and, I would not want a piston too tight, nor, a piston too loose.
I thought that somewhere out there on the internet there would be a generalized chart for a two stroke water cooled engine that would list a chart that would show x amount of clearance for each inch, or MM of bore.
this is on a 1992 70 HP Force engine.
YUP it is the same engine. My son decided to do a rebuild on this engine, run it for a few years, until He gets a little more financially situated then He wants to go with a 75 horse four stroke of some manor brand.
can anyone please help to clear up these doubts.
the book does not say a word about what it should be.
I did take the spec bore diameter from the book, for both the major and the minor piston diameters and the major difference was .006 and on the minor difference was .008. The shop I took the block and pistons too said that they would like an actual spec number, and, I would not want a piston too tight, nor, a piston too loose.
I thought that somewhere out there on the internet there would be a generalized chart for a two stroke water cooled engine that would list a chart that would show x amount of clearance for each inch, or MM of bore.
this is on a 1992 70 HP Force engine.
YUP it is the same engine. My son decided to do a rebuild on this engine, run it for a few years, until He gets a little more financially situated then He wants to go with a 75 horse four stroke of some manor brand.
can anyone please help to clear up these doubts.
