cylinder sleeve honing

[ziemerj]

I need to hone out the cylinder sleeves in my 560 and I'm wondering which grit I should use I have two sleeves that are scored more than the rest I plan on using a 120 grit to get those out. What grit should I use to finish? Thanks

 

[Janicholson]

Removing deep scratches with a straight hone like a Sunnen style hone will probably remove enough material to require fitting the piston, and using oversized rings. Removing scratches with a bead style glaze breaker will distort the cylindricity of the sleeve, and probably ruin it. Why not put two sleeves in the engine and make it correct. If the scratches are very shallow, a beed breaker used modestly might be fine. a 350 grit finish bead breaker would be OK. Jim

 

[rustyfarmall]

I agree. A cylinder, or sleeve, that is scored needs to be replaced.