Cylinder honing & piston clearance?
Posted August 15, 2007 - 08:58 AM
Posted August 15, 2007 - 10:42 AM
Posted August 15, 2007 - 05:28 PM
Posted August 16, 2007 - 08:40 AM
Posted August 16, 2007 - 11:45 PM
I just put in a 53.5mm piston with 0.0015 clearance and it felt a little loose Those small diameter pistons can be pretty tight compared to large dia. pistons.
Thanks, Tygen! I assume that .0015 clearance number you mention is in inches, not millimeters? A measurement of .001" = .03 mm. From what I've found out a common clearance for this size bore is .06mm or .002". Apparently it depends a lot on what the engine is to be used for, what the cyliner is made of, whether it has a liner and what the piston is made of. From what I could figure out with the answers for my setup the .002"/.06mm is at least safe, if not a very slight overkill.
Posted August 17, 2007 - 08:53 AM
Posted August 17, 2007 - 09:28 AM
Whole lot of fun honing a 52.25mm cylinder all the way out to 53.0mm with a flat stone hone hah! Pa-a-atience.