What should the cylinder sleeve look like?
#1
What should the cylinder sleeve look like?
As I try to resurrect an engine from the dead, I'm wondering if I need to somehow hone the cylinder. The inside is baby bottom smooth-almost glass smooth with no apparent scores. Maybe this would be called glazed? It had thrown the retainers, and had a busted ring. There are dark 'streaks' running up and down in places. I've ordered new piston and ring (ST G4500). Ya, I bought it used and trying not to spend a fortune on parts. Bill
#3
Member
RE: What should the cylinder sleeve look like?
You re right, you have to break the glaze - or the new ring will never seat. I use a brake cylinder hone picked up at the local AutoZone for (I think) around $20. I have picked up old engine restoration as a tangent hobby and so it was an easily justified purchase. Anyhow about 15 minutes with the hone shuld genrate a nice fine cross-hatch pattern on the cylinder and the engine will break in like it was brand new...
#4
My Feedback: (24)
RE: What should the cylinder sleeve look like?
Jim is right.
One thing you can do to make it really easy is go to an auto parts store and ask for a "brake cylinder hone". These are for honing the little cylinders in hydraulic drum brakes and will be small enough to fit inside your model engine cylinder.
Put the hone in a cordless or corded electric drill motor. Now use plenty of oil, and while spinng at a slow speed, move the hone in the cylinder up and down at a steady but medium speed. Remove frequently and check for "cross=hatch" the little pattern of a properly honed cylinder. When you see it, flush the cylinder out and remove all traces of grit and then coat it with oil and assemble your engine.
One thing you can do to make it really easy is go to an auto parts store and ask for a "brake cylinder hone". These are for honing the little cylinders in hydraulic drum brakes and will be small enough to fit inside your model engine cylinder.
Put the hone in a cordless or corded electric drill motor. Now use plenty of oil, and while spinng at a slow speed, move the hone in the cylinder up and down at a steady but medium speed. Remove frequently and check for "cross=hatch" the little pattern of a properly honed cylinder. When you see it, flush the cylinder out and remove all traces of grit and then coat it with oil and assemble your engine.