View Single Post
Old 05-09-2022, 06:14 PM   #7
nkaminar
Senior Member
 
nkaminar's Avatar
 
Join Date: Jan 2012
Location: Western North Carolina
Posts: 6,852
Default Re: Reflecting cylinder walls

The cylinders look great with the exception of a little bit of corrosion on #2. Cast iron has a unique property in that it takes on a mirror shine after being broken in. The graphite and iron produce the shine. You only need to hone the cylinders if you are going to put new rings in and only because it helps the rings to seat.

Run the pistons up near the top of the cylinder and then try to move the pistons front to back and side to side. There should be no perceptible movement or only a very tiny amount. If you get a large movement then the cylinders and/or pistons are worn.

Put some light oil like 3-in-one or sewing machine oil on top of the pistons and watch to see if it leaks down past the rings. You only need a small amount. It is leaks down within an hour or two then you may need new rings, and if new rings then you need to hone the cylinders. In the old days it was typical to replace the rings and lap the valves frequently and maybe take up the bearings at the same time. It was sort of a maintenance thing. If the engine was making blue smoke and had a lot of blowby then that would also indicate new rings are needed.
__________________
A is for apple, green as the sky.
Step on the gas, for tomorrow I die.
Forget the brakes, they really don't work.
The clutch always sticks, and starts with a jerk.
My car grows red hair, and flies through the air.
Driving's a blast, a blast from the past.

Last edited by nkaminar; 05-09-2022 at 06:25 PM.
nkaminar is offline   Reply With Quote