Cylinder Bore After 28 Years
Posted: Sun May 02, 2021 9:25 am
Out of curiosity I took a cylinder head cover off to see what the bore looked like. The locomotive went on the road in 1992. I don't think anyone has looked inside since they were assembled. The cylinders were fabricated using centrifugal cast iron pipe for the cylinder bore. The piston rings are overlapping iron rings from a hydraulic cylinder rebuild kit.
The bore has a glossy green color. It looks like faint bit of corrosion in the bore.
A few score marks and I am not sure what the white mark was from. You cannot feel them with your finger. Comparing the un-swept area of the bore with the center there is .002" of wear.
I found a bit of carbon on the cylinder cover. I expected to find a gasket of some kind between the cylinder and cylinder head. There was just a thin coat of anti-seize.
The bore has a glossy green color. It looks like faint bit of corrosion in the bore.
A few score marks and I am not sure what the white mark was from. You cannot feel them with your finger. Comparing the un-swept area of the bore with the center there is .002" of wear.
I found a bit of carbon on the cylinder cover. I expected to find a gasket of some kind between the cylinder and cylinder head. There was just a thin coat of anti-seize.