Conmpresssion test results

[Arthur Dent]

Dry = 115 105 110 110
Wet = 130 115 130 150

This is my '57 Smoky. It's a cheap compression gauge, first time I have used it.

[Eugene]

Good results. Results are a bit uneven, the #2 cylinder's compression didn't come up very much in the wet test. I would just continue with the Sea Foam treatment and work the tractor hard.

[Bob McCarty]

Is it possible to get a 150 reading on a Cub (cylinder #4-wet)?

Bob

[Arthur Dent]

Yeah, I thought that 150 was a little high there Bob. Cheap gauge set I guess.

[tnestell]

Is it possible to get a 150 reading on a Cub (cylinder #4-wet)?

Bob

I have an engine that has been rebuilt many times. Decking the block and milling the head with each rebuilt has increased compression with .060 over pistons close to that. It can also be felt when pulling the engine through with a crank.

[Arthur Dent]

I changed the oil and ran the tractor around the farm quite a bit yesterday, I'll take another set of readings in a day or two (assuming this rain lets up) and see if I get similar results.
Of course I don't expect the oil change to have made any difference, just checking for repeatability of the results.