Pu-5008/u Iron Horse generator unit, Johnson Engine

[gonefarwest]

Thanks, I updated my profile to include my location,

I did pretty well what you are suggesting me. The oil seal on this engine is not standard. The inside diameter hole is 7/8" and the outside is 1" and 1/16" which only leaves 3/32" space between the shaft and the outer cage for the seal. This seal is all rubber (or rubber like material) with no metal into it. It is like a square o-ring with an inside lip. It is hold in place with a metal snap ring.

As for the rings their profile is rectangular. These rings have 5 sides (4 sides that are 90 degrees to each other and the fift one that cuts one of the inside corner). The bottom of piston groove where the rings sit are not at 90 degrees. I went to the auto part with my rings and seal and they couldn't help me. I found that Hasting makes or used to make a set but I can't get them here. The Hasting number is 278.

I also checked the internet and I did not find a supplier.

I live in a small town of 3000 people and the next one is 125 miles away which make it harder.