Reply To: Basic piston ring questions

[billw]

I have an 18 Johnson that had (actually still HAS) worn cylinders. New, standard rings still had way to much end gap. I happened on to some .020″ over-size rings. I figured it was worth a try; so I spent a little time with a file and made them fit the worn cylinder properly, making sure the ends didn’t actual touch at the bottom of the stroke. It now runs like the wind, with very good compression, power and no unusual noises that I can hear……Maybe something similar can be done with a little engine?

Long live American manufacturing!