I just broke the piston ring while cleaning my (OS max 40 sr). I can usually get my part numbers from the OS website. But I have a feeling this engine is from the ice age and can't get any info on it.

I would not make a big fuss if this engine wasn't pratically new. The plane was built to display in a sports bar and they left the carb. open for about 12 or more years. Everything is jammed.

Help.