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.

We're sorry, but your engine has been out of production long enough that parts specific to it are no longer available through us or O.S. Max, in Japan. You'll have to check with the hobby retailers who specialize in obtaining old parts for the engine collector market. Check the swap-shop areas here, on RCU, and check the classified ads in the back of the R/C model magazines. We hope you'll be able to locate the part you need.

buckerneer

[email protected]

Frank will provide you with a ring at a reasonable price. Send him an email.

Denis

Thank you very much

I did e-mail Frank and waiting for reply.

I take it that frank is an engine expert?

Steph

Frank can be reached at [email protected] or 1-505-327-0696 ( 6pm to 9pm mst. weekdays) and the following address:
Frank Bowman
1211 N. Allen
Farmington, NM. 87401


Another source for rings:
E-mail[email protected]
or phone: 410-398-7340
or snail mail:

Otto Gas Engine Works
2167 Blue Ball Rd
Elkton MD 21921-3330