ringed piston installation

[R-4-L]

I never had to open/inspect a ringed engine before, but when I opened up my OS.50-Hyper to inspect its bearings, when reinstalling I was completely stuck on refitting the piston back with the sleeve!

the ring is blocking the way, after several attempts to compress the ring, i broke the ring! and scratched the piston. its my fault i didn't ask for guidance. but there you go! i'll have to order piston and ring.

is there a special way on installing the ringed-piston without doing harm to it? is there a special tool? please help!

Thanks,

[Bonsai]

Yhea Ali you call me and I will tell you what you did wrong.. there is a pin in the ring groove and you must align it with the piston ring ..then it will compress enought by hand to install it...
Dean

[alexander]

The piston is directional so the ring end gap will not fetch on a port. usually the arrow if so marked on the piston crown points to the exhaust but no always

stephen

[R-4-L]

hmm, i'll check on that now, thanks stephen