Reviving an MC-91 engine

[Michael Drechnowicz]

I am working on an MC-91A engine that has been sitting on a shelf for many years, at least 6 but probably longer. Looking thru the exhaust port, the cylinder looks really good and the engine has good compression. From the research I have done, a major concern about using an engine that has been sitting is that the bearings on the piston pin could be stuck. Is there any way to ensure they are free or to free them up short of removing the piston and replacing the bearings. Any suggestions would be greatly appreciated.

Thanks,

Michael