Originally Posted by Reginald
The OS H-60 RC dates from 1967
I was rather curious myself so I quickly dismantled the engine and here are some pictures. Still very oily but no real visible dirt ! The previous owner did take care of his engines. Bronze conrods. One has to look really well but in the last picture you can see a hair-size line, that is where both parts of the rod do join at the bottom, a very unusual method. Very well made indeed. And very precise fittings all over, no sloppy fits anywhere. I was told that the builder was a precision-fitter at Republic and it shows.