The engine is up North ready to go under the knife, but prior to this when it was stripped down, it had a broken piston ring, extensive blowback on the other cylinder bore a piston crown running hot, and a connecting rod hitting the crank web. The rear crankshaft web had been pulled apart slightly, and it looked like some metal component had caused this, because there was impact damage to the middle web between the web and rod.

The ring that was broken was still in the piston groove, and the bits sort of added up when placed together. On inspecting the crankcase today, as I was removing the oil pump, but prior to removing the front bearing I saw these metallic components within.









I’ll need to check the pistons and cylinders more closely and try and ascertain what this stuff is!