Here's a look at an M112 cylinder wall that's been damaged by sticking oil rings. All six cylinders look pretty much the same. We replaced the engine block, pistons, and rings. The crankshaft and rods will be re-used, although all bearings will be replaced.

We're re-ringing another M112 as well. It had the same oil consumption as the engine pictured here, but the cylinder walls were fine.