Over easter I took my hammer up to a lake for some hammer time. Long story short it ended up throwing a rod. I took the engine apart to inspect the damage. It will need a new piston and liner, new conrod and new front and rear bearings. I checked tower and these bits come to $50. I was thinking about a new engine and I saw the O.S 15 and 18 marine engines. These were $130ish and $160ish.
Has anyone used a different engine in their hammer? Has anyone used the O.S engines? Is it worth changing engines?