My blower today lost all compression, at least that's what it felt like as it shut down, then tried to start it and it would just freewheel... The spark plug checked out fine, nothing wrong there, wasn't loose. So I pulled the valve cover off, figuring if a rocker had come loose and valves were open. Nope, all that looked good, they still moved properly when turning the engine. Pulled the cylinder head off next, figuring if the gasket was leaking. And here is where it gets tricky, tricky... When turning the engine, the piston no longer moves up and down on its own, thou I can still push it down manually, then when cranking the engine it pushes the piston up a bit, and there it stays. Now... Before I dismount this engine so I can tear into it, does anyone think it would be easier to just buy a new blower, or is it worth it, for $900 cost, to tear it apart? Everything has to be taken off, starting with the shroud, I may not have to pull the impeller but the engine has to come off the frame... Likely looking at 3-4 maybe 5-6 hours until I can get a good peek inside... Just wondering what I should do... So if anyone has ever torn one apart, some feedback would likely be appreciated.