I like this one. I'll try this too. Still trying to find time for this. Lots of fires in the world today that need putting out.Start motor and put a infrared thermo on exhaust pipes and see if big diff. Can have fire but have a valve lift problem with no compression. Also you can spray water on pipes to see if same temp.
Update? If a valve was sticking open you can normally tell by looking at the rocker arms.K - Valve clearances were fine ( ish ). I put the compression tester on the cylinder - 150 PSI on the functioning one, Zero ( 0 ) on the non-functioning one. I guess I'm tearing it down.
Good opportunity to teach my 12 year old how an engine works. Can't let her get too much taller without some basic understanding.
For pulling the flywheel, I would use the pry and hammer method.@Trentofdestiny - Thanks for following up. I've been meaning to get back to this, but so many projects and so much financial drama surrounding Covid-19.......
The valves looked okay. They are moving and appear to be sealing up the cylinder head as designed.
The oil is super liquidy and grey. I suspect the piston rings, but don't have a flywheel puller ( which is where I got stopped and haven't restarted ). I'm also going to need a full rebuild kit to get the engine sealed up.
Any advice on a decent flywheel puller and where to get the rebuild kit for this engine?
I believe the piston moves ( I'll check when I get back ), but it seems to me that the fuel is getting "compressed" into the crank case which is causing the oil to get a thin grey liquid consistency.For pulling the flywheel, I would use the pry and hammer method.
As for piston rings, I doubt they are the cause. I would hazard a guess you have a broken connecting rod. Does the piston move?
Sent from my iPhone using Tapatalk
Low compression could be caused by rings but you have absolutely none so it would have to be a hole in the piston or the rings are just missing (obviously they are not).I believe the piston moves ( I'll check when I get back ), but it seems to me that the fuel is getting "compressed" into the crank case which is causing the oil to get a thin grey liquid consistency.
Any other ideas ( beyond piston rings ) as to how the fuel is getting from the piston to the crank case?
Dang! I'm sorry to hear that. You can fix it, but taking it apart is probably going to be more of just an educational journey. Aluminum pieces big and small everywhere, us mechanics call that "glitter in the oil". May cause something else to fail after repair because of inadequate cleaning inside the engine.Okay - When I turn the flywheel there is no motion on the piston. So I guess I take it all the way down to see how bad the damage inside the crank case is.