Kubota vs John Deere x570

   / Kubota vs John Deere x570 #21  
Yeah..sounds like you probably got lucky. I don't see any damage to the top of the piston, but of course won't know anything till I get in there. Have never done any major work on the Cub so it's been a case of taking many pictures, etc. as I go along. There is this Custom Lawn and Garden outfit that does rebuilt short blocks, but I think I'd rather go with this local guy - avoids the core charge for one thing - and he says he has blocks for mine. Would love to get away with just replacing a few items. I wonder...my piston also is exactly half way in the cylinder. I started to push it down (by hand) just to see if it moved but the one guy I talked to said not to push it down too far since, of course, it'll wind up down in the crankcase. No idea either what damage may have been done to the crank, etc.

Either way I really would need new rings...or else the blow-by will just continue. Assume the rings are probably pretty well worn out.
 
   / Kubota vs John Deere x570 #22  
Sounds like the "local guy" can help you best you if you are not comfortable with a rebuild.



On the other hand, these engines are very simple to work on...

This Haynes book may be helpful if you have not done this type of work before:

Small Engine Repair: 5.5 HP Thru 20 HP Four Stroke Engines (Haynes TECHBOOK) 1st Edition

( ISBN-10: 1563922983)

Pretty easy to find engine blocks, pistons, connecting rods and most other parts on the eBay for Kohler 12hp engine.
 

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