JD 650 2T80UJ Yanmar

   / JD 650 2T80UJ Yanmar #1  

ckff10

New member
Joined
Apr 10, 2014
Messages
1
Location
chelsea mi. 48118
Tractor
john deere 650
Hello new to this site, I am replacing rebuilding a 2T80 yanmar. did not mark pistons previous to removal. does it matter the direction of install?
 
   / JD 650 2T80UJ Yanmar #2  
On most engines yes. The wrist pin is off set just a tiny bit to dampen piston slap. A John Deere service manual should tell you how to figure it out. Some online are available a down loads so you wouldn't have to wait very long for the manual.
 
   / JD 650 2T80UJ Yanmar #3  
I have a PDF of the TEch manual you're welcome to, shoot me your email

Joe
 

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