Yanmar (JD) engine question

   / Yanmar (JD) engine question #1  

prosperity

Platinum Member
Joined
Aug 2, 2000
Messages
689
Location
North Central Pennsylvania
Tractor
JD 2520
Hi folks, looking for an informed opinion from some of you mechanics out there. I have a JD 332 (garden tractor) with a Yanmar 3 cylinder 16hp diesel. After working it pretty hard mowing in some heavy stuff, I'm getting quite a bit of blow-by (through the breather tube coming from the valve cover). I've talked to a couple local mechanics, and their concensus is that I have a stuck compression ring. The tractor uses no oil at all, and runs great. According to the dealer I bought it from, the top end of the engine was done before I bought it (valves adjusted, new injectors, etc). Before I go through a tear down, I'd like some of your opinions. Also, if I do tear it down, how important is it to remove the crank and check/replace the crank bearings. I am told that I can get my pistons out without removing the engine from the tractor.
 

Tractor & Equipment Auctions

UNUSED 20PCS Industrial Polyester Lifting Straps (A53117)
UNUSED 20PCS...
(INOP) 2015 FORD F-250XL SUPER DUTY TRUCK (A51406)
(INOP) 2015 FORD...
Cat 262D Skidloader (RIDE AND DRIVE) (A50775)
Cat 262D...
Quick Coupler (A53316)
Quick Coupler (A53316)
KUBOTA M5660 SU TRACTOR (A52706)
KUBOTA M5660 SU...
Giyi Pallet Forks (A53314)
Giyi Pallet Forks...
 
Top