X748 leaking oil

   / X748 leaking oil #1  

orwell

New member
Joined
Dec 2, 2012
Messages
20
Location
orwell,ny
Tractor
X748
I have a 10 year old JD X748 with the 3cyl 0.9L Yanmar that has started leaking oil. Oil appears to be coming from behind the flywheel area near the front of the engine. Any idea what I'm looking at and is this a common problem?
 
   / X748 leaking oil #2  
It's a known issue. Age related.
The crankshaft seal can leak and manifests as you describe.

Not hard to fix.

Remove hood.
Remove battery.
Unbolt flywheel.
That gives access to the seal in its carrier housing.
Remove housing and seal complete.
Replace seal. Press fit.
Reassemble in reverse order.
RTV silicone on carrier housing mounting flange.
Torque flywheel bolts evenly.
 
   / X748 leaking oil
  • Thread Starter
#3  
It's a known issue. Age related.
The crankshaft seal can leak and manifests as you describe.

Not hard to fix.

Remove hood.
Remove battery.
Unbolt flywheel.
That gives access to the seal in its carrier housing.
Remove housing and seal complete.
Replace seal. Press fit.
Reassemble in reverse order.
RTV silicone on carrier housing mounting flange.
Torque flywheel bolts evenly.
Thank you for the reply. I'll give this a try.
 
 
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