Hate to start my membership with questions, but it is what brought me here.
I have a John Deere 870 that has a Yanmar 3 cyl 3TN84 (iirc).
It is getting diesel in the oil.
I have been told this is probably from the lift pump or the injection pump.
Any ideas on how to verify which it is or which is more likely?
I started pulling the injection pump off but didn't realize you had to pull the front cover to pull the gear off the front of the pump first.
I have the factory service manual for the 870 but it doesn't cover the injection pump.
Can y'all help me.
Lee
I have a John Deere 870 that has a Yanmar 3 cyl 3TN84 (iirc).
It is getting diesel in the oil.
I have been told this is probably from the lift pump or the injection pump.
Any ideas on how to verify which it is or which is more likely?
I started pulling the injection pump off but didn't realize you had to pull the front cover to pull the gear off the front of the pump first.
I have the factory service manual for the 870 but it doesn't cover the injection pump.
Can y'all help me.
Lee