Yanmar 2GM20F rear main seal

[Ken13559]

I'm planning for changing of a leaking Rear Main Oil Seal p/n: 124085-02220 for my 2GM20F. Has anyone the OD ID & thickness of this Oil Seal? And is it single or double lips?
Thanks in advance.

Ken Y

 

[kloudie1]

Ken, the parts book says it is a double lip nitrile, HTC 60829 oil seal. I think that is 60mm id, 82mm od, and 9mm thick.

 

[Ralph Johnstone]

I'm planning for changing of a leaking Rear Main Oil Seal p/n: 124085-02220 for my 2GM20F.

Hey Ken,

I'm really impressed with your diving into this project. How many hours do you have on your engine ? Just trying to get an idea of how long I've got to go before I start looking closely back there for a leak. Not hoping for the leak but it would be an interesting project if it appears.

Post pictures if your hands aren't too greasy.

 

[Ken13559]

Hey Ken,

I'm really impressed with your diving into this project. How many hours do you have on your engine ? Just trying to get an idea of how long I've got to go before I start looking closely back there for a leak. Not hoping for the leak but it would be an interesting project if it appears.

Post pictures if your hands aren't too greasy.

Ralph, I've about 2700hrs on my engine. Was encourage to fix the leak by these YouTube videos.

Ken Y

 

[Ken13559]

Ken, the parts book says it is a double lip nitrile, HTC 60829 oil seal. I think that is 60mm id, 82mm od, and 9mm thick.

kloudie,
Thanks for this bits of info which help me find the page in the Service Manual

Ken Y

 

[Ken13559]

Anyone any idea how much back room would a KM2P gear box need to decouple from the 2GM20F engine? At best I've about 2" clearance without removing shaft coupling.

Ken Y