autocarmark
New User
I have a 1971 MF165 Diesel with a nagging oil leak from the fuel pump. I installed a new fuel pump thinking it may have been an issue with the pump mounting surface or gasket, but with the second pump I have realized the leak is coming from the priming pump lever pivot shaft, NOT the pump mounting surface/gasket. It even leaks for a while after the tractor is turned off. I don't know if that priming lever shaft is intended to be oil tight or if the issue is excess oil in the cam shaft area running into the fuel pump. When I take the fuel pump off there will be 8-10 ounces of oil run out of the mounting hole from the block. And I am certain it is engine oil leaking, not diesel fuel.
Any ideas or help would be greatly appreciated.
Any ideas or help would be greatly appreciated.