1010 Diesel Crawler oil leak

[Ronk]

My 1010 Diesel (s/n: 46440 built 1964) has recently developed an oil leak into the radiator. The first time it was slight & was only enough to overfill the radiator & cause a slight overflow. At first, I thought it was oil from the hydraulic direction reverser since there is an oil cooler for it in the bottom of the radiator. I disconnected the hydraulic lines from the cooler & temporarily ran a jumper between them. I flushed & used alumiseal in the raditor & the problem seemed to go away. Yesterday, I pushed the crawler harder than normal (dug out a stump) & the problem returned. Now I know it is actually engine oil entering the radiator.

Any easy fix ideas here, or am I stuck tearing the engine down & just looking for the problem?? Any recommendations about anything I should replace for grins while the engine is torn down??

Thanks Ron

[SmallTime]

My guess is you might have a head gasket going, hope not. Maybe someone else has a better idea.

[digitup]

Did those old 440 s have a motor oil cooler . The oil has to be under pressure to be going into the coolant chamber like that.I had one of those 440 s for about 5 hours so I dont know mutch about them but deere had poor oil coolers even on the 450Bs And if the leak was in the head the coolant will be in the crank case .I had 2 of those 450Bs shove oil into the coolant and had to replace the oil cooler both times. Digitup.

[Ronk]

No - This 1010 does not have an engine oil cooler, only a direction reverse which was disconnected at the time of the second oil leak into the radiator. I am personally hoping that it is a leak around the cylinder liner plate in the right rear corner of the block, but don't know if there is a water feed through into the head nersby or not.

Thanks Ron