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|Rob Dietrich||Have a JD300 industrial loader/backhoe that leaks transmission oil into crankcase. Any ideas? Probable causes, work required to repair, parts, etc.
|richard||if you have a power steering pump on the front cover of the engine you could be getting oil in there. but no trans oil can get into the engine. you may be getting fuel into the crankcase through the seals on the injection pump or the fuel transfer pump. on the side of the engine.
The tractor in question is a JD400, not a JD300, my mistake. Am still trying to determine how crankcase overflows with oil as the transmission goes down and all hydraulics quit. I can drain crancase and refill trans and all is good for a short while.