JD300 Loader/backhoe


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JD300 Loader/backhoe

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.
Rob Dietrich
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.



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