Milky looking oil in Reverse-0-matic

lenray · Oct 27, 2020

Have this White 4-80-17 4x4 backhoe. Maybe like an Oliver 1650 or 1655 Industrial. It has a Reverse-o-matic--Funk transmission. Also it has a front mounted oil cooler for the transmission. The oil has a milky looking color to it--thinking--moisture..I drained the oil--blew air thru the cooler system and flushed the reservoir with diesel fuel. Let it drain for over a week. New oil on first start up looks Milky....The old oil was milky looking, but seemed to be just oil---no separation of the oil sitting in a pail.
Do I have a moisture problem or maybe air in the system.
The hyd. oil was clean as was the engine oil...thanks for any help.....

shaun wallace · Oct 27, 2020

The cylinders are full of same oil that was drained. It will take many many oil changes to get all the milky looking oil out. If can be used for hours for several days the moisture will be boiled out.

showcrop · Oct 27, 2020

Find some loader work for it so that you are doing a lot of reversing and you will heat it up and it will clear up. You could use your hoe to dig a big hole and then use the loader to move the pile once every other month.

jon f mn · Oct 27, 2020

That tractor has a torque converter so it needs to be flushed, not just drained. Draining the oil will only remove 1/3-1/2 the oil. There should be a way to drain the converter inside somewhere. The case torque converters have a drain plug you can access by removing the pump from the side of the housing. Otherwise you will have to flush it by pulling a line and pouring oil in while the tractor runs an pumps oil out.

IHdigemdepper · Oct 27, 2020

Milky oil is caused by 2 things...water/antifreeze in it or air.May have a suction leak to the pump where oil is drawn from causing air to enter oil & then getting pressurized.If air it will have to coming from the suction side only as pressure side will show a external leak somewhere.One other cause is a semi plugged oil filter which causes pump to cavitate & foam up your oil too.Hope this helps some as I am unfamiliar with your unit but any of the above will cause same condition in an automobile.

Steve@Advance · Oct 27, 2020

Look closely at some of what was drained.

If it's been disposed of, take a sample of the milky oil from the bottom of the tank. Put it in a glass container so you can see it.

Let it sit a day or so undisturbed.

If it's air, you will see the larger bubbles rising up, and it will be somewhat clearing up. It will still feel like and flow like normal oil.

If it is water, there will be some water separating and settling to the bottom. The oil will have a slimy feel and tend to string and clump instead of drip off your fingers.
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Milky looking oil in Reverse-0-matic

lenray

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shaun wallace

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showcrop

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jon f mn

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IHdigemdepper

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Steve@Advance

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