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RE: Oil in the radiator - 6 cylinder diesel

V

Valiant Farmer

Member
Hi,
Thanks for replying to this topic.

Does the oil cooler cool the engine or transmission oil? If transmission (transmission oil is red), is it a blown head gasket?

Need to know before we take off the radiator for repairs

Hi,
We have a Furakawa FL 230 FEL with a Mitsubishi 6D20 diesel engine.

When we looked in the radiator there was a layer of engine oil at the top of the radiator. Water has never been the cleanest, but never oil in it. Whenever we check it, it always has water in it.

Marloweg has it oil cooler. If you want to test it you need to block off the port then with it in a pan of water heat the water till it shows up. Pressurize the oil side and it will bubble when it gets hot enough to leak. Heat to engine operating temp.

oil cooler is leaking
 
Engine oil. It just unbolts off the engine and bolt a new or good used one back on with new gaskets. If there are other parts with o-rings to connect the water side I would change them at this time also.
 

cvphoto36850.jpg


Oil cooler is backed on to the radiator closest to the fan
 
I have no idea about yours. My Fiat dozer has a heat exchanger on the side of the engine for the transmission. Coolant on one side, red tranny oil on the other. I suppose it does two things- quickly warms the trans oil in cold weather, and cools it in hot weather.
 
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