![]() That would deal with a water pump replacement, sealant and no FEC gasket, and stretch bolts in that area. There is also a possible bleed thru area in the forward end cover at the oil pump out put. If you feel that it is more that you would like to take on then I would suggest you contact your local JD dealer. If the engine oil cooler is not the culprit I would suggest that you purchase the maintenance CD for your particular tractor and follow it thru to find the problem. ![]() Instructions call to torque the center nipple to 27 ft./lbs. The oil cooler is very fragile so handle it with care. It says that you need a special tool to remove the center nipple on the cooler. Low pressure air thru the coolant lines and submerge the oil cooler in water and look for bubbles. Gasket - GASKET, PASSAGE ADAPTER COOLANT. If you wanted to check it you would need to make your own setup. John Deere R501428 - Engine Oil Coolant Passage Adapter Gasket. They would be a bad head gasket or a crack, either in the head or. There are no instructions in the maintenance CD on how to check the engine oil cooler. There are really only 2 ways to get oil in the coolant w/o a cooler built into the radiator. There is also a packing between the oil cooler and cylinder block which you would need new also. If you are going to remove the engine oil cooler purchase new rubber hoses and clamps. I have had my off to replace the 2 coolant lines that were leaking. It is located right behind the engine oil filter. I would check the engine oil cooler first. I know it is supposed to be a fully formulated HD coolant but Im wondering what I can find on the shelf at the parts store. Faulty head gasket, faulty engine oil cooler, cylinder bore cracked, cylinder head and or block cracked. 1 We have a John Deere 5075e tractor, coolant is low and Im wondering what I should use to top it off. The maintenance CD has several suggested causes. Cool-Gard II is more of an amber/green color. Original Cool-Gard is a nice green color. I have a maintenance CD for my 4320 and it should be a similar type of engine/ 2.44 L JD Power Tech/ that you have in your tractor. Ethylene Glycol 107-21-1 Diethylene Glycol 111-46-6 Sodium Tetraborate Pentahydrate Inhibitor 1 (yes it is now listed as one ingredient) 6 yr./6000 hr. Have you flushed the cooling system since you put on the new head and gasket It could be just oil that got in the coolant passages from the old cracked head. It doesn't take very much oil in the coolant to turn it to a gray sludge as you say.
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