7010 oil in coolant

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   Hi everyone. 

Ive got oil in the coolant of my 7010. (About at least 1/4 inch floating on top of pail after draining) Ive removed oil cooler and pressurized with homemade hose clamps and such... seems to hold air at least 10 min (if my seal job isnt leaking:) ) 

Am I looking at another head gasket now?   Replaced head gasket 300 hrs ago due to major external leaks. ( outside is dry now.)

Thanks 

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Sonlight0301 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 06 Apr 2017 Location: Ontario Points: 16	Post Options Post Reply Quote Sonlight0301 Report Post Thanks(0) Quote Reply Topic: 7010 oil in coolant Posted: Yesterday at 2:49pm
	Hi everyone. Ive got oil in the coolant of my 7010. (About at least 1/4 inch floating on top of pail after draining) Ive removed oil cooler and pressurized with homemade hose clamps and such... seems to hold air at least 10 min (if my seal job isnt leaking:) ) Am I looking at another head gasket now? Replaced head gasket 300 hrs ago due to major external leaks. ( outside is dry now.) Thanks

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Sids Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 16 Feb 2025 Location: belleville, ks Points: 11	Post Options Post Reply Quote Sids Report Post Thanks(0) Quote Reply Posted: Yesterday at 3:25pm
	It is almost certainly the oil cooler. Pressure it on the oil side and submerge in hot water.

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22274	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 17 hours 58 minutes ago at 10:56pm
	Is or was the radiator low on coolant?? If the tractor has been sitting for a day or two, loosen the oil drain plug on the pan to the very last thread and see if any coolant comes out. In 50 years, I have seen ONE failed oil cooler, and it was on an 8050 tractor. I have never seen a head gasket do as you say either. BUT, I have seen dozens and dozens of failed cylinder sleeve Orings that always put coolant in the oil pan and SOMETIMES they also manage to get engine oil into the cooling system. Proper diagnosis is key, and that involves dropping the oil pan first (with the cooling system intact and full of coolant) and pressurizing the cooling system to 12 psi (hand testing pump) and waiting to see where the coolant comes from. Sometimes I have had to plug in the block heater to warm things up to make it leak. If you do this, you will need to monitor the pressure because it can go over 12 psi and then you fix the radiator too. Any signs of shaving creme looking gook on the inside of oil fill cap or snot dripping from the breather hose is 100% for sure you have coolant in the oil.

Sonlight0301 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 06 Apr 2017 Location: Ontario Points: 16	Post Options Post Reply Quote Sonlight0301 Report Post Thanks(0) Quote Reply Posted: 7 hours 5 minutes ago at 9:49am
	Have cracked the oil plug a few times after sitting for days.. and no signs of coolant in oil. It was low on coolant. First noticed it running warmer then normal and the end plate on head (combined head) was leaking coolant . Fixed the spot externally ( where gasket had failed) so we didn't have to take water pump off. When we added coolant we saw the oil skim. Does that plate seal coolant and oil?

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22274	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 6 hours 52 minutes ago at 10:02am
	No. But back up a bit. You have had a problem like this in the past, Yes ?? Are you sure you don't have some oil residue from a previous failure/repair?? It's nearly impossible to get every last drop of oil out of a cooling system. Is there shaving cream snot on the underside of the oil fill cap or valve cover ?? or dripping from the blow-by hose ??

Sonlight0301 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 06 Apr 2017 Location: Ontario Points: 16	Post Options Post Reply Quote Sonlight0301 Report Post Thanks(0) Quote Reply Posted: 6 hours 40 minutes ago at 10:14am
	I dont see and sludge or creamy oil on fill cap or dip stick and cant see how that much oil would have been in there still from last years head gasket repair. But I think from what you're saying I should prob flush system and fill back up with water and run it again to see if it repeats?

Sonlight0301 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 06 Apr 2017 Location: Ontario Points: 16	Post Options Post Reply Quote Sonlight0301 Report Post Thanks(0) Quote Reply Posted: 6 hours 39 minutes ago at 10:15am
	Also haven't had oil in coolant ever before

DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22274	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 6 hours 2 minutes ago at 10:52am
	Yup. I use Dawn dish soap (2 -3 ounces) and flush a couple of times with water. Remember, the oil always floats on top of the coolant. Overfilling the radiator in the morning will help vomit out excess coolant and hopefully oil with it. Coolant level needs to be checked daily when using this tractor until you figure out what's going on. You do NOT want to get those cylinder heads HOT. They start leaking coolant in on top of pistons if gotten hot enough. Copper injector sleeves do not like hot temps.

SteveM C/IL Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8714	Post Options Post Reply Quote SteveM C/IL Report Post Thanks(0) Quote Reply Posted: 3 hours 58 minutes ago at 12:56pm
	Oil in coolant covers everything internal. My F2 had just had the cooler leak fixed when I got it. Ran it for years tring to float it out. Finally took time to flush with Dawn and still see some residue to this day 20+years later. Decided it was probably not good on hoses.

8070nc Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 21 Mar 2019 Location: North Carolina Points: 653	Post Options Post Reply Quote 8070nc Report Post Thanks(0) Quote Reply Posted: 1 hour 14 minutes ago at 3:40pm
	I have a DT466 that the oil cooler went bad on. I replaced it then i cut the bottom 8 inches off a chemical tote. Took the thermostat out and rigged up a pump in the tote and hoses to circulate thru the whole system and flush back to the tote which was my resovoir. Used calgon dish washer soap because it doesnt foam. Let it flush about 2 days changing solution untill it ran clear. Not a sign of oil on coolant since. May sound like overkill but i had a lot of oil in that cooling system
	1984 80780 1957 D14 DES 300 with 25000 engine 616 tractor