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6080 coolant disappearing from overflow |
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ssefick ![]() Bronze Level ![]() ![]() Joined: 09 Feb 2022 Location: South Carolina Points: 137 |
![]() ![]() ![]() ![]() ![]() Posted: 06 May 2023 at 8:41pm |
Coolant is disappearing from the overflow.
No coolant in the oil - not making oil and no mayonnaise in oil. Maybe a new radiator cap? Maybe I am being overly cautious? Anythoughts appreciated. |
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SteveM C/IL ![]() Orange Level Access ![]() Joined: 12 Sep 2009 Location: Shelbyville IL Points: 8648 |
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Tank and hose are sound? I had a cracked tank before on another series.
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KJCHRIS ![]() Orange Level ![]() ![]() Joined: 21 Dec 2015 Location: WC Iowa Points: 966 |
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Does the coolant level get low enough that the tops of tubes are visible? If not it isn't low.
Does it have an overflow catch tank? IF yes, it should draw some back to radiator as it cools.
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AC 200, CAH, AC185D bareback, AC 180D bareback, D17 III, WF. D17 Blackbar grill, NF. D15 SFW. Case 1175 CAH, Bobcat 543B,
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victoryallis ![]() Orange Level ![]() Joined: 15 Apr 2010 Location: Ludington mi Points: 2878 |
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Exhaust smell sweet?
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8030 and 8050MFWD, 7580, 3 6080's, 160, 7060, 175, heirloom D17, Deere 8760
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ssefick ![]() Bronze Level ![]() ![]() Joined: 09 Feb 2022 Location: South Carolina Points: 137 |
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o weird exhaust smell. No sweetness. Smells like the other equipment.
No fluid in overflow. Can see the hoses. Tank doesn't seem to leak when I fill it. I'll check the hose a little better. Nothing obvious. Full when I open the cap, but nothing in overflow even when I fill it after operation. Maybe I am misunderstanding how the overflow works. I am just making sure I am not missing something. |
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rw ![]() Silver Level ![]() Joined: 28 Oct 2009 Location: United States Points: 384 |
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For the overflow and recovery system to work properly the radiator has to be full to the top for the filler neck for the pressure cap, so fill the radiator all the way with the engine cold. The cap has to have a good rubber gaskets that will seal leak free against the top of the filler neck. No dings in the top of the filler neck. The brass valve in the center of the smaller rubber seal should have some spring pressure when you lift it away seal. Check for cracks where the overflow tube solders on the side of the radiator filler neck. Fill the overflow up to the full cold.
The idea was to have system full of coolant eliminating the air chamber in the top tank to lower air entrainment in the circulating coolant that contributes to poor heat transfer, as well as cavitation/electrolysis and the progressive damage that goes with all that.
Air entering in any of those places or a leak in the overflow tank will give you an inoperative recovery system resulting in air in the top tank of the radiator when the engine has cooled. |
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ssefick ![]() Bronze Level ![]() ![]() Joined: 09 Feb 2022 Location: South Carolina Points: 137 |
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Thank you for this explanation. I will inspect this part of the coolant system.
Should I get an agco radiator cap if needed to be replaced? Aftermarket ok? Manual has specifications? Thanks for all of the help!!! |
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Ky.Allis ![]() Orange Level ![]() ![]() Joined: 31 Jan 2010 Location: Kentucky Points: 1031 |
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If the radiator is staying full, then I wouldn't worry about it. Older tractors or any vehicle did not have recovery tanks and worked just fine. I never had a recovery tank that worked right anyway. Usually they are always empty.
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