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8550 |
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Dale
Silver Level Joined: 11 Sep 2009 Location: Ontario Points: 372 |
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Posted: 19 Sep 2020 at 5:07pm |
Started the 8550 today. Within minutes coolant was coming out the filler cap overflow tube. Coolant wasn't even hot. Unscrewed the cap no burst of pressure just coolant gushing out. Haven't overfilled coolant. Engine runs fine. Have an oil pressure gauge and pressure reads about 50 which is what it usually reads. What's going on?
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DougG
Orange Level Joined: 20 Sep 2009 Location: Mo Points: 7943 |
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Sounds like something is pressurizing the coolant passage,,
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Ron(AB)
Orange Level Joined: 27 Dec 2009 Location: Alberta Points: 943 |
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Maybe a crack in the solder around overflow tube?
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Dale
Silver Level Joined: 11 Sep 2009 Location: Ontario Points: 372 |
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A crack in the tube shouldn't cause coolant to be pushed out when the coolant hasn't even warmed up yet. I'm getting pressure from somewhere, but where?
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Amos
Orange Level Joined: 11 Sep 2009 Location: Ontario Points: 1300 |
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Head gasket leaking compression into the coolant passages....or a cracked head....either way the worst part of fixing that is lifting that hood off, it is not light!
Edited by Amos - 20 Sep 2020 at 6:54am |
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JPG AUSTRALIA
Orange Level Joined: 13 Sep 2009 Points: 733 |
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No oil in the water? Just in case it might be oil cooler pressuring the radiator
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Boss Man
Orange Level Joined: 03 Mar 2018 Location: Greenleaf, WI Points: 608 |
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Not familiar with a 8550. Does it have injector sleeves otherwise known as coppers? If they lose their seal to the head the compression goes straight into the cooling system.
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Amos
Orange Level Joined: 11 Sep 2009 Location: Ontario Points: 1300 |
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Bossman it does not have the copper sleeves.
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