Coolant blowing out degas - Ford Powerstroke Diesel Forum
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Old 04-07-2014, 02:23 PM
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Coolant blowing out degas

Ok injector cups changed, new o rings on injectors. Filled up degas with water and cranked motor, little rough at first but smoothed out and runs perfect. I ran water in degas bottle with ****pit open for a while. Then closed ****pit and filled with 4 gallons of antifreeze. Been driving it for two days and it runs great but I noticed degas bottle was low so I added to full thinking air worked its way out but now I think its blowing out of the degas cap. No smoke, great power, no coolant in oil, no fuel in coolant. What gives??

Blowing out under boost or load. Is it possible my degas cap is messed up from where the diesel fuel was in the system for a while or did I not get one of the cups seated properly?
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Old 04-07-2014, 02:37 PM
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Did you use the cup loctite?


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Old 04-07-2014, 02:47 PM
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Yes I bought the cups, orings, and injector cup locktite from thoughobread diesel.
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Old 04-07-2014, 02:50 PM
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I just checked the coolant level and it was good, drove it out on the highway and really stood on it. Got back and the coolant was to the top of the degas bottle and after a short while in the front yard the coolant level was back to normal.
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Old 04-07-2014, 02:56 PM
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Think there is air in the system?
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Old 04-07-2014, 03:03 PM
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Ya its possible. Usually after i reassemble after a tear down I'll let engine idle with the cap off for at least 10 min


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