Injector O Ring Replacement Problem - Ford Powerstroke Diesel Forum
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  #1  
Old 02-02-2014, 09:07 PM
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Injector O Ring Replacement Problem

I am replacing Injector O rings and found what appears to be water / coolant on the injectors when I pulled them. All 8 injectors looked like this see pictures. Truck was running and has 260K on it. Is this normal or is there a bigger problem with this truck?
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Injector O Ring Replacement Problem-nasty-injector.jpg   Injector O Ring Replacement Problem-nasty-injector-2.jpg  
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Old 02-03-2014, 12:10 PM
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Looks like an injector cup issue, any oil in the antifreeze? What does the oil look like?
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Old 02-03-2014, 12:56 PM
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oil looks OK no signs of water on the dipstick and when I drained the high pressure rails the oil was just black nothing milky. the coolant is green and at the right level and it smells like antifreeze not fuel. the only place there are any signs of milk is right between those 2 O rings. I was thinking injector cups as well but I thought it strange that all 8 were the same. I didn't think all 8 cups would fail at the same time.
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Old 02-03-2014, 02:40 PM
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Head gasket maybe? Im at a loss

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Old 02-03-2014, 04:08 PM
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doesn't look good. oil cooler failure, but again oil would be in the coolant or vice versa. really really aerated oil?
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Old 02-04-2014, 06:16 PM
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I would replace all the cups.
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Old 02-05-2014, 08:03 AM
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I am glad it's not my truck. I guess I get to go and buy a set of cup removal tools. I hope that I don't run into this when I go to put in my stage 2's next month.

Can all 8 of the cups be replaced in the truck or will I have to pull the hear or engine to get to #7 and 8?
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Old 02-05-2014, 07:47 PM
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You can get at them all but you'll have to take the heater box off on the passenger side. But, not sure I would go ahead and do it without a better diagnosis. I would expect to see a better indication like oil in the antifreeze etc. Could be the cups but not sure I'm convinced yet.
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Old 02-08-2014, 11:53 PM
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What's the history of the engine? The grey keerap looks odd as there is no black engine oil mixed in. And it appears there is none on the injector oil deflectors or valve train? Seems odd that all 8 cups would be leaking at once with relatively low miles. Wonder if there was a recent repair to the oil cooler? Pull the bottom rad hose or open the rad drain to see if same stuff is there? Same with oil filter?

J
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Old 02-09-2014, 12:02 AM
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the oil in your high pressure rails was black
your coolant is green and healthy looking
the truck was running good

i am going to say that some condensation formed in there between cold diesel, warm oil, cold coolant? was it started up cold, driven into the shop and shut down right away?

if it was me, i would continue like i never saw anything
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