Valve cover leak? - Ford Powerstroke Diesel Forum
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Old 04-06-2010, 10:04 AM
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Valve cover leak?

02 7.3 114000mi. Ichecked the valley no oil. O n right rear the oil appears to be leaking from the bottom of valve cover down the block and on the oil pan. Is this common for a 7.3 with this many miles or could it perhaps coming from another source. If it is in fact the valve cover what can Iexpect to pay to get it repaired and should I replace both. I used to do alot of small repairs on my vehicles but those days are behind me now.
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Old 04-06-2010, 11:49 AM
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A more likely source would be the high pressure oil rail end plug - an o-ring change and you're done. The valve cover gaskets almost never leak.
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Old 04-06-2010, 12:19 PM
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checked HPOP clean as a whistle. the oil is running down the right rear of the block starting by the vavle cover. no oil puddling in the valley.

Last edited by MarkTX; 04-06-2010 at 01:13 PM.
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Old 04-06-2010, 02:49 PM
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MarkTX - watch this video: I think your problem is the plug he shows at time 4:29

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I understand your HPOP is not the source. I am talking about a drain plug that is in the end of the head - right below the valve cover in the back of the engine. You'll see it in the video - it makes more sense then.
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Old 04-06-2010, 03:13 PM
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dray, definitely looks like that may be the culprit as there is oilresidue all around that area even the top. that would explain none in the valley as it would droll right out. that fella really seems to know what he is talking about. I'll take better look at it. Thanks abunch.
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Old 04-06-2010, 03:18 PM
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Yeah - when I got my PSD, I watched every one of his videos. Made me glad I got the 7.3 and not the 6.0. Good luck with it.
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Old 04-07-2010, 06:58 AM
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dray, Icrawled under and was able to see what I,m quite sure was the plug on oil galley onthe end of the head. Clean. Under the turbo quite oily which leaves me to beleive it may bethe turbo pedestal. What do you think?
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Old 04-07-2010, 07:00 AM
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Old 04-07-2010, 07:07 AM
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Quote:
Originally Posted by MarkTX View Post
dray, Icrawled under and was able to see what I,m quite sure was the plug on oil galley onthe end of the head. Clean. Under the turbo quite oily which leaves me to beleive it may bethe turbo pedestal. What do you think?
That is a very common place for them to leak and the oil will drain backwards from there. If nothing else, while you have the turbo off, you can do a better cleaning/visual inspection of whats going on. Here's a good source for the kit you'll need:

Replacement O-rings for Ford Diesel Engines
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Old 04-07-2010, 08:05 AM
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