HP Oil leak - Ford Powerstroke Diesel Forum
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Old 07-01-2013, 09:57 AM
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HP Oil leak

Brief history
2005 F250, 150k
I had a crank no start condition. ICP reading 310-325.
I tore the motor down to replace the head gaskets, and fix my HP oil leak.
I think ive found it.

Is this the culprit?
There was an oring like this on the strand pipe as well
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Old 07-01-2013, 10:01 AM
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Most likely, yes.
You should replace the standdpipes and dummy plugs as part of doing the headgaskets anyway. If you haven't already changed out the STC fitting on the HPOP, now is the time to do that as well.
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Old 07-01-2013, 10:13 AM
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I was hoping so, Orings probably dont like seats that arent flat.
Im gonna do the STC fitting, Blue spring update, Turbo oil Feed, Oil drain, Standpipes, dummy plugs, injector orings, egr delete, and arp head steads.

Last edited by jesterjames; 07-01-2013 at 10:16 AM.
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Old 07-03-2013, 06:11 PM
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I don't think that is your problem. I have an 04 so its a different HPOP however the stand pipes and dummy plugs are the same. I'm chasing a no hot start issue right now. I pulled my stand pipes and dummy plugs which were the upgrades and they looked just like that. I replaced them with new ones as I had them anyways. Still the same issue. I'm a hydraulics guy for the Marine Corps. I agree that the white backing ring SHOULD match up and sit level however in this case, I don't think that is causing you leak. I think everyone that has the revised pipes and plugs, their will look just like that.
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Old 07-03-2013, 08:09 PM
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Quote:
Originally Posted by jesterjames View Post
Brief history
2005 F250, 150k
I had a crank no start condition. ICP reading 310-325.
I tore the motor down to replace the head gaskets, and fix my HP oil leak.
I think ive found it.

Is this the culprit?
There was an oring like this on the strand pipe as well
That is not your problem there is no cut or worn oring as they are the updated dummy plugs and if the stand pipe have the same Teflon ring they are updated too! did you check your t-fitting?
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Old 07-03-2013, 09:14 PM
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The teflon ring is split on purpose to allow it to fit in the grove. It acts as support for the o-ring to prevent pinching and blow-out.

Here is one I just pulled out of the bag for the picture. If you over squeeze it, it will climb on top as in your picture.

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