IPR oil leak - Diesel Forum - TheDieselStop.com
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99 & up 7.3L Power Stroke Engine and Drivetrain Discussion of the 99 & up 7.3L Power Stroke diesel engine and drivetrain in the 1999-Up Super Duty trucks and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.

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Old 09-25-2006, 04:12 PM   #1 (permalink)
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IPR oil leak

My IPR seems to be leaking oil out the end where the Tinnerman nut is. Is this possible? I can see the oil build up and then drip out the end. I have verified that the two lines on the drivers side of the HPOP are not leaking and also the two hex plugs. Will the IPR rebuild kit solve this issue?
Please advise
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Old 09-25-2006, 04:13 PM   #2 (permalink)
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Re: IPR oil leak

[ QUOTE ]
My IPR seems to be leaking oil out the end where the Tinnerman nut is. Is this possible? I can see the oil build up and then drip out the end. I have verified that the two lines on the drivers side of the HPOP are not leaking and also the two hex plugs. Will the IPR rebuild kit solve this issue?
Please advise

[/ QUOTE ]

Most likely.

Hammer
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Old 09-25-2006, 07:32 PM   #3 (permalink)
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Re: IPR oil leak

Thank you for the reply Hammer. I have never had an IPR and solenoid out on the bench so I am trying to understand the failure mode for this oil leak before I start buying kits and removing parts. Is there a gasket/o-ring between the solenoid and the IPR? I was under the idea that the oil leak would have to stem from the o-ring between the HPOP and the IPR interface, which makes the oil at the end of the Tinnerman nut confusing [img]/ubbthreads/images/graemlins/shrug.gif[/img]. Would you mind venturing an opinion on which gasket/o-ring has failed. Any information is greatly appreciated.
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Old 09-26-2006, 12:00 AM   #4 (permalink)
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Re: IPR oil leak

[ QUOTE ]
Thank you for the reply Hammer. I have never had an IPR and solenoid out on the bench so I am trying to understand the failure mode for this oil leak before I start buying kits and removing parts. Is there a gasket/o-ring between the solenoid and the IPR? I was under the idea that the oil leak would have to stem from the o-ring between the HPOP and the IPR interface, which makes the oil at the end of the Tinnerman nut confusing [img]/ubbthreads/images/graemlins/shrug.gif[/img]. Would you mind venturing an opinion on which gasket/o-ring has failed. Any information is greatly appreciated.

[/ QUOTE ]

My thinking is that the oil leaked at the O-ring where the IPR screwed into the HPOP and seeped down between the Solenoid and the part of the IPR it slips over.

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Old 09-26-2006, 02:10 PM   #5 (permalink)
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Re: IPR oil leak

Does anyone know if there are any o-rings common to the Tinnerman nut/solenoid/IPR? If there are what are the sizes? Also what is the size of the o-ring between the IPR and the HPOP?
Thanks,
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Old 09-26-2006, 03:45 PM   #6 (permalink)
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Re: IPR oil leak

The solenoid slides right over the stem of the IPR, without any o-rings, and is held on by the nut.

I don't know the size of the o-ring for the IPR-HPOP seal, but you can get a kit for all IPR o-rings from either Ford or Int'l. I believe it's internal as well as external o-rings.

IPR O-ring kit
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Intl 1825806 C91
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