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Jan 10, 2014 | 04:45 PM

Jerry Chaney

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HPOP

Just pulled my HPOP 7.3 the o-rings are definitely shot. I was wondering if one could tell if it was a bad pump just by looking at it

and why can't I post attachments

Jan 10, 2014 | 04:58 PM

Tom

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From: Isanti, MN

See below on how to post pics:

Jan 10, 2014 | 05:03 PM

Layson

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From: Millersburg, OR

Quote:

Originally Posted by Jerry Chaney

Just pulled my HPOP 7.3 the o-rings are definitely shot. I was wondering if one could tell if it was a bad pump just by looking at it

and why can't I post attachments

Post up over in the 7.3 Powerstroke area. You will get a lot of help their!

Jan 10, 2014 | 05:03 PM

Tom

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From: Isanti, MN

Quote:

Originally Posted by Layson

Post up over in the 7.3 Powerstroke area. You will get a lot of help their!

I can help out with that one.

Moved to the 7.3L forum!

Jan 10, 2014 | 05:34 PM

Jerry Chaney

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Quote:

Originally Posted by Layson

Post up over in the 7.3 Powerstroke area. You will get a lot of help their!

thought I was thanks

Jan 10, 2014 | 10:35 PM

Tailgate77478

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From: D.C. but heart's in TEXAS

Just because o-rings are bad doesn't mean the pump is bad. Why did you pull it in the first place? If because of a huge oil leak / dump, then check the HPOP hoses.

There is a "non serviceable plug" on it that has a tendency to leak. But it IS serviceable. https://www.ford-trucks.com/forums/6...your-hpop.html Also, on Bob's site for the non-serviceable plug repair kit, there is a downloadable PDF: http://www.dieselorings.com/servicea...hpop-plug.html

Jan 10, 2014 | 11:15 PM

Jerry Chaney

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I was going thru oil like crazy, 5 quarts in 10 miles. Replaced Oil Cooler last week, now fixing leaks on HPOP, one was fuel line, and the other was the non-serviceable plug.

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Jan 11, 2014 | 03:17 AM

Tugly

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From: Puget Sound

Did that O-ring come off the IPR in the picture? I see the small one is shot as well.

Jan 11, 2014 | 09:03 AM

#10

Jerry Chaney

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IPR

Quote:

Originally Posted by Tugly

Did that O-ring come off the IPR in the picture? I see the small one is shot as well.

yes. that 0-ring is off my IPR, I have rebuild kit coming today, I hope. Could my massive oil leak have come from there?

Jan 11, 2014 | 11:25 AM

#11

Tailgate77478

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From: D.C. but heart's in TEXAS

Quote:

Originally Posted by Jerry Chaney

yes. that 0-ring is off my IPR, I have rebuild kit coming today, I hope. Could my massive oil leak have come from there?

I am no expert, because the volume you are talking about is quite heavy. However, if that o-ring was busted, you can see the channel cut in the threads would allow oil to shoot right through there under high pressure, and with a cut/busted o-ring there wouldn't be too much to stop the oil from coming out. So I suppose it is possible that was your culprit.

Jan 11, 2014 | 12:03 PM

#12

CGMKCM

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Joined: Oct 2009

Posts: 655

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From: Randolph County NC

Quote:

Originally Posted by Jerry Chaney

yes. that 0-ring is off my IPR, I have rebuild kit coming today, I hope. Could my massive oil leak have come from there?

My theory is the IPR was not tight in the pump and backed off which allowed oil pressure to cut the o-ring. Yes it would be a massive leak. Check the unserviceable plug, based on the picture, it looks like it was leaking also. For that plug to leak it would also have to become loose and oil blow by the o-ring.

Jan 11, 2014 | 08:27 PM

#13

HD Rider

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From: Glendive, MT

Was all that oil landing on the ground or disappearing somewhere else?
The reason I ask is because a blown injector oring will dump oil into your fuel.

Jan 11, 2014 | 08:51 PM

#14

Jerry Chaney

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not very much oil on ground, but I do have oil in my fuel. I was hoping to see something distinctive on the o-rings, they defin. look worn out, but nothing obvious. going to pull the other bank tomorrow. thanks everyone for your feedback, love this site.