HPOP Oil Discharge Tube - Early 2004

[HarleySuperDutyF350]

Hi Everyone - new member to this community, but have found great info here so thank you to you all!

Dealer diagnosed a bad HPOP on my early 04 6.0. I was only getting 350psi...so not enough to fire the injectors. Thing just stalled while driving. Dealer had control of the IPR with thier diagnostic system, and air leakdown did not five any obviouse results. They recomend new pump and ipr. With that I decided not to drop over 2k at the dealer.

I towed it home to fix myslef & have the HPOP out. Not Fun...didn't know I could bend in all those positions. Anyway, noticed that the IPR oring was pinched when the previous owner had it installed years ago, so not sure if that could account for a drop in pressure after all this time? I also found some small metal debri on the screen...but not enough to block it....I don't think?

So this leads me to my first two questions....
1) Is it likely that the pinched oring is the cause of my pressure drop....maybe not needing a HPOP?
2) Where would this small metal debri come from? The ball is still in the pump, and nothing looks obviouse to me.

As I was removing the pump, I removed the two bolts holding the discharge tube on the top of the pump and it simply swivels to the left to allow for clarence to remove the pump.

That leaves me to my last two questions...
3) Should it be this loose, or should it be snug & difficult to move? I'm not familiar with this configuration, so I want to make sure this is not the area of pressure loss before I put it all back together.
4) Before I pull that discharge tube out of there as well to inspect and replace any orings, how is it actually connected & how do you remove it without damaging it? Should I even bother?

Thanks for help! Jim

[mudworld]

A pinched o ring on the icp no, is the metal on the screen a brass color or metal color, if it is brass then it is the hpop, mine was the same way screen had brass on it, screen was good so i cleand it with carb cleaner and put it back on replaced hpop every thing is fine. With 350psi cranking there is definitly a bad pump. As far as the stc fitting yes it is loose just swivel it up and put the pump in and fire it up. There is a tool that looks like a hydraulic release for the ford slave cylinder
OIL LINE DISCONNECT TOOL - FORD 6.0L 3478 | eBay

[HarleySuperDutyF350]

Originally Posted by mudworld

A pinched o ring on the icp no, is the metal on the screen a brass color or metal color, if it is brass then it is the hpop, mine was the same way screen had brass on it, screen was good so i cleand it with carb cleaner and put it back on replaced hpop every thing is fine. With 350psi cranking there is definitly a bad pump. As far as the stc fitting yes it is loose just swivel it up and put the pump in and fire it up. There is a tool that looks like a hydraulic release for the ford slave cylinder
OIL LINE DISCONNECT TOOL - FORD 6.0L 3478 | eBay

Ok...so brass would be the pump then....I will check to see if it is magnetic today because I can't tell by looknig at it...

So at 350psi, you think it's gotta be the pump then? Hoping that will be it and nothing with the injectors.

I already ordered a new IPR, so guess that will get replaced anyway....but that's ok...because it's not easy to get to these and I already tore it all down.

Glad to hear the discharge tube should be loose...I've seen some recomendations to replace the discharge tube and the cover, but I'm not wanting to do that it if it is still good....

Did you order a Ford replacement pump or go for an aftermarket?

[HarleySuperDutyF350]

ok....the metal on the ipr screen ... almost all not magnetic. There were only 2 specs that were, the rest was not....but hard to say still if it was brass or what it was....it was hard, and black....so still thinking brass from the pump. Let me know what you think about stock or aftermarket pumps....have to buy a pump Monday for sure....my truck has been down way too long

Thanks again!

[dannyboy950]

Those pieces if they were brass would look like brass(copper) colored. That may be pieces of plastic from the oil sump screen. The fitting that swivels has an o-ring that could be damaged in some way, hard to say.
If you want to check it, and still have the two wrenches that come with a die grinder the smaller one works pretty good as a disconnect tool. Altho there are only a couple of angels it will fit.

[HarleySuperDutyF350]

Originally Posted by dannyboy950

Those pieces if they were brass would look like brass(copper) colored. That may be pieces of plastic from the oil sump screen. The fitting that swivels has an o-ring that could be damaged in some way, hard to say.
If you want to check it, and still have the two wrenches that come with a die grinder the smaller one works pretty good as a disconnect tool. Altho there are only a couple of angels it will fit.

Thanks for the feedback. If I put air to the discharge tube (where it would connect to the top of the HPOP), should it hold 100 psi or so, or should it allow some air to escape where it swivels? Any idea what the ford part number is for that oring?

[mudworld]

If you put air there should be no air leaking from swivel. I bought my hpop from ford it was a good price.

[HarleySuperDutyF350]

Ok...thanks everyone. I will put air to it tomorrow and post back with results. IPR is on order, will get HPOP Monday....all goes well I will have my truck on the road again by next weekend! If you need pics of anything torn down, more than happy to post them here...just let me know what.

[mudworld]

don't forget it will take a few attempts of cranking to purge the air out and oil in, if you have a battery charger you may need to use it.

[mechanix]

I had mine down that far and noticed the same thing seemed loose too I replaced it thinking it was loose too just for piece of mind. Check out the thread in my sig for for more details.