HELP homemade hpop setup problem

Heres the run down. I built my own gen3 style hpop setup using a halidex pump ran into a stock 17 degree hpop.

Truck fired right up after install. Rough idle as expected from air in the system. So I let it idle about 5 minutes no problem. I revved it up one time let off the throttle it died and hasnt started since. Doesn't even try to start.

Ipr only reaches 65% icp only reaches 275psi. Changed iprs new icp. All wiring looks good. Injector orings are perfect. Base oil pressure is perfect. Hpop resivoir fills. Im stumped ant ideas? Im leaning toward the stock hpop took a shiz

HPOP gear bolt tight?

With ipr Dc at 65% youre pump is putting out some serious oil.. Some where.

As stated check the hpop gear.

How many miles are on the injectors? The reason I'm asking us to rule out bad o rings.

Injectors are brandnew. I pulled them today to recheck orings. They look perfect

Injector orings look brandnew still only have 500 miles on them. I even checked the little oil rail plugs under the valve covers. Those are brand new as well

When you put injectors back in, have someone crank it over and watch the squirters for excessive oil. I've seen it a couple times an injector will stick or get air locked (I'm not sure what happens) but it just runs oil straight thru and can't build pressure. Truck will start on ether and will run on high idle but dies at normal idle.

V-Ref said:

HPOP gear bolt tight?

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:whs:

Ill check the hpop bolt when I get off work. I checked the injectors before I pulled them. None of them were pissin excessive oil

Hpop gear was tight. Retorqued it anyways. Injectors reinstalled.
What should I check next?

It makes no sense. It ran for 5 minutes and now nothing.

Bypass the gear pump and try it just on the stock hpop. To rule it out.

Have you tried to remove the rail plugs at the front to see if you are encountering a massive amount of air in the system??

I would try it without the gen3 on it.

I may have stumbled across my problem. Can someone tell me what this hole is for in the front cover? My motor is a 2000. The t444e resivoir I have does not have a passage in it to match up with this hole in the front cover. Looking at my old superduty resivoir it looks like and overflow relief maybee

The t444e resivoir I have looks like the obs one on top. The bottom one is my old superduty resivoir. The one hole is missing

so is it the IPR passage? dont have my pics on this PC to check.
the 7.3 bible might have pics in the updates section for 1996

looks like it is the IPR, if I can get my shop PC to up the pics I will post an SD front cover

If you follow that oil passage it goes up into the resivoir and back down and dumps into the front cover where the hpop drive gear is. But what is it purpose? Its fed by a port on the front of the hpop

My cast iron t444e resivoir doesn't have the oil passage for that port. Could these be my issue? With the resivoir bolted down thar passage is blocked off

Dumb question could that be the port where the ipr bleeds off pressure?

B.A.D Performance said:

Dumb question could that be the port where the ipr bleeds off pressure?

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yes.

the old obs had a check valve instead of the path up and over rez oil level