lincolnlocker
Well-known member
he stated that he ran wires straight to the battery already with no change.
live life full throttle
Can certain oil instantly ruin an IPR
- Thread starter bruce
- Start date
live life full throttle
bruce
Active member
Is there a way to bench test an ipr?
gnxtc2
Active member
You could try air. I've used air to find bad orings.
https://www.accuratediesel.com/shop/260.html
Billy T.
[email protected]
https://www.accuratediesel.com/shop/260.html
Billy T.
[email protected]
^^ this is what Ive been focused on. It wouldn't be likely that the IPR or pump would suddenly stop working with an injector change. But, poor sealing oil sides on re-assembled worn out injectors will drain pressure as fast as it can be put in. While there is still air in the system, killing the motor would be easy and restarting difficult.
Get a hand pump to insure that the injectors are holding pressure in the rail. If the VCs are off, you can see it easily if/where its being lost. You could also use the pump to push oil through the hoses and rail and get most of the air out. Just disconnect the plug at the other end.
bruce
Active member
I just did some a deadhead test and with the ipr coil full fielded it made like 3500psi but with the ipr pigtail hooked up it only made like 1500psi
gnxtc2
Active member
Did you check the harness going over the valve cover for any wire chaffing?
Billy T.
[email protected]
Billy T.
[email protected]
bruce
Active member
Not really, it passes buzz test no problem
gnxtc2
Active member
Good but another wire that doesn't go to the injectors could be compromised.
Billy T.
[email protected]
Billy T.
[email protected]
ghohouston
Active member
Yes, that and the ebpv solenoid are idnetical. I dont think he would be starting or building any hpo if that were the case, but not sure to be honest.
bruce
Active member
Well today I did more testing. Hooked air up to the oil rails, drivers side didn’t make a peep so at that I just decided to remove the passenger valve cover. Hooked air up and the rear most injector was leaking. So I pulled all of them on that side. The orings weren’t cut or blown, but I replaced them anyway. Also I had an injector that the upper part is loose. Like if you grab the solenoid the part that it’s bolted to will wiggle. None of the others do that so I emailed the builder. I never really thought it would be an oil leak because the rails were always full and my fuel maintains pressure. Live and learn I suppose.
The builder should go back thru all of them. The one worn poppet was survivable but the loose seat plate on the other could be the killer. The oil will keep moving from the pump and the fuel won't flow until the oil is restricted enough to make 500 psi. The oil rail could also drain from the bad ones and develop lots of air, etc.making the start even harder.
Nice job finding it and hope you'll get it fixed now.
Nice job finding it and hope you'll get it fixed now.
bruce
Active member
The ipr pigtail I got from diesel orings doesn’t have the metal clip. It has to plastic ears, fits a lot tighter, I like it
ghohouston
Active member
They do fit well, but those plastic ears get brittle and break off.
lincolnlocker
Well-known member
now that you have a good idea of what was messed up, it just goes to show that there can be very misleading results with certain tests.
now quit being a cheapass and get some good oil in that thing once its back together.
live life full throttle
bruce
Active member
ullover:
I changed it to delo 400. I did put that oil I drained out in a 6.0 though
lincolnlocker
Well-known member
such a pecker head
I changed it to delo 400. I did put that oil I drained out in a 6.0 though
live life full throttle
bruce
Active member
I at least strained it through one of those paper funnel strainers that painters use
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