[quote=hucka1a;7312841]x2

It takes a very secure man (or woman) to willing let something embarrassing be recorded and/or posted. (this doesn't mean I won't fall out of my chair laughing though!)

 

Where does a hpop gauge plumb into...............I wanta get a gauge to go with my isspro's. I have a 55,000 mile 7.3L PSD and willin to get numbers for the stockers. I only have a DP tuner that can be taken out. What do I need?

 

[QUOTE=Pocket;7312816]Testing and finding the problem is the hard part. If it's an o-ring or injector problem, the only way to find out is to take the valve cover off. You can have an injector pissing away oil, and it can still pass the CCT and the buzz tests every time.

I have never run a 7.3 with the valve covers off. what should i expect to see? in other words whats normal? I assume there is some oil flying around, so what would it look like if an injector(s) was leaking excessively?
Barney

 

Curtis

I agree with your input.
But the gauge (non damper) responce time is quicker than
my snapon scanner. The scan lagg's in realtime.
Its a few ms behind the gauge. Its not just the
scan tool. The pcm's communication speeds are not
all that great either.
The gauge is in realtime with its +/- % error.
Its what the inj feels.

Bill

 

[QUOTE=bfife;7313175]Just isolate parts of the system (heads/pump/ect).
Pressurise them, see how they hold.
Dead head the parts being tested.

Also possible is it could a be a oil feed or foaming issue.
The PSD is temperamental when it comes to the oil.
You can make back to back runs (hot lap it). And the testing #s will change.
Just from beating the chit out of the oil.

Bill

 

Somebody rep Pocket for me.
This is a good post.

 

There is a step by step test proceedure for this written out somewhere, but I can't remember where it's posted. Maybe someone has the link handy?

 

Got you covered Dan. That was a good post.

 

I got him also. Great post Curtis.

 

Here is some ,I'll look for more ...

If you use a guage ,,unhook one of the lines from the pump & attach the guage to the line note pressure ,,,

Then ..re attach the line to the head & do the same thing with the other head , note pressure

If need be , un hook lines to both heads ,attach the guage to one ,& cap the other ,,note pressure ,,this will dead head the pump itself & tell you if the IPR is stuck open (no pressure)

The other tests are mainly for injector o rings ,,may just need to verify IPR ,,if presure there , then move on to the heads ...


thanks to Swamps Diesel site.

How to check if my HPOP is good

There are 2 ways to measure the oil pump's performance.

If you have access to a scantool, hook it up to the trucks OBD connector, and go to the "datastream"...scroll through the sensor values, until you find ICP (or injection control pressure)...this is your HPOP's "oil pressure".

***NOTE: if you are running any kind of "box" such as the "Edge EZ" or the "Banks Six Gun" you either have to remove the aftermarket jumper harness/plug at the ICP sensor, and reconnect the factory harness by itself. If you are running a home made "10k mod", etc...which plugs/taps into the ICP sensor wires (or connector pins), you will have to remove it as well, or proceed with getting the parts together to run the mechanical gauge, as the scantool will not receive accurate data from the ICP sensor if its signal is being modified from any one of thes "ICP foolers".

To test the HPOP's output, you will be looking on the scantool for the line labeled "ICP" and it's units should be in psi not volts. Some scantools measure ICP in kPa (kilopascals) which you can convert to psi after you take your measurement in kPa.

1kpa = 0.145psi

(for example 19,310kPa = 2800 psi)

Put your chip in its' highest setting, and go out on the interstate (while having someone watch the ICP value on the datastream) and start at about 60mph...

FLOOR the pedal, and stay in it, 100% from ~60-90mph...what you're likely to see (on the scantool) is that the ICP will spike up rather quickly, to 2800-3000psi or so, and then the longer you stay in the pedal...the ICP will slowly drop and drop and drop...the ICP will eventually stabilize (stop dropping).

WHERE the ICP levels off can be some indication as to the condition of your HPOP.

If your truck can maintain 2800+psi then you are one of the FEW folks that have a terrific HPOP.

I would estimate that 90% of the Power Strokes can only maintain ~2200(+/- 200)psi of HPOP pressure, or ICP...5% are above 2600, the other 5% are below 1900psi...


depending on how low (or high) of ICP you are able to maintain will greatly affect which model of injector I would recommend.

If you don't have access to a scantool, then go to your local hydraulic supply house, and have them make you up a mechanical gauge. You might spend $60 or so on high pressure hose, fittings, and a quality 0-3500psi liquid filled gauge....but having this hose available for future diagnostics might be more valuable than you think.

The hose which you will need will need to be about 40" long, rated for (minimum) 3000psi working pressure (12k psi burst rating!) with the gauge on one end, and a #6 female JIC swivel fitting crimped onto the other.

You will also need an individual fitting to screw into the head to go from the head to the hose.

This single fitting will be a 90degree fitting # 5 "male boss" (sometimes called # 5 o-ring) on one end of the 90, and a # 6 male JIC on the other end of the 90. Our local hydraulic shop would label such a fitting as 5MB-6MJ90

"JIC" is nothing special...it's just 'hydraulic talk' for a 37degree flare fitting...standard hydraulic stuff here...nothing rare by any stretch.

Looking at the top of (either) cylinder head, you'll see the factory stainless braided oil lines (one to each head) then you'll see a few bronze colored plugs... (Engine off, of course) Using a 5/8" wrench, remove any one of the bronze plugs, and install the 90deg fitting into the hole. (save the plug for reinstallation , after testing). and the O-rings are reusable, unless brittle, cracked, etc...

The single 90deg fitting will have a "jamb nut" on the O-ring side...screw the fitting into the head, "aiming" the 90 away from the turbo, intercooler pipes, etc...and then tighten the jamb nut, to "squish" the O-ring also locking the 90 from "spinning" around as you attach the swivel end of the hose to the 90. No sealants, loctite, or teflon tape are needed on "JIC" or O-ring fittings...and don't overtighten them...usually about 180degrees with a wrench past finger tight...check for leaks prior to getting too far from home...

run the hose, away from moving parts, electrically conductive junk (like batteries, glow plug relay, starter relays, etc) ..and just route the hose up through the cowl toward the windshield...for short term testing purposes, we just lay the gauge up under a windsheild wiper, and go drive...testing it just like I describes previously...chip in the highest setting, floor the truck, etc....

If you can maintain 2800+ psi of ICP, then any injector 250cc's and under will perform exceptionally well.

If you can maintain 2400psi then that's not bad, not great either.

2200psi is mediocre, and full performance from any injector will not be achieved with that HPOP, though power WILL go up with nearly any injector, driveability (excessive smoke) might be an issue.

If you cannot maintain 1900psi, you might seriously consider an aftermarket dual HPOP system, or our Gen3 HPOP. Nearly any larger injector is going to make the truck feel sluggish, and smoke excessively.[/FONT][/COLOR]

 

Reps to all three Pocket ,Tenns and ole Action, that's some good INFO!!

 

In maybe a year or so I *may* go up to 175/146 single-shot injectors. Again, my goal is to make towing & daily driving easier (and fun!) and to improve my mileage. This is a BIG *maybe* and will probably wait until I need to replace the stock injectors.

I just put new tires on Nyx so I'm going to try and get setup with a fuel pressure gauge and see what happens at WOT before installing the Adrenaline. Then some post install runs. That would be ideal, and I want to do it ASAP, just other priorities are taking precendence. Hopefully Scott will have some info for us next week.

 

Rick

I find you guilty of a cut and paste.
Swamped
Someone should throw you a bean!
(green that is)

Bill

 

Well the question was if anyone knew of some instructions and he did say he'd see if he could "find" some more. I thought it looked familiar

 

I gave credit to Dave at the beginning ...

I saved it long ago



BTW ,,it was copy & paste


Otherwise ,its a lot of typing ....

The only credit I can take for it ,is remembering where I kept it ....