Max oil pressure on a 6.9?

[6.9poweredscout]

what's the max oil pressure on a 6.9? i hve an 80 psi gauge,when my buddy saw it he thought it was more. he used to work on IH buses and said he thought they went higher.

Just wonderin! thanks!
-Jon

 

[MARQ2277]

According to my diesel repair manuel, it 40-70 running for the IDI, and 40-80 for the later years.

Marq
____________________________
1990 Ford F-250 4X4:
7.3 IDI with 120K on the clock:
ATS Turbo with waste gate:
Stage One Injectors (Oregon Injector Service):
Complete Return Fuel Kit (Oregon Injector Service):
DB2 Pump, cranked up with Cold Advance wired permanently on:
4” down pipe, 4” straight through exhaust stopping between cab and bed (no fuff on my stuff):
Torque Converter Lock Up Switch (On/Off/Lock-Up):
E4OD Line Pressure Controller (adjusted to fast/firm shifts):
4” lift w/Rancho shocks:
Big Fat Tires on custom rims:

Tows 1985 fully loaded heavy 28 foot RV (my house) everywhere:

 

[Diesel JD]

If you see 40 running down the highway thats good 60-70 at speed should definitely be possible on a new motor if everything(not just the bearings etc) is right. They also moght have used a slightly different oil pump in the buses but I'm not sure. This system is high volume low pressure.

 

[MARQ2277]

Nope, you are just fine, in fact better than fine I guess. According the the manuel, 70 is high. Things will depend on viscosity of your oil, maybe even the oil filter, etc.

As long as you are not low you should be fine, as you probably already know, the oil under pressures suspends the part in the oil, so that no metal to metal contact is ever made.

Just out of curiousity, are you running synthetic??

I run Rotella synthetic 15-30 (I bdlieve that is the weight) and a huge wix two (2) quart oil filter in mine.

Marq
________________________
1990 Ford F-250 4X4:
7.3 IDI with 120K on the clock:
ATS Turbo with waste gate:
Stage One Injectors (Oregon Injector Service):
Complete Return Fuel Kit (Oregon Injector Service):
DB2 Pump, cranked up with Cold Advance wired permanently on:
4” down pipe, 4” straight through exhaust stopping between cab and bed (no fuff on my stuff):
Torque Converter Lock Up Switch (On/Off/Lock-Up):
E4OD Line Pressure Controller (adjusted to fast/firm shifts):
4” lift w/Rancho shocks:
Big Fat Tires on custom rims:

Tows 1985 fully loaded heavy 28 foot RV (my house) everywhere:

 

[6.9poweredscout]

yea i'm probably going to run synthetic, i never knew rotella made synthetic that's great! all i run in my Gas Internationals is rotella 15-30 and the stuff is amazing! also i only run wix filters too, ill have to look for that big 2qt filter.

Thanks!
-Jon

 

[Diesel JD]

The 2qt is the PSD filter. Ford # is FL1995, I wanna say the wix # 17342, but I can't remember for 100% certain. I thought the Rotella synthetic was 5W-40 or 0W-40 for synthetic blend, at anyt rate if its as good as their mineral based oils it should be more than adequate.

 

[MARQ2277]

I had to do it the hard way. I notice that some of the Power Stroke filters were much bigger, and when I check 'em, I notice that the screw on threads, and gasket were the same, so I started to use them instead of the smaller ones for the IDI listing.

Marq
____________________________
1990 Ford F-250 4X4:
7.3 IDI with 120K on the clock:
ATS Turbo with waste gate:
Stage One Injectors (Oregon Injector Service):
Complete Return Fuel Kit (Oregon Injector Service):
DB2 Pump, cranked up with Cold Advance wired permanently on:
4” down pipe, 4” straight through exhaust stopping between cab and bed (no fuff on my stuff):
Torque Converter Lock Up Switch (On/Off/Lock-Up):
E4OD Line Pressure Controller (adjusted to fast/firm shifts):
4” lift w/Rancho shocks:
Big Fat Tires on custom rims:

Tows 1985 fully loaded heavy 28 foot RV (my house) everywhere:

 

[6.9poweredscout]

while i'm at it how much oil does the 6.9 hold with the 2 qt filter total? i've yet to fill up my motor!

-Jon

 

[LCAM-01XA]

IIRC tis 10 qts with the stock filter, and 11 with the PSD one.