High oil pressure - Competition Diesel.Com

Nor'Easter · 08-08-2016, 04:50 PM

I have a '96 engine in my Power Wagon conversion with 104,000 miles on it.

At cold idle I am between 75-80psi at the filter housing which seems incredibly high to me.

The cooler gaskets were replaced out of a Cummins gasket kit I bought from a member on here. I have one gasket left over, which is a paper/felt version of the metal/rubber gasket that goes between the block and cooler itself.

I have not got it up to operating temp as the high pressure worried me. Thoughts?

stubz616 · 08-09-2016, 06:58 AM

That's normal. In the dodge trucks the gauge reads around 40-50 when in reality if you check it with a mechanical or aftermarket electric gauge it's actually around the pressures your describing.

Sent from my iPhone using Tapatalk

DISTURBED · 08-09-2016, 07:03 AM

My pullers with stock oil pumps are around a 100psi cold at the filter housings. All the ones I've checked at the filter housing have always been higher then on the cam rail

diesel_importer · 08-09-2016, 10:00 AM

Yep, normal. Putting a mechanical gauge on it will show you how the factory one is BS

*Snedge* · 08-09-2016, 10:10 AM

Perfectly fine.

*Big Blue24* · 08-10-2016, 02:47 AM

My Junker Drag truck has a mechanical gauge at the oil filter housing, cold idle (1100 rpm) it's right at 100 psi, rev it up to 1500 and it tops out at 110 to 115 psi. After it warms up, it drops down to about 45 psi. With warm oil at full load on the dyno, it's in the 75 to 80 psi range.

Nor'Easter · 08-10-2016, 05:31 AM

Thank you gentlemen, much appreciated.

08-08-2016, 04:50 PM	#1
Nor'Easter Name: Nor'Easter Title: Too Much Time Status: Not Here Join Date: Nov 2012 Location: Maine Member`s Gallery Posts: 947	High oil pressure I have a '96 engine in my Power Wagon conversion with 104,000 miles on it. At cold idle I am between 75-80psi at the filter housing which seems incredibly high to me. The cooler gaskets were replaced out of a Cummins gasket kit I bought from a member on here. I have one gasket left over, which is a paper/felt version of the metal/rubber gasket that goes between the block and cooler itself. I have not got it up to operating temp as the high pressure worried me. Thoughts? __________________ Mike Stacked silencer rings. 1957 Cummins Power Wagon 2014 Regular Cab G56

08-09-2016, 06:58 AM	#2
stubz616 Name: stubz616 Title: Too Much Time Status: Not Here Join Date: Oct 2008 Location: Brewster, MA Member`s Gallery Posts: 1,327	That's normal. In the dodge trucks the gauge reads around 40-50 when in reality if you check it with a mechanical or aftermarket electric gauge it's actually around the pressures your describing. Sent from my iPhone using Tapatalk __________________ 95 RCLB Farrell Diesel Stage 5 13mm pump,Hamilton Springs,Retainers,Pushrods,Fluidampr,Steed Speed,S467.7/soon to be S488 atmo,Full Billet Trans,DPC 4 disk TC,BD Pressure Loc,Haley Speed 5x.022s,Diesel Pros Custom Cam,O-Ringed,.010 over HG,A1000,Hellman sump,625 Studs, 30*

08-09-2016, 07:03 AM	#3
DISTURBED Name: DISTURBED Title: YEA WE RIDE THE SHORT BUS Status: Not Here Join Date: Nov 2007 Location: Winchester, Va Member`s Gallery Posts: 6,417	My pullers with stock oil pumps are around a 100psi cold at the filter housings. All the ones I've checked at the filter housing have always been higher then on the cam rail __________________ Thanks, Jeremy 01 CTD Retired sled puller, dedicated "Twin Turbo" tow rig 96 CTD "TOO" Disturbed 3.0 - Built by Disturbed Diesel Performance 96 CTD "The Sickness" 2.6/2.8- Built by Disturbed Diesel Performance

08-09-2016, 10:00 AM	#4
diesel_importer Name: diesel_importer Title: Too Much Time Status: Not Here Join Date: Oct 2007 Location: Fairfield,TX Member`s Gallery Posts: 4,501	Yep, normal. Putting a mechanical gauge on it will show you how the factory one is BS __________________ 01 QCSB 2WD AUTO: Redline/Smarty, Monster VP, 6x.013, S467 FMW, Goerend Trans, Caltracs. Fuel only - 11.85 @ 114, 50 Shot - 11.58 @ 116 w/ 1.69 60'

08-10-2016, 02:47 AM	#6
Big Blue24 Name: Big Blue24 Title: Comp Diesel Sponsor Status: Not Here Join Date: Jan 2008 Location: Cedar City, UT Member`s Gallery Posts: 6,310	My Junker Drag truck has a mechanical gauge at the oil filter housing, cold idle (1100 rpm) it's right at 100 psi, rev it up to 1500 and it tops out at 110 to 115 psi. After it warms up, it drops down to about 45 psi. With warm oil at full load on the dyno, it's in the 75 to 80 psi range. __________________ 95' 2wd Junker Drag Truck 1502 HP Fuel-Only 12mm P7100 Pump SXE 472 over GTX55 116mm OEM 12v Block

08-09-2016, 10:10 AM	#5
Snedge Name: Snedge Title: Comp Diesel Sponsor Status: Not Here Join Date: Sep 2006 Location: Western Pa. Member`s Gallery Posts: 18,859	Perfectly fine.

08-10-2016, 05:31 AM	#7
Nor'Easter Name: Nor'Easter Title: Too Much Time Status: Not Here Join Date: Nov 2012 Location: Maine Member`s Gallery Posts: 947	Thank you gentlemen, much appreciated. __________________ Mike Stacked silencer rings. 1957 Cummins Power Wagon 2014 Regular Cab G56