Oil pressure gauge?

[ghitch75]

Just changed the fuel/water separater filter(Thanks to Valence!!!) and went for a cruse down the road........Had the head lights on and when i looked at the oil pressure gauge and it was reading -5 about....It was under 0!!!!........I stopped and shut the truck down and turned the lights off........I fired it back up and the oil pressure was at 15# then i flipped the lights on and it dropped to under 0 again off lights and it came back up.....I reached under the dash and shuck the wires on the gauge and nothing changed..........Took a look and the grounds on the firewall and all looks good.....Anyone else have this trouble?

 

[porkysplace]

Did you take the grounds off and clean them or just look at them ?
TM 9-2320-272-24-1
troubleshooting section
page235

TM9-2320-272-24-1.pdf

 

[AMGeneral]

One of the reasons I ditched the electrical gauges and switched to this..

http://catalog.baileymotorequip.com/item/pressure-and-vacuum-gages/pressure-gages/item-1023

 

[Ue413]

Is that a direct fit in dash that you run tubing from block port to gauge?

 

[74M35A2]

If a Cummins has oil, it has oil pressure. I switched to a correct military 270 degree mechanical sweep gauge that illuminates through the clear case, now you can really feel what is going on with it, the pressure needle swings up and down with the tach. The electric gauge is about useless, it's resolution and accuracy are so terrible.

 

[AMGeneral]

Is that a direct fit in dash that you run tubing from block port to gauge?

Yes,direct bolt in to the stock dash holes,I used 4000 psi hyd hose(overkill I know,but it is what we have at work).

 

[sed6]

If a Cummins has oil, it has oil pressure. I switched to a correct military 270 degree mechanical sweep gauge that illuminates through the clear case, now you can really feel what is going on with it, the pressure needle swings up and down with the tach. The electric gauge is about useless, it's resolution and accuracy are so terrible.

Got a pic or a link to the gauge?

 

[74M35A2]

http://www.steelsoldiers.com/showth...chanical-Engine-Oil-Pressure-Gauge-Swapped-In