No oil Pressure

[skydawg]

I changed filter cartridges and oil lines on the two canister filters on my ENDT 673 engine.I filled both filters with oil.That was six weeks ago.Finally started it,and after 30 seconds of idling,zero oil pressure,according to the gauge.I would always get 60 psi showing within 5 sec.The dash gauge appears to be fed from a line going to the turbo.Is there a way to positively check that I have or don`t have pressure in the engine? Thanks.

[h67st]

You could pull the gauge line off where it comes off the turbo, crank the engine with the shutoff pulled and see if oil pumps out.

[mowerman]

That’s kind of scary. Did you check and make sure the pan is full?

[mowerman]

What I changed mine I only had 20 pounds. I turned it right off and discovered it needed more oil. Good luck.

[skydawg]

Oil spurted out of the big filter when I opened the vent and cranked the starter,but no oil going to the turbo feed line,and therefore none to the gauge.If anyone in northwest NJ is interested in a pretty nice single axle B61,I`m ready to move on.

[mowerman]

OK, that’s funny. Shit thats what I think about the DM. Sometimes I wish I could just twitch my nose and it would disappear…. Bob 

[steve s.]

Don't sell your truck!  If you had oil pressure before your oil change, you should still have oil pressure. You probably need to bleed air out of the filter.  Do you have the large full flow/ bypass filter? That is the one with 3 lines on the bottom. If you had some oil come out the vent, you must have some pressure. They can take a bit to get all of the air out as I recall. There are several places on the drivers side of the engine where you can pull out a plug and install a test gauge, if you need to. Good luck.

[Geoff Weeks]

If it were me, I would run it a bit longer. No load, not above idle, but let it go for a full minute or more. There is lube on the bearings and crank, even if it is not pressurized, it isn't dry. It may take a bit to force the air out.