Recent content by Dashash

Hooked up the mechanical gauge and lo-and-behold I got 15 PSI at idle normal 40-60 at speed. I'm just puzzled as to how my oil pressure sender thing just happened to fail at the same time I had replaced the relief valve... huh.

Ok, cheers. I'll break out the mechanical gauge today and get a reading. I reused the old spring. I guess cutting off some of the spring would lessen the force required to open the valve, thus relieving pressure at a lower PSI... is this correct?

Hi folks, Was having an issue last few months where each cold start, oil pressure would take a solid 10 seconds or more to build. Once it rose, it steadied out at the second tick mark which I measured a while back to be right around 55psi. Great. Well, I wanted to fix the long oil pressure...

Please report the results!!!

So I was parked on an incline for sure, but I'm having a hard time quantifying the magnitude. It was enough of an incline that a small person would barely be able to keep the vehicle from rolling backwards if the vehicle was in neutral. I agree that the combination of old vehicle, incline, and...

Case closed, gents. Compressed air into the dipstick tube did the trick! Looks like it was a priming issue after all. Can't thank everyone enough for the assistance. Would have cost me lots of $$$ had I taken it to a shop. Cheers 🍺

I like that idea. Will try to pressurize sump tomorrow and see if I can get some pressure. After examining the oil system diagram, it appears that the oil pump consists of two gears, and it's hard to imagine these failing. I've attached the diagram from my FSM for future readers.

Buddy towed me to the shop on base. Got the relief valve pulled, put a gallon of extra oil in, and pulled glow plugs. Cranked engine by hand, but alas, no oil came out of hole where relief valve was. Thinking of dropping the oil pan tomorrow. It appears either my pump is not working at all, or...

Interesting trick. I'll give that a shot tonight after work.

Added oil to full line. Turned it over, gave it a good 20 seconds of run time before shutting it off. Still no oil pressure at mechanical gauge. Really big bummer.

It's 30-40 F during the day. Running 15W-40.

Is the oil scavenge that sensitive to incline? I would think the pickup would be in the very bottom of the oil pan, but I have no idea. I'm very hopeful you're right.

Interesting comment about the angle...and with the low oil level on the dipstick...I think you're on to something. I was parked at work for ~12 hours in a parking spot that was indeed on an incline before my issues began. With this new information, my plan of attack tomorrow will be to roll it...

Just ordered replacement relief valve and spring. The reading I've been doing regarding that piece is that when it fails it results in an over-pressurization situation. Is there a failure mode that could result in an under-pressurization? I will also inspect the oil filter relief valve, drain...

Fantastic. Thanks. I'll look for a replacement valve pronto. Nice guide, too!