So I just replaced my oil cooler because it was leaking oil into coolant. All back together no oil pressure gaskets are correct they match old ones, mechanical gauge no pressure removed filter it's empty remove cooler to check for a possible blockage nothing. Gota prime it or something? Had oil pressure when I pulled it in
For what it's worth, back in the day, when that happened to our hot rod gassers,sometime if you Crack loose the hose fitting in the back of the guage while turning over the engine it would spit out air then hear comes the oil,tight back up and try...jmo
I'd double check for the right gaskets... Even with an empty oil filter my engine makes oil pressure about 5 seconds after startup... Oil pump is before it so it shouldn't have any trouble priming
If it was me I would unscrew the filter and carefully. Then using a hand oil can and pump several pumps of fresh oil down the side for the oil pump to prime it back up. You can typically use a piece of vinyl tubing on the oil can to extend it out for you. The outside hole of the filter base not the threaded steam.
I'm uncertain about all the other ideas... But either way you need to push oil down to the oil pump not into engine. The turbo fitting I would assume its after the filter so it will not go to the oil pump if so. I'm not certain of the test plug either if its before or after the filter again. This why I suggested what I did so you can get the oil to the pump. I'm not sure if you got to fill the oil cooler to or is it after the filter?
The ports are post filter you can look straight into the filter from the turbo feed, I suppose pressure differential would just force it through the engine not back through the oil pump
Ok so pressure filled the engine through the turbo port then filled the cooler and such like Michael said, filled the filter, nothing, took filter back off and it's empty, filled it tried again, empty filled it a third time tried it, empty but no glimpse at any flow
One more thing I'd try is to fire it without having the oil filter on... worth a shot at this point.. If you have a suction gun or something, perhaps try sucking oil up into it so you dont' need the engine running
had a similar situation with an ole boy who knew a former boss...he had changed the oil cooler also(never asked him why, either), and it was a 24 valve...had no oil pressure...so we slapped on a known good old oil pump(we always put new ones on rebuilds), nothing doing...messed around for a while, nothing...wound up putting 5 gallons of diesel in the crankcase, and it did finally get pressure...i wasn't there when bossman done that, so i don't know what the hell he wound up doing after that, but the truck is still going that i know of haha
I work till 10 during the week and work on it after work I was sick of 3am bedtimes when I'm up again at 8, I haven't messed with in a couple couple days, I tried removing pan but couldn't get motor high enough to get it out
Yea that's the process I'm doing just didn't have bolts loose enough to clear the lips and they're rusted into the motor mounts 1 am I snugged pan back up with a couple bolts and said I try another day
This is really concerning me as I have leaking oil cooler gaskets and was just gonna replace the gaskets and cooler all at once.
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