Search results for query: no oil pressure

The 6.4 in my truck has hot idle oil pressure at 30 PSI since new.

No coolant associated with the intake. Most likely water neck,water pump,header bolts or studs in head. Oil can travel up threads of intake mounting bolts. Steel valve covers very prone to leak oil if not strait or sealed properly. PCV is very important to keep crankcase pressure from pushing...

Same here. 45 years of doing my own oil changes. The problem I'm having is engine lost oil pressure, changed pump (440) and still no pressure. Reaching out for other ideas what causes pressure loss. I welcome ideas on making install is correct.

Nice looking. You need to post some more pictures. You will get a hundred answers but I like WIX filters and I select a multi-grade, non-synthetic oil that is thick enough to give me 20 psi oil pressure at hot idle in hot weather. For me that may be Driven 10W-30, Driven 20W-50 or Rotella...

Also should have mentioned no Fram filter, Wix.

Problem: installed new oil pump, started engine and had no oil pressure. Solution: prime oil pump with assembly lube before installing new oil pump. Lesson learned, dry oil pump will not draw oil from pan.

IT'S ALIVE! 2.0 Yesterday was the culmination of time, hard work (for me), and money. I primed the oil pump holding 55 psi, poured some Sunoco 93 down the carb, cranked only two/three times so fuel got to the carb and - boom - it fired right up! 20 Min 2000 RPM - the temp never went above 180...

Been out there a few hours, everything is tight. So it appears it the main seal. My oil pressure gauge is showing at 75-80 when warm. Well, buy my dream car after all these years and its goinf to have to sit for a while. Gotta love it! LoL

That sounds like detonation to me. Maybe post up what you've done about that.

I cut the shafts into pieces and removed the rockers. Everything else looked great, so reinstalled with new lifters and shafts with original rockers. Set lash. After break in, car idles and runs great but has hellacious (I think) valvetrain noise with any load applied. No way it's detonation...

open it just enough to get oil squirting out while idling or with someone cranking starter as it starts then tighten before u get sprayed with oil

...in towards the timing gears and look through the galley plug hole in the back of the engine, you can see that you most definitely forgot to put the plug in! The cost of a new gasket now is almost priceless compared to the frustration of trying to figure out why there is no oil pressure later on.

Check to see if if a lifter popped out. If a rocker arm breaks, and I've broken a few, a tappet can be tossed out of it's bore and all oil pressure is lost.

...see oil dash light stay lit after start up but would go away. But now oil light stays lit. Put mechanical oil gauge on and see no oil pressure. Replaced oil pump with Rockauto Mellings oil pump. Checked that distributor drive was spinning before installing oil pump, which I could feel...

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So, when I bought the car, I was told the engine was rebuilt. Don't know if its true or not as the guy lied to me on a bunch of things. Maybe his version of rebuilt was paint it and make it look new. I changed the pump and pickup tube as I figured it was an easy and fairly cheap way to see if he...

I saw that...what I see at idle tells me no way that is the real problem. Thin oil, bad parts, lack of oil changes maybe. 5.7 may have lower pressure with 5-20 at idle. But so many make it to 200k miles so who really knows.

Well my car arrived yesterday and I am becoming a little bit disappointed in it's condition. Lot of oil coming from around the filter/pump area, which was not as bad the weekend I bought it. I plan to clean it up and do an oil change (the current filter says it was done 5/23. I am swapping to a...

I guess the oil pressure gauge decided to work again. No reason - it worked, then it didn't work, and now it works again... Tomorrow will be a different story, I'm sure. This is our first time out on a street run, but also the first time we've had a full tank of fuel. The gauge isn't reading...

Just to make sure, did you change anything else previously? (Engine swap, Trans rebuild? other/different governor, rear axle ratio?) To know exactly what is going on you should measure the Line pressure and governor pressure to see if they are in specifications? Mostly, if the original governor...