New Guy With Oil Pressure From Bad To Worse!

[SnowDrifter]

Agreed. A bit low still, but better than nothing. Curious why you run 0?

IMO 5w30 is out dated just as is 10w30.

Will give an in depth explanation if interested when I get back to the computer

 

[Snowbound]

Agree with iamdub. Check with mechanical gauge. We all know how these great stepper motors are on the GM clusters. Could be the gauge and not the sender at all. What would have me concerned is the ticking you hear. Your oil filter being dry does prove that the suction wasn’t seated in the pump but now that it is you should have more pressure than that. Sounds to me like bearing clearance issue. I’ve seen this happen due to the oil diverter barbell. It’s a crappy piece of plastic that blocks the oil passage directing oil to the filter. They are undersized and allowed unfiltered oil to go directly to the cam bearings and cause premature failure. They have billet ones available now and are cheap. I’m sure you can find it with a google search. Best of luck and I hope you get ahead of this.


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[HiHoeSilver]

Agree with iamdub. Check with mechanical gauge. We all know how these great stepper motors are on the GM clusters. Could be the gauge and not the sender at all. What would have me concerned is the ticking you hear. Your oil filter being dry does prove that the suction wasn’t seated in the pump but now that it is you should have more pressure than that. Sounds to me like bearing clearance issue. I’ve seen this happen due to the oil diverter barbell. It’s a crappy piece of plastic that blocks the oil passage directing oil to the filter. They are undersized and allowed unfiltered oil to go directly to the cam bearings and cause premature failure. They have billet ones available now and are cheap. I’m sure you can find it with a google search. Best of luck and I hope you get ahead of this.


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You talking about the bypass valve?

 

[Snowbound]

You talking about the bypass valve?

I’ve always called it the barbell. It’s in the oil passage, has an o-ring on it and blocks the passage, directing the oil thru the filter. I’ll see if I can get a pic.


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[Snowbound]

Here you go.




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[Snowbound]

Not saying it’s the culprit but I’ve seen these cause premature cam bearing failures.

They get brittle and the o-ring doesn’t block the oil flow and allows non filtered oil to circulate thru the engine. First stop, cam bearings. Although I should add, the failure I seen had a lot to do with lack of maintenance. But the cam bearings were bad and needed to be replaced. The same engine, the rod and main bearings showed wear but cam was worse.

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[HiHoeSilver]

Not saying it’s the culprit but I’ve seen these cause premature cam bearing failures.

They get brittle and the o-ring doesn’t block the oil flow and allows non filtered oil to circulate thru the engine. First stop, cam bearings. Although I should add, the failure I seen had a lot to do with lack of maintenance. But the cam bearings were bad and needed to be replaced. The same engine, the rod and main bearings showed wear but cam was worse.

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Interesting, thanks.

 

[Lancem]

On oil pressure 10 psi per 1000 rpm is considered sufficient in most circles, 20 at idle you should be fine.

 

[SnowDrifter]

On oil pressure 10 psi per 1000 rpm is considered sufficient in most circles, 20 at idle you should be fine.

20 at idle is fine if you like engine rebuilds. This isn't the 70s. That old passed around rule should Be tossed out the window

 

[Lancem]

From Chevy performance on the L96 engine
Oil Pressure (Minimum, with hot oil):..............6 psig @ 1000 RPM .......................................................................18 psig @ 2000 RPM .......................................................................24 psig @ 4000 RPM

Same spec for the LS3 series