GMCforum: GMCnet » Cruise Oil Pressure

Home » Public Forums » GMCnet » Cruise Oil Pressure

Show: Today's Messages :: Polls :: Message Navigator

Cruise Oil Pressure [message #370432]

Wed, 31 August 2022 14:03

Tom Katzenberger

Messages: 399
Registered: June 2019
Location: Kingsville, MD

Karma: 4

Senior Member

Guys,

I am using Quaker State Full Synthetic 5W-30 (Green Bottle). At 2000-2500 RPM, 60MPH(+-), 195° thermostat, I am just running 20 to 23 PSI hot. Is that something I should be concerned about or is that more then enough PSI to push the oil through the engine completely?

It could also be a Stewart Warner gauge failure as I have had a few S/W gauge failures with this rebuild. The dash gauge appears to be indicating normal.

Thanks in advance and take care,
Tom K

Tom & Oki Katzenberger, Kingsville, Maryland, 1977 23' Birchaven, 455 C.I.D., Micro Level, Howell EBL-EFI Spark Control, Macerator, York Air Compressor, 6 Wheel Disc, Quadra Bag, Onan W/Bovee Ignition

Report message to a moderator

Re: Cruise Oil Pressure [message #370433 is a reply to message #370432]

Wed, 31 August 2022 18:26

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

Tom,

You are not in any danger. If you go back in this forum to 08 August and read the entire thread that was "Oil pressure woes", you will find the subject well hammered flat.
If you still have questions, come back and I will try to fill in what I missed.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

Report message to a moderator

Re: Cruise Oil Pressure [message #370434 is a reply to message #370433]

Wed, 31 August 2022 19:12

Larry

Messages: 2875
Registered: January 2004
Location: Menomonie, WI

Karma: 10

Senior Member

Matt Colie wrote on Wed, 31 August 2022 18:26

Tom,

You are not in any danger. If you go back in this forum to 08 August and read the entire thread that was "Oil pressure woes", you will find the subject well hammered flat.
If you still have questions, come back and I will try to fill in what I missed.

Matt

Here is the link to the thread Matt is referring too: http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=370312&rid=19&srch=oil+pressure#msg_370312

Larry

78 Royale w/500 Caddy
Menomonie, WI.

Report message to a moderator

Re: Cruise Oil Pressure [message #370435 is a reply to message #370432]

Wed, 31 August 2022 21:55

Tom Katzenberger

Messages: 399
Registered: June 2019
Location: Kingsville, MD

Karma: 4

Senior Member

Larry and Matt,

I read and re-read that thread many time and because of that I went with Larry's oil recommendation on Quaker State.

Several years ago I re-built an AMC 304 V8 for my CJ-5. Those engines suffered oil starvation at high RPM (Racing AMC AMX's). The rear main bearings failed as the oil was feed from front of the engine to rear. By the time the oil got to the rear there was very if any oil pressure. I had to drill out the block and run a stainless line in the valley from the pump to the rear so that the engine was feed both to the front of the crank and to the rear of the crank at the same time. There were other modifications like opening and polishing oil galleries.

Because of this I still worry about lower oil pressure. The old statement of 10 PSI for every thousand RPM has been driven into my head since I was a kid. If you guys say it is ok, I have a high degree of faith in both of you and I will carry on.

Thank you both for the peace of mind and all your help.

Take care and I hope to see you guys in Tennessee,

Tom K.

Report message to a moderator

Previous Topic:	Electronic parking brake (EPB) video
Next Topic:	Help!!!: Bad Rear Suspension Mounting Bracket

Goto Forum:

-=] Back to Top [=-

Current Time: Sat May 04 04:53:58 CDT 2024

Total time taken to generate the page: 0.00856 seconds