Oil Pressure Question

Reply Subscribe

Thread Tools

Search this Thread

Dec 30, 2006 | 01:53 PM

CAJUN C4

Thread Starter

Safety Car

Joined: Feb 2000

Posts: 3,771

Likes: 0

From: MANDEVILLE, LA La

Oil Pressure Question

The shop manual says oil pressure should be 50 to 65 Psi at 2,000 RPM>

What's yours?

Mine is about 35 Psi when full operating Temp.

Dec 30, 2006 | 03:57 PM

BADDUCK

Le Mans Master

Joined: Jun 2006

Posts: 5,642

Likes: 5

From: One day you're a Comet...the next day you're dust... Arkansas

about 45 warmed up and about 50 at highway speeds.

Dec 30, 2006 | 05:33 PM

vader86

Team Owner

Joined: Sep 2001

Posts: 62,139

Likes: 1,728

From: Athens AL

C7 of the Year - Unmodified Finalist 2021

C4 of Year Finalist (performance mods) 2019

It should be 45-60 at cruise, and about half of that at idle....getting lower as the engine gets hot.

Mine runs about 60psi at hwy cruise.

Dec 30, 2006 | 07:54 PM

86GoldProject

Pro

Joined: Feb 2005

Posts: 560

Likes: 0

From: Hamilton New Jersey

factory sending units are known to go bad and be inaccurate even when new, before worrying about oil pressure hook up a mechanical gauge and see what it says.

Dec 30, 2006 | 08:39 PM

C4Techie

Racer

Joined: May 2006

Posts: 293

Likes: 0

Quote:

Originally Posted by CAJUN C4

The shop manual says oil pressure should be 50 to 65 Psi at 2,000 RPM>

I have never seen anything like that in mine. In what section, chapter, etc, are you finding that?

Jan 2, 2007 | 09:08 AM

CAJUN C4

Thread Starter

Safety Car

Joined: Feb 2000

Posts: 3,771

Likes: 0

From: MANDEVILLE, LA La

Quote:

Originally Posted by C4Techie

I have never seen anything like that in mine. In what section, chapter, etc, are you finding that?

I think it's in the front of the Engine section under "specifications" in my Haines Manual. I didn't look in my Helms Manual.

Mine is over 60 when cold but about 35 Psi @ 2,000 RPM when warmed. At idles goes to 10-20 sometimes.I ws wondering if I had a bad Oil Pump? The engine has 25K miles on it.

Jan 2, 2007 | 09:16 AM

rick lambert

Le Mans Master

Joined: Oct 2003

Posts: 6,130

Likes: 2

From: seattle WA

My 87 with 103,000 runs in the same range as Vaders, With only 25K on an engine I would expect higher at idel than what your seeing, but before I dropped the pan I'd hook up a manual guage, quite possibly your sending unit is in need of replacement...btw was your engine build clearanced?