Oil pressure in my 351C

June 17th, 2008, 02:07 PM	#1
kevnsue Newbie Join Date: May 2007 Posts: 47	Oil pressure in my 351C I have a pinto with a 351C in it. It run's 80lbs of oil pressure at idle, but when you snap the throttle the oil pressure goes down instead of up. It seem's to be very unstable off of idle. any suggestions would be great. I have put new oil in and still has the same problem. I am running royal purple 5-30 Thanks Kevin.

June 17th, 2008, 02:13 PM	#2
Smirnoff Regular 1982 5.0 t-top no proof of purchase Join Date: May 2008 Location: catty PA Posts: 224	maybe your oil pressure sender is tweaking out

June 17th, 2008, 04:29 PM	#3
ryans88gt MM Fanatic Join Date: May 2007 Location: Bloomington, IL Posts: 3,647	pressure relief in the pump could be stuck or the sending unit has taken a crap. 80 lbs of pressure is not a good thing. __________________ 89 LX 515 hp 497 ftlbs 11.3 @ 125 mph 88 GT 11.4 @ 118

June 17th, 2008, 05:18 PM

Modified88Dreamer

Enthusiast

Nowhere to be found

Join Date: Nov 2006

Location: Moving back home to Florida

Posts: 630

Originally Posted by ryans88gt

pressure relief in the pump could be stuck or the sending unit has taken a crap.

80 lbs of pressure is not a good thing.

+1 I'd say 65 at highest

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June 17th, 2008, 05:50 PM	#5
78mach1 Hardcore Enthusiast Join Date: Oct 2007 Location: utah Posts: 1,087	what kind of guage do you have?...electronic? go and buy a mechanical one and see waht your readings are __________________ In Memory of Nick Goris.

June 17th, 2008, 06:43 PM	#6
r.barn Regular 1989 LX Vert - 1993 Notch Fast Join Date: May 2008 Location: Houston Posts: 326	+1, hook up a mechanical gauge and start from there. Most engines should see about 20psi at idle and 60psi at WOT no more. __________________ The last President elected in anger of previous President was ....... Jimmy Carter God Help Us

June 17th, 2008, 07:05 PM

83fox

Enthusiast

1983 mustang lx

Join Date: Apr 2008

Posts: 504

Originally Posted by r.barn

+1, hook up a mechanical gauge and start from there.

Most engines should see about 20psi at idle and 60psi at WOT
no more.

i agree

only diesel motors should have around 70-80 psi at or around idle haha

June 17th, 2008, 09:33 PM	#8
kevnsue Newbie Join Date: May 2007 Posts: 47	I have a mechanical guage. That is why I am so concerned. if it was electric It would not bother me to much. Thanks for all your help.

June 17th, 2008, 10:43 PM	#9
78mach1 Hardcore Enthusiast Join Date: Oct 2007 Location: utah Posts: 1,087	well my second guess would be maybe one of your gallies are plogged, or there is some type ok blockage or like ryan said, your pressure realief valve could be stuck __________________ In Memory of Nick Goris.

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