460 oil pressure
Thread Starter
|
Freshman User
Joined: May 2002
Posts: 26
Likes: 0
460 oil pressure
I have a 78' F-150 with a 72' 460. I just recently installed a gauge to replace my dummy light and i never had my light come on. Im not sure what my pressure should be at but when my engine is cold it runs right below 50, as it warms up it drops to 25, when im sitting still it drops to around 6 and sits around 12+ when just cruisein. Is that normal or what should it be at?
Senior User
Joined: Oct 2002
Posts: 368
Likes: 0
From: del city,oklahoma
460 oil pressure
that sounds kind of low to me but still high enough not to worry about it if that makes any sense. mine is 60 when cold and 45 when warm. but ive also had 400s with less that 5 pounds at idle. as long as its not rattling or overheating then you have sufficient oil pressure. and its not droping on a regular basis
New User
Joined: Jun 2003
Posts: 23
Likes: 0
460 oil pressure
You know 460's are funny in that way..I have two trucks an F-250 and a f-350 both have the High and Low gauge and a 460 engine. I found they both run the same about 1/2 inch above the low mark. I will say this: One time I put 10-30 in the f-350 and it dropped it to nothing..Now I run 20-50 and I have good oil pressure. Hope this helps..
Moderator
Joined: Dec 2001
Posts: 22,436
Likes: 17
From: Louisville,Ky.
460 oil pressure
The engine is loose. Alot of bearing clearance. It will live as long as you don't wind it way upstairs alot. Below 3000 rpm, it should last a long time. My 460 has 180,000 miles on it and it still runs strong. 60lbs cold, idle hot = 10 cruising = 25. It doesn't knock, it just has alot of clearance in the bearings. You can try 20W50 to get the pressure up some. I believe the Chilton's manual says 35 to 45 @ 2000rpm is what is recommended.
Elder User
Joined: Aug 2001
Posts: 508
Likes: 0
460 oil pressure
voltsnxs: What year trucks do you have? Some time in the late 80's, Ford changed to an "idiot light guage". There is a real gauge in the dash, but just an oil pressure switch on the engine. A resistor makes the gauge read an intermediate value when the pressure is OK.
New User
Joined: Jun 2003
Posts: 23
Likes: 0
Trending Topics
Posting Guru
Joined: Mar 2003
Posts: 1,349
Likes: 3
From: Cloud USA
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
Cargo Master
Joined: May 2001
Posts: 3,208
Likes: 13
460 oil pressure
The pressure switches used on idiot lights and 87 and up gauges will turn off the light or send the gauge to midrange with as little as 4 lbs of oil pressure. Loose engines can survive that low as long as they are not abused with rpm or heavily load.
Junior User
Joined: Apr 2002
Posts: 54
Likes: 0
From: Idaho
460 oil pressure
Precisely why I rebuilt my engine at 135,000 miles. The oil "gauge" showed good pressure, but the oil pump was on it's way south, providing a whole 25 PSI during higher RPM runs up steep Idaho grades, towing, in the heat of the summer. I installed a "real" gauge, which identified the problem.
Thread
Thread Starter
Forum
Replies
Last Post
460frank
1987 - 1996 F150 & Larger F-Series Trucks
18
Apr 22, 2017 03:11 PM
PapaBearYuma
1973 - 1979 F-100 & Larger F-Series Trucks
36
Nov 5, 2016 08:44 PM
Sooper Camper
1973 - 1979 F-100 & Larger F-Series Trucks
9
May 24, 2013 12:31 PM
