460 lost oil press

Reply Subscribe

Thread Tools

Search this Thread

Mar 19, 2010 | 08:55 PM

pauls painting

Thread Starter

Senior User

Joined: Dec 2005

Posts: 171

Likes: 1

From: vandalia il..

460 lost oil press

well my 77 4x4 250 lost oil press yesterday still runs but dash gauge stays at 0 when warm.
my question is i have a rebuilt 400 that i can put in but do i need 400 perches to put in back in? the 460 was in it when i bought it.
and will perches from 77 2wd work?
also how should i rebuild c6 since engine is out stock or mild build

thanks paul

also found local co. who will make me 4inch lift springs for 400 front and back . should i get them with military wrap or not, truck is used for hauling and towing

Mar 19, 2010 | 09:48 PM

Willywat

Freshman User

Joined: Feb 2005

Posts: 32

Likes: 0

have you put an oil pressure gauge on to the motor it's self to see if it is just the dash gauge? maybe the dash gauge just gave it up

Mar 19, 2010 | 10:42 PM

bendog

Senior User

Joined: Sep 2005

Posts: 286

Likes: 1

From: Medford, Oregon

Yup, probly just the guage, my 73, 460 did the same thing only when warmed up. I reasoned that the lifters would have lost pressure and it'd be clattering, not to mention the engine would have stopped rather abruptly. I drove it for about six months like that. Check it with a mechanical guage.

Mar 19, 2010 | 10:55 PM

pauls painting

Thread Starter

Senior User

Joined: Dec 2005

Posts: 171

Likes: 1

From: vandalia il..

im going to try and check in morning if its not raining

Mar 20, 2010 | 05:44 AM

duste

Laughing Gas

Joined: Apr 2001

Posts: 868

Likes: 3

From: New Glasgow, Nova Scotia

My 460 did the same , lost it's pressure all of a sudden and it was the sending unit at fault. If you had good pressure and it just went away quickly it is usually an indication problem and not in the engine, plus the sending unit is under 20 bucks and 5 mins to change.

Mar 20, 2010 | 12:05 PM

johaner78

Elder User

Joined: Feb 2005

Posts: 530

Likes: 0

From: in country near Boone, IA

i would suspect the sending unit or the guage went bad if the motor still runs without making noise. Back in high school, i drove the old family cruizer to school ('74 Ford Galaxy 500 w/ 400 engine) I drove that thing 2+ years with the oil light on!!! Ran like a champ - over 160,000miles and didn't burn or leak a drop of oil. Wish I still had that engine.