351M oil pressure
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Junior User
Joined: Jan 2000
Posts: 76
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351M oil pressure
Gents,
I am checking to see if my oil preesure is ok. After running for a while, when I come to a light, the needle points at "o" on normal at 600 rpm and at cruise it is at "a" on normal. The motor has about 45k since complete rebuild. Thanks for the help.
I am checking to see if my oil preesure is ok. After running for a while, when I come to a light, the needle points at "o" on normal at 600 rpm and at cruise it is at "a" on normal. The motor has about 45k since complete rebuild. Thanks for the help.
Senior User
Joined: Jan 2001
Posts: 199
Likes: 1
From: Valley, NE
351M oil pressure
You know Tuff my 400m does the same thing, shows good oil pressure when cold, then when fully warmed up it drops at idle. My mechanic says this is normal, and my engine is original with very low miles.
New User
Joined: Jan 2001
Posts: 14
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351M oil pressure
Shoot, mine has tons of miles on it and it reads in the "A" range when cold and drops to almost naught at idle when warm. I see alot of posts like this and I am just curious if it is just make related or does this happen to all types of motors of this era?
Junior User
Joined: Dec 2000
Posts: 92
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351M oil pressure
[font size="1" color="#FF0000"]LAST EDITED ON 06-Feb-01 AT 01:54 PM (EST)[/font][p]Its just a thing with the 400. They all do it. Theres oil pressure. I bet you can hear it "pinging too". 
It will run for 100,000 like that and beyond. Most guys I know that have a 400 have the same problem. Aint Fords great?
It will run for 100,000 like that and beyond. Most guys I know that have a 400 have the same problem. Aint Fords great?
Senior User
Joined: Jan 2001
Posts: 380
Likes: 1
From: Meriden USA
351M oil pressure
If its really bad you might need mains or when oil heats up it thins out so it could just be normal from the oil heating up. I wouldnt worry about it unless its not even reading on the gauge.
Anthony DiPietro
79 F150 Ranger
Anthony DiPietro
79 F150 Ranger
