Oil pressure problem
FTE Legend
Joined: Nov 2015
Posts: 30,940
Likes: 4,125
From: Angier, NC
Thinking outside the box, is it possible to blow compressed air into where the oil filter mounts and maybe blow the crap off the pick up screen, it might buy you some time...
FWIW, back in 1991, we had a ford crate motor installed when the truck had 96,000 in its 302, because of rod knock.
FWIW, back in 1991, we had a ford crate motor installed when the truck had 96,000 in its 302, because of rod knock.
Also he said no noise from the lifters / rockers when cold and the PSI is higher but when the motor gets up to temp and the PSI drops the lifters & rockers make noise.
Again bad bearings in my book and no way around it.
Dave ----
Tuned
Joined: Sep 2014
Posts: 472
Likes: 105
Not neccesarily Dave. Some "materials" will get sucked into the screen and not come out. The increased velocity of the gear pump will suck in more debris and choke the output.
I hsd a beautiful two tone 72 from the carolinas I experidnced this with.
oils of the past and poor combustion left engines full of sludge, the sludge when combined with modern oils and heat would start to break down and move around.
I remember pulling a 289 apart that was so full of sludge thet only places it wasnt was where the pistons snd rods traveled.
I dont doubt the engine is worn out at this point but....
I hsd a beautiful two tone 72 from the carolinas I experidnced this with.
oils of the past and poor combustion left engines full of sludge, the sludge when combined with modern oils and heat would start to break down and move around.
I remember pulling a 289 apart that was so full of sludge thet only places it wasnt was where the pistons snd rods traveled.
I dont doubt the engine is worn out at this point but....
Tuned
Joined: Sep 2014
Posts: 472
Likes: 105
Older guys might remember adding automatic transmission oil to a hot engine right before an oil change to help clean out the engine.
the vehicle would be warmed up and half quart of ATF added to the engine and left to idle for about ten minutes.
This might be more of a "northern" thing because of high humidity.
never the less it did work.
Some guys wouldnt do it, their logic was this stuff is coming loose and could possibly do more damage.
the vehicle would be warmed up and half quart of ATF added to the engine and left to idle for about ten minutes.
This might be more of a "northern" thing because of high humidity.
never the less it did work.
Some guys wouldnt do it, their logic was this stuff is coming loose and could possibly do more damage.
FTE Legend
Joined: Nov 2015
Posts: 30,940
Likes: 4,125
From: Angier, NC
Older guys might remember adding automatic transmission oil to a hot engine right before an oil change to help clean out the engine.
the vehicle would be warmed up and half quart of ATF added to the engine and left to idle for about ten minutes.
This might be more of a "northern" thing because of high humidity.
never the less it did work.
Some guys wouldnt do it, their logic was this stuff is coming loose and could possibly do more damage.
the vehicle would be warmed up and half quart of ATF added to the engine and left to idle for about ten minutes.
This might be more of a "northern" thing because of high humidity.
never the less it did work.
Some guys wouldnt do it, their logic was this stuff is coming loose and could possibly do more damage.
Now I also knew what the inside of the motor looked like as I pulled the side & valve covers and oil pan to replace the leaking gaskets so they were cleaned before I installed them.
So this ATF is more to clean the oil passages than sludge sitting in the oil pan or under side of the valve cover.
He can try the ATF flush but I dont think it will bring the PSI up when the motor gets up to temp but thats me.
Dave ----
Lead Driver
Joined: Apr 2002
Posts: 5,346
Likes: 1,250
The OP hasn't checked back and hasn't answered the question about how he is monitoring oil pressure. A new reliable mechanical guage or the stock guage. He did say zero oil pressure but how does he know? The oil pressure sending units have been a problem for Ford stock oil pressure guages as when warm they read low. It's a temperature window. After 86 they went to a fake guage that reads mid normal if there was 5 psi or more. Basically an idiot light in guage format.
So we'll have to wait to see what the OP says.
Thread
Thread Starter
Forum
Replies
Last Post
OldFords
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
17
Jun 4, 2007 03:03 AM
GSchretter
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
5
Jan 21, 2000 02:14 PM
