oil pressure
Thread Starter
|
Senior User
Joined: May 2002
Posts: 160
Likes: 0
From: usa
oil pressure
just a little vehical history before the question. i have a 69 f100 with a stock 360 manual transmission. i bought it from the second owner who bought it from the first owner, no dealers involved. the truck was serviced every 3000 miles since new and now has 73000+ miles showing. i installed a guage set ( cheap one) and after warming up the oil pressure reads 15 pounds at crusing (55-60) speed and about 5 pounds at idel. the truck doesn't smoke, leak oil and after putting just over 2500 miles on it has yet to use a drop of oil. the engine runs smooth and strong ( out preforming my 351w in my 88 f150). the only noise i can hear coming from the enging is an exhaust leak on the left exhaust manifold, in fact when in the cab with the windows up it's HARD to tell if the engine is even running. it does how evere run a little hot 195-210 with a 260 thermoswtat installed.
question... will this low oil presure cause it to overheat? and are there any tricks i should know about before installing a new oil pump? aside from priming the pumpand cleaning surfaces of the pan and block. what should the oil pressure be assuming the mains are good? at idle and crusing speed? i feel 5 pounds is way to jow.
thanks for any advise and help
question... will this low oil presure cause it to overheat? and are there any tricks i should know about before installing a new oil pump? aside from priming the pumpand cleaning surfaces of the pan and block. what should the oil pressure be assuming the mains are good? at idle and crusing speed? i feel 5 pounds is way to jow.
thanks for any advise and help
More Turbo
Joined: Jan 2000
Posts: 507
Likes: 2
From: Pasadena US
oil pressure
oil pressure is just not dependent on an oil pump. Clearances are just as if not more important as well as no clogs. I would check it with a mechanical guage before doing anything. Make sure it is mechanical. You could have a very clogged system, pickup screen etc. This would keep pressure down. This could happen over time, especially if the opil is not changed regularly.
Thread Starter
|
Senior User
Joined: May 2002
Posts: 160
Likes: 0
From: usa
oil pressure
changed the oil pump this morning. it was a whole lot easier than on my 88 f150. dropped the oil pan poured the oil that was left in it out than sat downed and cussed.
looks like at sometime the timing chain broke. there were teeth and metal flakes all in the bottom. why would they replace a busted timing chain and not drop the pan and clean it out?? 
anyway got it back together i'm at 10 psi at 900 rpm and topping out at 20-25 at about 4000rpm. i'm afraid the damage has been done. i couldn't see anything broken or worn out, but i don't see how it could run at all and not do some damage. at least i have a GOOD 351 i can put in when this one goes. 
looks like at sometime the timing chain broke. there were teeth and metal flakes all in the bottom. why would they replace a busted timing chain and not drop the pan and clean it out?? anyway got it back together i'm at 10 psi at 900 rpm and topping out at 20-25 at about 4000rpm. i'm afraid the damage has been done. i couldn't see anything broken or worn out, but i don't see how it could run at all and not do some damage. at least i have a GOOD 351 i can put in when this one goes. 
Posting Guru
Joined: Jun 1999
Posts: 2,415
Likes: 3
From: Comox Valley, Canada
oil pressure
Hope you have room to store that 351 for a little while until that FE reaches the end of its life expectancy, say like about 10 years or so 
Should run for the proverbial "ever" if you keep up the regular servicing, IMHO.
Sparky
Should run for the proverbial "ever" if you keep up the regular servicing, IMHO.Sparky
Thread
Thread Starter
Forum
Replies
Last Post
kevbits
1967 - 1972 F-100 & Larger F-Series Trucks
41
Mar 21, 2016 07:02 PM
NeilM67
1999 - 2003 7.3L Power Stroke Diesel
13
Oct 3, 2015 03:26 PM
