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Re: Worn out engine - WWYD? [Re: topside] #2805260
08/04/20 11:29 PM
08/04/20 11:29 PM
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SRT6776 Offline
I hate internal combustion engines!
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I'd think you should be able to find a good 400M out of some granny car for peanuts, car included. Truck is clean and solid, I'd try that, find a late 70's land yacht being given away.

Re: Worn out engine - WWYD? [Re: NITROUSN] #2805276
08/05/20 05:10 AM
08/05/20 05:10 AM
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Germany
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Originally Posted by NITROUSN
Originally Posted by not_a_charger
Originally Posted by NITROUSN
D] Roll a set of bearings in it along with a new oil pump and drive it.


Thought about that, but the engine has 189k on it. I'm concerned I'd be throwing good money after bad if I did that.


While that is always a gamble, in my opinion it would be a good gamble. Rock auto rods, mains, oil pump and pan gasket less than 200.00 with good parts. Cheaper less. If it bothers you to do so go with C and heavier oil which might help some.


iagree

Carsten

Re: Worn out engine - WWYD? [Re: poorboy] #2805282
08/05/20 05:24 AM
08/05/20 05:24 AM
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N.E. OHIO, USA
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Originally Posted by poorboy
I'd start with verifying the gauge isn't lying about the oil pressure being low. Use a real mechanical gauge. If it really is low, I'd probably try thicker oil and see what that did for it. The next step would be a compression test, and maybe a leak down test. I guess I'd really want to know what condition the motor is in. If the compression and leak down tell you the motor is pretty sound, I'd roll in the rod & main bearings, new oil pump, and a pan gasket, and maybe that timing chain and gears.

If it fails muster on the real oil pressure test and fails on the compression test, save your money for a reman motor, and then drive this one until it retires itself. I've seen low oil pressure Ford motors run a long time without issues. Gene


And what Kevin said too:

Quote
I'd start with verifying the gauge isn't lying about the oil pressure being low. Use a real mechanical gauge.

That said as before Mike just run it if it blows then deal with it i ran a 351 with a rist pin knock and low oil pressure for 40,000 miles and if you need I have a 460 here


I replace my oil pressure sending unit every time I start getting low oil pressure gauge readings and it immediately jumps back up into the mid to high range on the gauge. I have an '85 E350 with a 6.9 liter (420) diesel that I have driven since new in '85 with over 400K miles. Just changed the fuel injectors, fuel return lines, fuel filter, oil, oil filter, and going to change the oil pressure sending unit just for that reason even though the pressure gauge is reading within normal range but gets so much better (looking on the gauge wink that it makes me feel good grin I don't know if it's because of the diesel oil condition from soot (?) that the sending unit starts to read lower as time goes by but it sure makes a difference with a new unit??

Agree with checking the oil pressure (and replacing the oil pressure sending unit) first before I did anything else.

Mike if you need any body sheet metal check out Mill Supply they are near by and some of the sheet metal is still being stamped out in Cleveland near you up

MileR


NICE OLD TRUCK THERE Mike I really like it up...........................even though it's a FORD..... laugh2 wink

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Re: Worn out engine - WWYD? [Re: A12] #2805289
08/05/20 06:38 AM
08/05/20 06:38 AM
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Puttin' on the foil in Charles...
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Thanks everyone.

Oil pressure was checked with a mechanical gauge and confirmed low. Assumption was it was the oil pump, so the plan was to replace the pump when doing the rear main seal. Disassembly found that the bearings are worn. frown

It currently has 10W-30 in it, so making a change there might help me a little.

And Kevin, I'd love to drop a 460 in it, but my understanding is that it's not a direct bolt-in.


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Re: Worn out engine - WWYD? [Re: not_a_charger] #2805296
08/05/20 07:37 AM
08/05/20 07:37 AM
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Southern Maryland
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Not shocked, Your diagnosis was my immediate thought. Lower end rebuild. Get crank turned, rods resized, new bearings and might as well do new oil pump.


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Re: Worn out engine - WWYD? [Re: not_a_charger] #2805298
08/05/20 07:48 AM
08/05/20 07:48 AM
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United Socialist States of Ame...
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Fix it up and drive it Mike! Then you know exactly what you have! Good trucks are hard to come by that are reasonably priced and not beat to death! wave


The end is near.....
Re: Worn out engine - WWYD? [Re: NITROUSN] #2805309
08/05/20 08:43 AM
08/05/20 08:43 AM
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Benton, IL.
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DaveRS23 Offline
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Originally Posted by NITROUSN
D] Roll a set of bearings in it along with a new oil pump and drive it.


iagree I have done this several times with good results every time. Squaring up the cam timing at the same time is also a good idea.


Master, again and still
Re: Worn out engine - WWYD? [Re: kevin69bman] #2805314
08/05/20 09:04 AM
08/05/20 09:04 AM
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Tulsa OK
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Pull it, new bearings, new timing chain, enjoy.


68 Barracuda Formula S 340
87 "Chrysler" Conquest
Re: Worn out engine - WWYD? [Re: not_a_charger] #2805330
08/05/20 09:39 AM
08/05/20 09:39 AM
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Holland MI Ottawa
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2boltmain Offline
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Crank kit. Old school farmers way.


Keep old mopars alive.
Re: Worn out engine - WWYD? [Re: not_a_charger] #2805363
08/05/20 11:40 AM
08/05/20 11:40 AM
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central il.
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second 70 Offline
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Since you already said you can get the oil pan off new bearings and a pump sounds like it would be a good option.

Re: Worn out engine - WWYD? [Re: second 70] #2805378
08/05/20 12:22 PM
08/05/20 12:22 PM
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Byron, NY
W.I.N. Racing Offline
top fuel
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If its not burning oil.. new bearings pump and chain right in the truck.


'01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60
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Re: Worn out engine - WWYD? [Re: W.I.N. Racing] #2805385
08/05/20 12:40 PM
08/05/20 12:40 PM
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ohio
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ruderunner Offline
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Not to pee in everyone's cheerios but,

Its unlikely that the rod and main bearings are going to fix it. These engines were known for iffy cam bearings and that in my experience is the most common source of low oil pressure. The lower end wear is a symptom not a cause.

Still, if it were mine id gamble on the bearings and high volume pump, and thicker oil. Then run it till the valvetrain starts to rattle.


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Re: Worn out engine - WWYD? [Re: ruderunner] #2805406
08/05/20 01:13 PM
08/05/20 01:13 PM
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Eagle, Idaho
Neil Offline
The Doctor is in.
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More work, but I'd be tempted to build a Clevor engine.

Re: Worn out engine - WWYD? [Re: Neil] #2805432
08/05/20 02:18 PM
08/05/20 02:18 PM
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my own world
theraif Offline
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twocents reman start fri. night drive it sunday

Re: Worn out engine - WWYD? [Re: theraif] #2805453
08/05/20 03:21 PM
08/05/20 03:21 PM
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Anderson, SC
resqguy Offline
top fuel
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I vote reman too. Wait for a sale on a long block with a warranty. Sounds like a good truck to keep.

Re: Worn out engine - WWYD? [Re: kevin69bman] #2805480
08/05/20 04:24 PM
08/05/20 04:24 PM
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Posts: 20,348
Eagle, Idaho
Neil Offline
The Doctor is in.
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I've seen remanufactured engine that had issues as well as being weak on power.

I know a guy who bough a remanufactured chevy 350 crate engine and it spun the crank bearing about a year later. When they took it apart it was a hodgepodge of used parts and poor machine work. If time isn't an issue just rebuild what you have.

Re: Worn out engine - WWYD? [Re: not_a_charger] #2805598
08/05/20 10:55 PM
08/05/20 10:55 PM
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Downtown Roebuck Ont
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Originally Posted by not_a_charger
Thanks everyone.

Oil pressure was checked with a mechanical gauge and confirmed low. Assumption was it was the oil pump, so the plan was to replace the pump when doing the rear main seal. Disassembly found that the bearings are worn. frown

It currently has 10W-30 in it, so making a change there might help me a little.

And Kevin, I'd love to drop a 460 in it, but my understanding is that it's not a direct bolt-in.



You should have just rolled in a set of bearings when you had the pan off it.

If it's a 400M, it should be pretty close to bolt in. A 460 was available in a 250 so if the mounts are different on a 400M, the correct ones should be readily available.

Kevin

Re: Worn out engine - WWYD? [Re: Twostick] #2805633
08/06/20 06:27 AM
08/06/20 06:27 AM
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Posts: 19,773
Puttin' on the foil in Charles...
not_a_charger Offline OP
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The pan is still off.


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Re: Worn out engine - WWYD? [Re: not_a_charger] #2805639
08/06/20 07:04 AM
08/06/20 07:04 AM
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in a cattle trailer down by th...
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Originally Posted by not_a_charger
The pan is still off.

No brainer then. Roll in new bearings, seals, oil pump and a timing set. Enjoy.


"Follow me the wise man said, but he walked behind"


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Re: Worn out engine - WWYD? [Re: NITROUSN] #2805677
08/06/20 09:55 AM
08/06/20 09:55 AM
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It's a dry heat
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Originally Posted by NITROUSN
D] Roll a set of bearings in it along with a new oil pump and drive it.



This ^

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