Re: Worn out engine - WWYD?
[Re: NITROUSN]
#2805276
08/05/20 05:10 AM
08/05/20 05:10 AM
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Joined: Oct 2006
Posts: 5,610 Germany
fc7_plumcrazy
master
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master
Joined: Oct 2006
Posts: 5,610
Germany
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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. Carsten
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Re: Worn out engine - WWYD?
[Re: poorboy]
#2805282
08/05/20 05:24 AM
08/05/20 05:24 AM
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Joined: Jan 2003
Posts: 21,501 N.E. OHIO, USA
A12
Too Many Posts
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Too Many Posts
Joined: Jan 2003
Posts: 21,501
N.E. OHIO, USA
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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: 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 that it makes me feel good 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 MileR NICE OLD TRUCK THERE Mike I really like it ...........................even though it's a FORD.....
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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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Joined: Dec 2007
Posts: 19,874 Puttin' on the foil in Charles...
not_a_charger
OP
Mr. Big Shot Moparts Moderator
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OP
Mr. Big Shot Moparts Moderator
Joined: Dec 2007
Posts: 19,874
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. 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.
Earning every penny of that moderator paycheck.
DBAP
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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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Joined: Jun 2003
Posts: 3,318 Southern Maryland
klunick
master
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master
Joined: Jun 2003
Posts: 3,318
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.
67 Barracuda FB
69 Superbee
"Southern Maryland: If you want a good looking woman, you had better bring her with you"
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Re: Worn out engine - WWYD?
[Re: NITROUSN]
#2805309
08/05/20 08:43 AM
08/05/20 08:43 AM
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Joined: Jan 2003
Posts: 12,037 Benton, IL.
DaveRS23
Special needs idiot
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Special needs idiot
Joined: Jan 2003
Posts: 12,037
Benton, IL.
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D] Roll a set of bearings in it along with a new oil pump and drive it. 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
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Re: Worn out engine - WWYD?
[Re: kevin69bman]
#2805314
08/05/20 09:04 AM
08/05/20 09:04 AM
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Joined: Jan 2003
Posts: 8,021 Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,021
Tulsa OK
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Pull it, new bearings, new timing chain, enjoy.
68 Barracuda Formula S 340
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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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Joined: Dec 2006
Posts: 2,106 Byron, NY
W.I.N. Racing
top fuel
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top fuel
Joined: Dec 2006
Posts: 2,106
Byron, NY
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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 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd
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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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Joined: Dec 2014
Posts: 5,785 ohio
ruderunner
master
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master
Joined: Dec 2014
Posts: 5,785
ohio
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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.
Angry white pureblood male
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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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Joined: May 2003
Posts: 6,561 Downtown Roebuck Ont
Twostick
Still wishing...
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Still wishing...
Joined: May 2003
Posts: 6,561
Downtown Roebuck Ont
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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. 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
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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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Joined: Dec 2009
Posts: 20,633 in a cattle trailer down by th...
Guitar Jones
Paddle faster! I hear banjo music!
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Paddle faster! I hear banjo music!
Joined: Dec 2009
Posts: 20,633
in a cattle trailer down by th...
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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"
'92 D250 Club Cab CTD, 47RH conversion, pump tweaks, injectors, rear disc and hydroboost conversion. '74 W200 Crew Cab 360, NV4500, D44, D60 and NP205 divorced transfer case. Rear disc and hydroboost coming soon! 2019 1500 Long Horn Crew Cab 4WD, 5.7 Hemi.
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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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Joined: Jun 2003
Posts: 21,406 It's a dry heat
gtx6970
Too Many Posts
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Too Many Posts
Joined: Jun 2003
Posts: 21,406
It's a dry heat
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D] Roll a set of bearings in it along with a new oil pump and drive it. This ^
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