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#4502473 - 08/30/17 04:01 PM Worn main bearings from sitting
Building3 Offline


Registered: 04/30/17
Posts: 75
Loc: Michigan
I just had my engine pulled because of some harsh noises I had been hearing. The engine builder said that the main bearings were worn and it looked like they were worn because of too many dry start conditions. This is an extra car not used too much. It is started and driven infrequently. He said everything else was perfect in the engine so there was no sense in a total rebuild, just replace the main bearings. However he said unless I used it more often, the same thing would happen. So for a car that sits a long period of time, perhaps several months at a time, any advice as to oil, especially would a 0w or 5w be better than a 15w or 20w? or the opposite? I don't have to worry about cold weather. The car will never start in below 40 degree temperatures. synthetic or conventional?

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#4502476 - 08/30/17 04:06 PM Re: Worn main bearings from sitting [Re: Building3]
CT8 Offline


Registered: 10/09/14
Posts: 10547
Loc: Idaho
Eventually the crankshaft settles on to the main caps. The lower crank bearings are the highest wear parts. same with the con rod bearings.
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Artificial intelligence is no match for natural stupidity, we shall prevail

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#4502494 - 08/30/17 04:24 PM Re: Worn main bearings from sitting [Re: CT8]
Building3 Offline


Registered: 04/30/17
Posts: 75
Loc: Michigan
Yes, those are the parts they will be replacing. Now I need to prevent it from happening again. Is there an oil on the market that will help in my situation?

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#4502499 - 08/30/17 04:28 PM Re: Worn main bearings from sitting [Re: Building3]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
What you can do is hook a garden sprayer up to the oil pressure port and get the engine primed with oil before starting it. That will prevent the equivalent of several thousand miles of engine wear.


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#4502529 - 08/30/17 04:47 PM Re: Worn main bearings from sitting [Re: Building3]
03cvpi Offline


Registered: 03/04/07
Posts: 198
Loc: Minneapolis
Do what boTh ford and chevy reccomend for car nearly in storage. Start the car once every two weeks, bring to full operating temp and move the car a lttle to prevent flat spots and dry rot on tires. Works for the two I have in the same situation.

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#4502545 - 08/30/17 05:08 PM Re: Worn main bearings from sitting [Re: Building3]
aquariuscsm Offline


Registered: 12/30/06
Posts: 17929
Loc: South Texas,USA
What kind of car is this?
_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Pennzoil Platinum 10W30
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#4502546 - 08/30/17 05:11 PM Re: Worn main bearings from sitting [Re: aquariuscsm]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
^ ^ ^ You're supposed to already know that. Use the force Luke. grin2

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#4502551 - 08/30/17 05:18 PM Re: Worn main bearings from sitting [Re: Building3]
aquariuscsm Offline


Registered: 12/30/06
Posts: 17929
Loc: South Texas,USA
Even better than the force! laugh

_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Pennzoil Platinum 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4502552 - 08/30/17 05:18 PM Re: Worn main bearings from sitting [Re: aquariuscsm]
Building3 Offline


Registered: 04/30/17
Posts: 75
Loc: Michigan
The car is a 1986 Dodge Omni GLH 2.2L 4 cylinder with 5 speed manual

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#4502555 - 08/30/17 05:20 PM Re: Worn main bearings from sitting [Re: Building3]
aquariuscsm Offline


Registered: 12/30/06
Posts: 17929
Loc: South Texas,USA
I've never heard of the worn bearings caused by lack of driving thing.
_________________________
1996 Nissan 300ZX 5-speed,Arctic Pearl(#175 of 300)
Pennzoil Platinum 10W30
2012 Honda Accord Coupe EX-L 2.4,auto,San Marino Red
Pennzoil Platinum 0W20



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#4502562 - 08/30/17 05:30 PM Re: Worn main bearings from sitting [Re: Building3]
demarpaint Offline


Registered: 07/03/05
Posts: 29389
Loc: NY
News to me. How long does the car sit before it's used.
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#4502571 - 08/30/17 05:36 PM Re: Worn main bearings from sitting [Re: Building3]
Chris142 Online   content


Registered: 06/05/03
Posts: 16516
Loc: Deplorable in apple valley, ca
Originally Posted By: Building3
The car is a 1986 Dodge Omni GLH 2.2L 4 cylinder with 5 speed manual
those were just junk anyway. my mom had an 87 that needed bearings @ 42k. I suspect lugging contributed to it since yours is a stickshift.
_________________________
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Can am maveric edge 5w40
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#4502582 - 08/30/17 05:52 PM Re: Worn main bearings from sitting [Re: Building3]
mbacfp Offline


Registered: 09/02/15
Posts: 778
Loc: California
I concur with 03cvpi, Ford recommends running every 15 days. I have a motorhome and have been following that since day 1....same with my towed car...drive it once a week to work to keep everything good.
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2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Hellcat Charger
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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#4502595 - 08/30/17 06:16 PM Re: Worn main bearings from sitting [Re: Building3]
rrounds Offline


Registered: 07/05/07
Posts: 938
Loc: SACRAMENTO, CA
Don't tell that to my motorhome or my Ford pickup. I'm lucky to gey my motorhome out of storage 6 to 8 times a year and my pickup can sit for even longer, so far alls good.

ROD
_________________________
'06 S2000
'00 SSEi sold at 252k miles
'08 Ford F53 V10
'13 Jeep Sahara 2 door

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#4502602 - 08/30/17 06:29 PM Re: Worn main bearings from sitting [Re: Building3]
mbacfp Offline


Registered: 09/02/15
Posts: 778
Loc: California
Out of curiosity, is there something on the OPs engine that leaves it susteptable to engine damage under those starting conditions. If so, why? Design flaw?
_________________________
2014 F-550 PSD..........M1 Delvac ESP 5w-40 + OEM
2018 Dodge Hellcat Charger
2012 Toyota Sienna LTD 3.5L V6
2003 Dodge Durango R/T 4x4 5.9L V8

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