Main bearings
09-12-2020, (Subject: Main bearings ) 
Post: #1
Main bearings
I removed my new main bearings from packaging and measured them with calipers. I left small scratches where the calipers were place should I junk them or still use them . I did some research on service bulletin they indicated that they have several layers of metal.


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09-12-2020, (Subject: Main bearings ) 
Post: #2
RE: Main bearings
I think your good. We used to take a grey scotch brite pad and polish new bearings to help with break in
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 Thanks given by: Mrt800
09-12-2020, (Subject: Main bearings ) 
Post: #3
RE: Main bearings
(09-12-2020 )redbeard Wrote:  I think your good. We used to take a grey scotch brite pad and polish new bearings to help with break in
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09-12-2020, (Subject: Main bearings ) 
Post: #4
RE: Main bearings
Bearings don’t need break in. Only piston rings
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 Thanks given by: Mrt800
09-12-2020, (Subject: Main bearings ) 
Post: #5
RE: Main bearings
Tks red beard. I know now to use a ball tip Micrometer for next . I tku Rawze for your platform.
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09-12-2020, (Subject: Main bearings ) 
Post: #6
RE: Main bearings
(09-12-2020 )redbeard Wrote:  I think your good. We used to take a grey scotch brite pad and polish new bearings to help with break in


I am hoping your referring to some older type of engine of days gone past that was known for improper fit bearings or something.


On an ISX, the proper main/rod bearing clearance is 0.002" - 0.004" ... I would hope someone would not take a scotch-brite pad to one unless it was to achieve the right clearances, and had plastigauged everything before hand to ensure they needed to do such a drastic thing.


User's Signature: ->: What I post is just my own thoughts and Opinions! --- I AM Full Of S__T!.
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 Thanks given by: Mrt800
09-12-2020, (Subject: Main bearings ) 
Post: #7
RE: Main bearings
When we in framed my truck in "The Master's" driveway, we treated those bearings with kid gloves, and lotsa Slick Lube... Just saying.


User's Signature: 2008 ProStar, OEM 600hp CM-871, 18spd, 3:42, in framed in Rawze's driveway. Every day is a fresh new episode of, "The Twilight Zone"... Rod Serling lives rent free in my head. I can smell the Chesterfields.
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 Thanks given by: Mrt800
09-13-2020, (Subject: Main bearings ) 
Post: #8
RE: Main bearings
Bearing looks like its been bouncin around in a truck tool box for a week.
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 Thanks given by: Signature620




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