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Bearing Wear Question

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Post  1EFF100 February 9th 2014, 5:12 pm

Hey guys. I was pulling apart a 460 I'm going to turn into a 521 and I noticed what I thought was strange main bearing wear. Number 1 was showing copper on the upper shell but okay on the bottom. The rest of the mains showed no copper at all. What the heck would cause that?

Here's some pics.
Number 1.
Bearing Wear Question DSC02440_zps623d5c85
The rest.
Bearing Wear Question DSC02441_zpsf1f4d6a8
Bearing Wear Question DSC02442_zpsf7392a63
1EFF100
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Post  Frank Merkl February 9th 2014, 7:42 pm

30 years of tight fan belts and cold starts
Frank
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Post  1EFF100 February 9th 2014, 8:00 pm

Well shoot, I didn't even think of that but it makes perfect sense. Thanks Frank!  Smile 
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Post  LivermoreDave February 9th 2014, 8:19 pm

Frank Merkl wrote:30 years of tight fan belts and cold starts
Frank

IMO, excellent observation Frank!

Dave.

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Bearing Wear Question Empty Tight belts

Post  manofmerc February 12th 2014, 7:38 am

A couple of years ago I put new main bearings in my buddys 390 pickup .This was with the engine in the vehicle so I was doing the old "roll the bearings in" trick I couldnt get the top front bearing to come out .After a little pondering I loosened the belts and the front bearing came right out .And it looked pretty much like yours.doug

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