Picture Request: Abnormal Main Bearing wear

[YouNeverSawMeHere]

Before I plastigauge at midnight...

Anyone have any real good pictures of abnormal vs normal wear patterns for main crank bearings?

I have a bright stripe down the middle(lube hole?) but thats about the worst.

[Akromix]

Don't use plastigauge. Mic the shit.

[Turbohwagon]

Before I plastigauge at midnight...

Anyone have any real good pictures of abnormal vs normal wear patterns for main crank bearings?

I have a bright stripe down the middle(lube hole?) but thats about the worst.

Color of stripe? Copper colored?

[GarrettGTX]

Don't use plastigauge. Mic the shit.

[YouNeverSawMeHere]

Color of stripe? Copper colored?

dull silver | bright silver | dull silver

Don't use plastigauge. Mic the shit.

i would rather not pull the flywheel and timing gear.

[Turbohwagon]

What engine? high volume pump?

[Akromix]

post pics

[YouNeverSawMeHere]

What engine? high volume pump?

4.0L jeep. regular pump. 111K miles.

[Turbohwagon]

I'm sure someone will say i'm a fucking moron, but i don't worry about it too much unless there is flaking, uneven/tappered wear copper showing, or grooves. One slightly polished ring thats lined up with the oiling hole doesn't sound too bad for 111k.

[YouNeverSawMeHere]

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[YouNeverSawMeHere]

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It's been more than a decade since I've looked at main bearings, so correct me if I am wrong, but i bought this motor without a warranty for $800 in fargo. The oil was a deep brown to black and i do know that there is even skirt wear on the cylinder walls so piston slap shouldn't be an issue and the only movement that i can get out of the rods is lateral and that is for sure less than .003 in.

the rods are also match mark engravings with a Letter/# code so it may have been rebuilt at one time if that wasn't factory.. (they all match up)

[Turbohwagon]

Looks ok to me.

[YouNeverSawMeHere]

Looks ok to me.

Thanks! I just needed a good second opinion.

[Akromix]

Yeah that looks like normal wear to me.

[The Follower]

normal wear.