tagz

Brand new motor. Cometic gaskets leaked coolant into the crank case. Car ran for 10 minutes tops at low RPM. Was not driven. i pulled the motor back out to redo the head gaskets and check out the bearings. I pulled the first main bearing cap and this is what it looks like. Tell me what you think about the discoloration, is this normal? i don't know if you can see it but there is a very small grove in the bearing as well. Can barely feel it. I will check the crank out tomorrow. Can probly be worked out with a little scotch bright, its minuet. I'm more worryed about the discoloration.

http://www.angelfire.com/biz4/tagz/maincap.html

MachinistOne

link doesn't work.

tagz

hm, it should. lemme try hosting it some where else, or can i shoot you an email?

Kevin Blown 95 TA

The link works for me. Is that a localized heat mark on the bearing? if so , that doesnt look good at all, but I've seen some funny colors on the bearing coating before but if you can feel that its no good and scotchbrite isnt the answer.

MachinistOne

now it does - was getting a 404 error.

Pull the bearing off and check for crud behind it.

Is that an "H" or "P" bearing?

tagz

I can not feel the discoloration. I can BARELY feel the little scratch

quickSS

That looks like a very normal H-series bearing. If there is a small dirt line that is sorta normal but not desirable of course. But that is a good looking bearing.

Did you put the bottom end together?

Karl Ellwein
Ellwein Engines

tagz

No I did not. I'm not too concerned with the small dirt line, might have happened when i wiped the oil off with a rag. My fingernail leaves a noticable mark.. i think it is just the coating.

When you say normal looking h-series bearing... Do you mean they come out of the package this way? 0 miles on the motor

quickSS

Yes, they come out of the package that way. Not all of them, just some of them. So in other words, that bearing looks brand new.

Karl

MachinistOne

I have never seen one with that much of a defined line between the color variation, and usually the "P" bearings are the light grey, and the "H" are the darker color with discolorations throughout. I have however seen that kind of look on a "P" bearing that had a piece of crud behind it - that is why I asked what bearing type.

quickSS

Yea they usually have that discoloration new as more of a line throughout but I have seen some to look exactly like that one bearing in the photo too.

Also the ACL H-series bearings will look like that sometimes.

Kevin Blown 95 TA

Then I agree with the other guys - its just the color of the coating.

And I dont wipe off bearings cause they scratch so easily - I usually jsut use brake cleen and some compressed air.