entropy
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posted December 19, 2007 12:05 AM
 Edited By: entropy on 19 Dec 2007 00:07
rod bearing pic for Christians
notice the cross, just in time for Christmas!
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TRNorBRN6001
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posted December 19, 2007 06:48 AM
Have you been letting them Barbies play with them bearings before you installed them?
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Texas12R
Zone Head
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posted December 19, 2007 07:14 AM
Just out of curiosity...concerning the bearings , how many layers are there?
I wanted to know because some builders ,from days gone by, would use scotchbrite
pads and remove the first layer, because it is very soft ,and has a tendency to smear.
Im probably Wrong but it looks like the outer portions have a build-up ....or is that area
lower from material loss.
I wonder what you would see if you colored the bearing with a marks-a-lot and gently
rubbed them on the corresponding journal toshow high spot, low spot.
Karl probably has Dyechem, Im poor and use the brokeman marks-a-lot method 
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aliveagain
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posted December 19, 2007 09:43 AM
Looks like they took a beating from the magnatized crank.   Why all the scratches?
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TRNorBRN6001
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posted December 19, 2007 11:45 AM
They seem as if they are coated from the factory, but I could be wrong. If so then what are they coated with if anyone knows?
Scratches?............................................................Garage Barbies were upset!
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zrxdean
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posted December 19, 2007 04:29 PM
I used to GENTLY scotchbrite bearings that came out of good running motors, as long as they looked OK.
Those scratches look like bore gauge marks, I think Karl has sworn off plastigauge.
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ninja12
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posted December 19, 2007 06:00 PM
What am I seeing? Which marks are deeper, the gray or the shiny?
maybe the oil pressure is wearing a groove on the bearings soft coating.
Will the scratches wipe out with a scotchbrite?
Do you feel any of that would have caused problems in the near furture?
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entropy
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posted December 20, 2007 02:10 AM
good idea on the scotchbrite/marksalot to see what the look like after a tad of polishing.
i'll try it tonight,
yep, boregauge scratches. One of these days i'll ust measure em like TimC, but for now boregauge
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TRNorBRN6001
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posted December 20, 2007 01:37 PM
How did the mains look?
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entropy
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posted December 20, 2007 02:19 PM
much better than my rods
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woppi
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posted December 21, 2007 06:42 AM
@entropy
did you found them in your backyard ???
they look a little sick ??
i think you engine has toooooo much compression ???
woppi
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entropy
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posted December 21, 2007 10:37 AM
quote:
i think you engine has toooooo much compression ???
woppi
Woppi,
you are probably right, but "damn the torpedoes full speed ahead!"
this last week i had Andy take another .003" off the head.
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TRNorBRN6001
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posted December 21, 2007 11:29 AM
.003 off the head Nice!!!!! That and slipping one of them razor bases out should
get things pumping real nice again!
What CR are you looking to go with now?
I'd also think the rod bearings were just getting hammered from the way the HP was generated/delivered, higher compression (I used generated/delivered since Mr. Meyer did not like my generic high HP term in the Oil section). I think this may be part of normal wear for your type of engine. What do the powers that be have to say on that topic?
I would also think if it were more of a magnetic problem then the mains would probably look worse. Still a good idea to cover that basis just in case.
Don't know what the Heavy Hitters around have to say, These motors may like a little heavier hand on the clearances, but maybe where possible tighten the mains up a little so they don't bleed off as quick and keep the pressure up. Don't Forget though, I am an Idiot compared to most.
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entropy
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posted December 21, 2007 02:25 PM
gary,
you are on the money and i'd love to go tighter on mains but i am running blues, can't go tighter 
we'll see what the CR is tomorrow.
What's a "razor base"???
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Y2KZX12R
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posted December 21, 2007 04:50 PM
I looked at the name of this thread and thought you gor rod bearings for xmas.
LOL That wouldnt be a bad thing. Better than coal.
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TRNorBRN6001
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posted December 21, 2007 07:26 PM
"Razor" Base Gasket: one of them copper ones that look like you could
use it to shave with in a pinch.
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entropy
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posted December 21, 2007 07:32 PM
quote:
"Razor" Base Gasket: one of them copper ones that look like you could
use it to shave with in a pinch.
good name!
I am running one now
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TRNorBRN6001
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posted December 22, 2007 03:38 PM
How Goes the Build??
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entropy
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posted December 22, 2007 03:50 PM
quote:
How Goes the Build??
its going together good. i learn something new every time ; will cc the combustion chamber tonight or tomorrow morning.
things all fine in Austin?
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TRNorBRN6001
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posted December 22, 2007 07:35 PM
yep, little windy here.
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kcadby
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posted December 23, 2007 12:26 PM
Edited By: kcadby on 23 Dec 2007 12:28
I've seen that multiple times and to be honest... I don't sweat-it as long as the Journals look good...(I DO replace bearings that look like that though)...
I believe that coating the bearings will help 
We are going to start a coating service at work...I let you know how it goes...
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entropy
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posted December 23, 2007 02:12 PM
KC,
good to see you posting again!
journals look fine.
My bike is finally making mojo hp so i don't mind replacing bearings
hmmmmm coating....
i've had some pistons treated/coated by WPC, maybe Izumi will have a suggestion
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TRNorBRN6001
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posted December 24, 2007 08:11 AM
Kcadby, just curious how thick the dry film lube coat thing would be?
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kcadby
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posted December 24, 2007 12:49 PM
couple of tenths... about 1-bearing size...
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KZScott
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posted December 24, 2007 02:37 PM
karl, you did want to go tighter (and tigher usually feels best:P)
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