|05-23-2007, 07:01 PM||#1|
Scotty, I need more power
Joined: Jan 2004
crankshaft bearing size color markings - does green turn brown and yellow turn peach?
Dang it, but BMW has done it again. I have a 2003 r1150 crank with bearing ID paint that is not the specified green/yellow or white. I figure the oil and heat have changed them into what they are now. Deep rusty brownish black paint dabs I am guessing are aged green and the peachy rusty color is the mutation of yellow.
Measurement alternative - funny : the colors are used to ID the final OD of the journals and commpensate for variances in machining of less than .001 yet the measurments use by each color coding overlap eachother.
Then, add in the manual labor component - each paint dot is in a different place on the relative crank counterweight, and might be a 1/4" well defined dot of paint, or it maybe just a faint 1/8" smear of paint that is so faint as to be almost transparent. I've checked 3 cranks, same deal...
Fornt and rear mains match? No way - each gets its own dab of color as each journal gets the dimentional audit.
I LOVE the idea of this version of factory blueprinting - But the use of paint as a marking system that doesn't retain its pigment - ARGHH!
4 dealerships called - Service techs don't know how the paint mutates with age n oil, so they measure or as two of them told me, they figure yellow for everything unless plastiguage confirms otherwise. Bearings are major bucks on this motor, so buying 3 sets of each for both journals will total out near 350$$$ and restocking charges DO apply for those returned unused.
Rant is over - Q- Is my hunch on the color associations correct?
2up on our 1150GS beats RVing anyday.
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