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GS ADDICT's Avatar
 
Join Date: Apr 2006
Location: British Columbia
Posts: 105
Improved Input Shaft for R1150 6 Speed Transmission

Greetings everyone, I would like to share a product with all my fellow riders that I know will benefit them. Follow the link to Adventure Riders
http://www.advrider.com/forums/showthread.php?t=301863 or go directly to this link http://www.sunshinecoast.ca/bmw/InputShaft.pdf

Best regards and safe riding
Reto

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Last edited by GS ADDICT; 01-14-2008 at 01:27 PM..
Old 01-14-2008, 01:23 PM
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Bill K
 
Join Date: Aug 2007
Posts: 24
yeah I'm not sure that it's not worth $900 (US or CD) for an experimental fix.

The wear pattern on my input shaft looked just like this one:

http://www.sunshinecoast.ca/bmw/InputShaft.pdf

It intuitively supports the theory that that the disk rocking on the shaft end cause the wear.

The mechanic I used for S shaft replacement was with BMW for ~15 years, now has his own shop. He said that BMW has tweaked with metal hardness and designs for the clutch disk. He said it was very likely the new clutch disk is different than the original design.

My question is: when is the disk in the position when it's riding on only partial splines? All the time? Only in neutral? Only in gear?

-Bill
Old 01-14-2008, 03:50 PM
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Join Date: Mar 2004
Location: Camanche, Iowa
Posts: 3,703
For $900 I'd expect titanium nitride or chromium nitride anti-wear coating on the splines. You can send out an OEM shaft and have it coated for 1/3 that cost.
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Old 01-14-2008, 05:24 PM
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Join Date: Apr 2006
Location: British Columbia
Posts: 105
Quote:
Originally Posted by Moybin View Post
For $900 I'd expect titanium nitride or chromium nitride anti-wear coating on the splines. You can send out an OEM shaft and have it coated for 1/3 that cost.
Maybe so but with only 3/4 engagement the disc hub still won't last.

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Old 01-14-2008, 05:58 PM
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