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Old 06-17-2008, 10:44 AM   #81
Lornce OP
Lost In Place
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Joined: Aug 2003
Location: Way Out There.
Oddometer: 18,256
Update of ongoing and belated R100GS/PD rebuild...

Here's a pic of the big end bearings that show signs of slight wear through to the lower layers of material (copper, i think?) on the thrust side of the bearing.

At 240k kms, I dion't think this level of wear is beyond what could be expected.

However, I am wondering if the uber-high compression ratio (approx 12:1) might contribute to accelerated bearing wear as it must certainly increase bearing pressures - especially at low revs when oil pressure is not particularly high.

The bike, in this engine configuration, will idle up just about anywhere it'll get traction. Hmmmn, maybe I should check the new shells every 20 or 30k kms just to see how they hold up?

Lornce screwed with this post 03-13-2011 at 02:46 PM
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