Mon, 4 May 1998 08:45:28 +0200
- Message No. 2787
From: Pagendarm@dlr.de (H.G.Pagendarm)
Subject: fracture due to vibration
Guys!
Yesterday I finally made up my mind to change oil in my RD04. I should
have done it earlier, but that's another story.
I had FIVE STARS crash bars mounted. In order to remove the engine
protector I had to remove the crash bars as well. They are fixed by
the two bolts which also hold the engine protector at the front part of
the frame. These bolts go into nuts firmly attached to the frame.
I discovered one of these nuts fallen of the frame due to vibration
fracture and the second almost off.
I'd like to get you opinion on:
1. The best method for repair? Is there a risk to weaken the frame due to
the high temperature when I try to attach new nuts to the frame?
2. Has anybody encountered similar fracture.
3. How to avoid the problem in the future.
I guess the problem is resulting from the crash bars. I rode the AT with
crashbars in place for less then 10 000 miles. When I first mounted the
crash bars I didn't notice any fractures. The AT had 10 000 miles on the
clock those days.
Interesting: I threw the bike once on her left side. So the left crash bar
was slightly kinked. However, it was the right crash bar which had more
severe vibrational damage.
Hans-Georg Pagendarm, Göttingen, Germany

dipper@normans.isd.uni-stuttgart.de