The New And Improved Unofficial R65 Forum V2
Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: georgesgiralt on May 06, 2016, 03:46:28 PM
-
Hello Lads,
I'm searching for wisdom here.
Last time I had a flat, I was unable to remove the rear wheel with the on board tooling 22 mm wrench. I had to devise a big hammer with a stone. Not fun.
Back home, I discovered that the two top hats had split due to over tightening. Not good.
Since I've decided to do my tire work (I was on and off on this subject but now it is very difficult for me to find a place with a decent choice of tires for our bikes so I've to order online... ) I decided to use the proper BMW torque figure for the wheels and hope I'll be able to remove the wheel with the 22 short wrench next time I have a flat.
But, the torque wrench I use for this range of torque is a 3/8" drive Sykes and Pickavant of British origin. And using a 22mm socket is impossible due to the lack of clearance between the nut and the Keyhan right silencer. So I ground the socket very short but still no joy. If I continue to grind, there will be nothing left of the socket.
Question : How do you proceed to torque this nut without removing the right silencer ?
-
I use a 22 mm ' crow's foot ' wrench on a torque wrench, just subtract a bit from the torque value to compensate for the small additional length .
http://www.northerntool.com/shop/tools/product_200012174_200012174?cm_mmc=Bing-pla&utm_source=Bing_PLA&utm_medium=Hand%20Tools%20%3E%20Wrenches&utm_campaign=Grip&utm_content=156552
-
My silencer has a cut out underneath so I have no problem getting access with a standard socket and short extension bar.
How are the bearings after all that torque ? I would never let a motorcycle mechanic or tyre shop tighten the axle nut without slackening off and re-torquing properly. They are mostly unaware of the taper roller bearings and too used to chain drive so they lean on it to 100 ftlbs.
-
Barry, I inspected the bearings because my fear was that the outer cage has split.
I was fortunate enough that the top hat has served as a fuse !
The underneath cut is on the left side only of my old Keyhans but if I had one on the right side, it will serve nothing because I'm looking for play between the frame and the exhaust muffler.
I retain Bob's idea of a crow foot.