Rear wheel drive and suspension motorcycle BMW R1150GS (1999-2004)

Rear wheel drive specifications
Technical Data R1150GS Rear wheel drive Gear tooth pattern Klingelnberg-Palloid spiral bevel Gear ratio 2.82 : 1 Number of teeth 31 : 11 Backlash, mm (in) 0.07 ... 0.16 (0.0027 ... 0.0063) Taper roller bearing preload, mm (in) 0.05 ... 0.1 (0.0020...

Removing rear wheel drive
If necessary, drain the oil from the rear wheel drive. Remove rear wheel cover. Remove the brake caliper and secure it to the rear frame with a cable strap. [ABS] Remove sensor (1). Remove rear wheel. Loosen reaction link (2) at the rear wheel...

Removing and installing taper roller bearing in rear wheel drive
Remove needle roller bearing with counter-support 22/1, BMW No. 008572, and internal puller 21/4, BMW No. 008573, with ring support. Heat neck of housing to 120°C (248°F). Press in needle roller bearing with inner race with driver, BMW No. 363700.

Removing input bevel pinion
Press out splined section of shaft. If necessary, remove/install circlip. Bolt the rear wheel drive to the retaining fixture, BMW No. 33 1 510/511. Bolt the locking arm (1) to the retaining fixture. Tighten grub screws until they are seated....

Disassembling input bevel pinion
Remove outer bearing race (1). Clamp input bevel pinion (2) into vise with protective jaws (splines facing upwards). Using puller, BMW No. 00 7 500, pull off both bearings at the same time. Remove thrust ring (3). Remove ball thrust bearing (4),...

Assembling input bevel pinion
Clean the threads of the input bevel pinion. Heat the inner race (1) to 100°C (212°F) and push onto input bevel pinion (2) as far as the stop. Push the outer race (3) together with the roller cage (4) on to the inner race. Heat ball thrust bearing...

Installing input bevel pinion
Clean threads in the housing. Clamp holder, BMW No. 33 1 510, in the vise in such a way that the input neck of the housing is pointing vertically upward. Heat the neck of the housing to max. 120°C (248°F). Note: Chill input bevel pinion prior to...

Removing and disassembling crown wheel
Remove housing cover (1) with crown wheel (2) and bearing (3). Heat housing cover to 100°C (212°F) and pull it off. Force shaft seal (4) out of housing cover with drift. Clamp crown wheel in vise with protective jaws. Insert thrust block (arrow),...

Assembling and installing crown wheel
Heat the housing to 80°C (176°F). Insert the outer race in the bearing seat with drift, BMW No. 234670, and handle, BMW No. 005500. Check that outer race is correctly seated by tapping gently. Note: If new parts are installed (e.g. taper roller...

Shimming input bevel pinion and crown wheel
It is important to shim the input bevel pinion and the crown wheel if the gear set or housing has been replaced. Note: The two components of the gear set (input bevel gear and crown wheel) must have matching numbers (1). Measure dimension K at the...

Checking tooth contact pattern
The tooth contact pattern must be checked if the gear set, housing or input bevel pinion bearing have been replaced. Note: Before checking the contact pattern, make sure that tooth backlash (provisional, if necessary) is correct. Note: The contact...

Checking and adjusting backlash
Secure measuring device, BMW No. 33 2 600, with dial gauge to crown wheel and secure to housing with the knurled screw. Secure measuring arm, BMW No. 33 2 603, centrally to crown wheel. Using the balls of your hands, press the crown wheel into the...

Shimming housing cover
In order to obtain the correct taper roller bearing preload, the housing cover must be correctly shimmed. Using depth gauge, BMW No. 00 2 550, measure distance «a». Place measuring ring, BMW No. 33 2 601, in position and secure it. Measure from the...

Installing housing cover
Lightly oil the lip and outer edge of the sealing ring. Using drift, BMW No. 33 1 860, and handle, BMW No. 00 5 500, drive in the sealing ring. Heat housing cover to 80°C (176°F) and install. Tighten securing screws in diagonally opposite sequence....

Installing rear wheel drive
Note: Do not lay oil-filled rear-wheel drive on its side prior to installation, as this will cause oil to escape when the motorcycle is on the road (suction effect). Coat splines of sliding element (arrow) with Staburags NBU 30 PTM . Install the...

Removing and installing spring strut
Note: To remove the spring strut, support the rear axle. Remove the seat. Remove height adjuster from seat on right. Remove rear wheel. Remove hydraulic spring adjuster. Remove spring strut. Installation is the reverse of the removal procedure....

Removing rear swinging arm
Remove rear wheel drive unit. Remove rear spring strut. Swinging-arm bearing studs are secured with Loctite: heat to max. 120°C (248°F) to release. Loosen floating bearing stud bolt. Loosen fixed bearing stud bolt. Remove floating bearing/fixed...

Removing and installing drive shaft
Removing Press off drive shaft. Caution! Avoid scratching painted parts; use an underlay if necessary. Checking universal joint for wear Measure axial and radial play. Installing Coat the splines on the output shaft with Staburags NBU 30 PTM. Fit...

Installing rear swinging arm
Slide swinging arm over drive shaft as far as possible until rubber gaiter connects on housing neck. Install fixed-bearing stud bolt (1) with Loctite. Install floating-bearing stud bolt (2) with Loctite. Tighten fixed bearing stud bolt. Tighten...