BMW Motorcycle (R1100RT, R1100RS, R850/1100GS, R850/1100R). Manual - part 13

11.52

Fitting auxiliary frame

•

Remove the rear wheel.

•

Remove rear suspension strut.

•

Install the rear wheel.

•

Remove upper retaining screw and lower pin in 
connecting struts (1) between engine and frame.

•

Attach auxiliary frame, BMW No. 46 5 630, at 
rear suspension strut pivot (2).

•

Hook the auxiliary frame to the front tank 
mount (3).

•

Center the auxiliary frame over the plane surface 
of the tank mount, insert threaded bushes (4) ful-
ly into the connecting struts/frame and 
tighten firmly.

e

 Caution:

Protect tank mount with adhesive tape to prevent 
scratching.

•

Unfasten rear frame screw connection (5) at front 
left/right.

•

Insert adapter (6) into the leading link/rear frame 
mount and secure it to the auxiliary frame.

•

Unfasten lower front suspension strut mount.

•

Press front of leading link down (arrow), or pull 
rear section downwards.

•

Unscrew and remove pin (7) securing the frame 
to the engine.

e

 

Caution:

Protect tank mount with adhesive tape to prevent 
scratching.

•

Secure front suspension strut at bottom.

•

Detach rear left/right of rear frame.

•

Detach left intake pipe at cylinder head and pull 
downwards.

•

Withdraw leading link shaft (8) to the left.

•

Raise frame assembly at the front.

4

3

1

8

5

6

7

2

46 5 630

RS111010

11.53

•

Attach frame support, BMW No. 46 5 620, with 
adapter, BMW No. 46 5 623, to the frame unit.

•

Remove gearbox/swinging arm/rear axle/rear 
wheel together.

Take off auxiliary frame.

•

Lower frame assembly at the front.

e

 Caution:

Ensure that all components are correctly located. 
Do not damage electrical wiring, leads or wire 
cables.

•

Detach left intake pipe at cylinder head and pull 
downwards.

•

Apply a light coating of grease to the leading link 
shaft, insert from the left and secure tightly.

•

Unfasten lower front suspension strut mount.

•

Press front of leading link downwards or pull rear 
section downwards.

•

Using mandrel, BMW No. 46 5 630, align the 
front frame bores with the engine bore from the 
left, insert the pin from the right and screw up 
tightly.

e

 Caution:

Do not scratch leading link - apply adhesive mask-
ing tape if necessary.

•

Secure front suspension strut at bottom.

•

Remove auxiliary frame.

46 5 623

46 5 620

RS111020

11.54

Dismantling engine

•

Attach engine mount, BMW No. 11 0 630, to 
engine block.

•

Transfer engine to assembly frame.

•

Drain engine oil.

•

Remove oil filter, using oil filter wrench, 
BMW No. 11 4 650.

11 0 630

RS110010

11 4 650

RS110950

11.55

Removing cylinder head cover

•

Unscrew and remove spark plugs with spark 
plug wrench, BMW No. 12 3 510.

•

Remove cylinder head cover.

e

 Caution:

Trap escaping oil.

12 3 510

RS110020

11.56

Locking the engine in the TDC posi-
tion

•

Remove front cover.

•

Turn the belt pulley to move the piston to TDC on 
the ignition stroke.

TDC on ignition stroke:
1. TDC mark is visible, and
2. the inlet and exhaust valves in the cylinder in 

question are closed.

•

Secure the clutch housing with locking device, 
BMW No. 11 5 640.

L

 Note:

The engine can be set to top dead center with the 
TDC pin,  BMW No. 11 2 650, which is inserted into 
the clutch housing and the engine block at TDC.

RS 11.003

TDC

11 5 640

RS110030

11 2 650

TDC

RS110461

11.57

Removing and installing chain ten-
sioner

e

 Caution:

Do not accidentally confuse the chain tensioner 
pistons. When installing, fit a new gasket.

Assembly specification for timing chain ten-
sioner:

Removal:

•

Remove timing chain tensioner, then remove 
cam-shaft sprocket from camshaft.

Installation:

•

First install camshaft sprocket, then timing chain 
tensioner.

e

 Caution:

Failure to observe this sequence can cause the 
chain tensioner piston to fall into the left side of the 
timing chain cavity.

X

 Tightening torque:

Chain tensioner ............................................ 32 Nm

RS110060

11.58

Removing valve gear holder

•

Remove camshaft sprocket cover.

•

Unscrew/press off camshaft sprocket.

L

 Note:

If the camshaft sprocket (1) is not removed after 
loosening, it must be held firmly and prevented from 
falling into the engine block (e.g. with a cable strap).

•

Remove valve gear holder.

•

Secure rockers with a rubber band (2).

L

 Note:

If no work is carried out on the valve gear holder, re-
move it together with the cylinder head.

1

2

M6 x 30

M6 x 30

M6 x 30

M6 x 60

RS110070

RS110051

11.59

Dismantling/reassembling valve gear 
holder

•

Remove bearing cap.

•

Insert a suitable drift into the bore (arrow) of the 
rocker shaft, and pull the shaft out of the mount 
by twisting it in both directions.

•

Remove pushrods.

e

 Caution:

Do not accidentally confuse rocker shafts and 
pushrods.

M8

 x

 4

0

M8

 x

 30

M8

 x

 4

0

RS110080