Motorcycle BMW R1150RT. Manual - part 22

11.23

11 31 120 

Removing and installing chain 

tensioner

e

 Attention:

Do not mix up the chain tensioner pistons. When in-
stalling, fit a new gasket.

Work instructions, timing-chain tensioner

e

 Attention:

Failure to observe this sequence can cause the 
chain tensioner piston on the left to drop into the 
timing-chain chamber.

Removing:

•

Remove timing chain tensioner, then remove 
camshaft sprocket from camshaft.

Installing:

•

First install camshaft sprocket, then timing chain 
tensioner.

X 

Tightening torque:

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

RS110060

11.24

11 33 

Removing and installing valve 

gear carrier

•

Remove camshaft sprocket cover.

L

 Note:

If the camshaft sprocket (1) is not removed after be-
ing released, it will be necessary to position and se-
cure it to prevent it from dropping into the engine (for 
instance, with cable ties).

•

Remove/pull off camshaft sprocket.

L

 

Note:

If no work is being carried out on the valve gear car-
rier, remove it together with the cylinder head.

•

Remove valve gear carrier.

•

Secure rocker arms with a rubber band (2).

•

Install valve gear carrier (

a

11.58).

S110110

M6 x 60

M6 x 30

M6 x 30

M6 x 30

2

1

RS110051

11.25

11 33 280 

Disassembling and assem-

bling valve gear carrier

•

Remove bearing cap.

•

Insert a suitable pin into the bore (arrow) of the 
rocker shaft, and turn the shaft back and forth to 
remove it from its bearing.

e

 Attention:

Do not mix up the rocker shafts and pushrods.

•

Remove pushrods.

RS110080

M8

 x

 40

M8

 x

 4

0

M8 x

 30

11.26

•

Remove camshaft bearing cap (1).

•

Remove camshaft and bearing (2).

e

 Attention:

Do not mix up the bucket-type tappets.

•

Remove bucket-type tappets.

•

Assembly is the reverse of the disassembly pro-
cedure.

e

 Attention:

Note direction of installation (3) for camshaft bearing 
cap. The recesses in the rocker arm shafts must be 
in alignment with the holes for the fasteners.

L

 Note:

Locate pushrods in ball cups of rockers and hold the 
rockers together with a rubber band to hold the 
pushrods in position.

X 

Tightening torque:

M 8 screw, rocker shaft bearing cap ............ 18 Nm
M 8 screw, camshaft bearing cap ................ 15 Nm

•

Adjust the holder for minimum end float.

End float of rockers:
min. ........................................ 0.05 mm (0.0020 in)
max. ....................................... 0.40 mm (0.0157 in)

RS110090

3

1

M8 x

 65

2

RS110100