BMW R 1150 RT Repair Manual page 101

11 34 Installing valve and valve stem seal
L
Note:
The valve stem seal must be replaced whenever a
valve is removed.
•
Oil the stem before installing the valve.
•
Shrink a short length of tube (arrow) on to the end
of the valve stem.
•
Install the valve stem seal with a
5 mm (0.1969 in) dia. drift, BMW No. 11 5 602.
e
Attention:
Remove the shrink-fit tube.
•
Install lower spring retainer, valve spring and up-
per spring retainer.
•
Compress the valve springs with the valve spring
compressor, BMW No. 11 5 690.
L
Note:
Apply grease to valve collets (to facilitate installation)
and install.
e
Attention:
Make sure that valve collets are correctly seated in
the valve stem grooves.
•
Relieve tension on valve springs.
•
Check valves for leakage (blow-by).
11 5 690
11 5 602
RS110160
11.31