5
6
7
8
Removing and installing valves
88
Installing valves
Fig. 5
Apply oil to valve stern and insert valves into valve
guides.
Note:
Minor damage to the valve seat can be elimi-
nated by lapping using valve lapping paste.
New valves must always be lapped until an
even valve seat has been achieved. Machine
valve seat insert if necessary.
Turn cylinder head over and insert valve spring
washers. Screw off valve assembly lever.
Figs. 6 and 7
Place insert sleeve for valve shaft seals (special
tool, see page 129, item 19) on the respective
valve and push on seal.
Note:
Use new valve shaft seals only.
Fig. 8
Take off insert sleeve. Fit press-in sleeve and
press in seal.
3530
3752
3753
3754
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