43Series 4180 Powerhead
: Press home the oil seal (1) with
press sleeve (2) 4112 893 2401
so that it is flush with the
crankcase.
: Remove the installing sleeve.
– Install the flywheel, b 7.7
– Install the clutch, b 7.6.2
– Remove the locking screw
4180 890 2700.
– Fit the spark plug and tighten it
down firmly, b 3.4
– Fit the shroud, b 5.7
– Install the rewind starter,
b 5.2
– Remove the tank, b 6.6.3
– Remove the muffler, b 7.5
– Remove the flywheel, b 7.7
: Take out the screws (arrows).
: Lift away the lower half of the
crankcase.
Do not take the crankshaft out of the
bearings because this will alter cam
gear timing, b 7.4.
Reassemble in the reverse
sequence.
: Clean the sealing face (1) of the
upper half of the crankcase and
the oil seals.
– Clean the sealing face of the
lower half of the crankcase.
– Check oil seals for leaks, damage
and cracks.
7.8.2 Crankcase, Lower Half
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