42 Series 4180 Powerhead
: Press home the oil seal (1) with
press sleeve (2) 1115 893 4600
so that it is flush with the
crankcase.
: Remove the installing sleeve (2)
and press sleeve (1).
– Fit the starter cup on the
crankshaft.
– Tighten down hex. nut, b 3.4
– Remove the locking screw
4180 890 2700. Fit the spark plug
and tighten it down firmly, b 3.4
– Install the rewind starter,
b 5.2
– Fit the shroud, b 5.7
Flywheel side
– Remove the rewind starter,
b 5.2.
– Remove the shroud, b 5.7
– Remove complete clutch,
b 7.6.1
– Remove the flywheel,
b 7.7
: Apply puller (1) 5910 890 4400
with No. 3.1 jaws (2) and clamp
the arms.
: Pull out the oil seal.
Take care not to damage the
crankshaft stub.
Installing oil seal at flywheel
– Inspect crankshaft running face
for scores.
– Clean the sealing face in the
crankcase and lubricate sealing
lip of oil seal with grease,
b 12
: Slip installing sleeve
4112 893 2400 (1) over the end
of the crankshaft.
– Lubricate sealing lips of oil seal
with grease, b 12
: Apply a thin coating of sealant to
the outside diameter of the oil
seal, b 12
: Push on the oil seal as far as the
crankcase.
Note the installed position: Closed
side of the oil seal must face
flywheel.
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