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P 12/ 20
Repair
[3] DISASSEMBLY/ASSEMBLY
[3]-4. Bearing box section, Crank housing section
ASSEMBLING
Lip portion
of Oil seal 20
Facing the lip portion to the side of box for Ball bearing
6304LLU (large Bearing), assemble Oil seal 20 by
pressing down until they stop.
Side of box for Ball bearing
6304LLU (large bearing)
Assemble Ball bearing 6304LLU
to Crank shaft as illustrated below.
Oil seal 20
(1) Assemble Crank shaft with Ball bearing 6304LLU to Crank housing complete as illustrated in Figs. 27 and 28.
Crank shaft
Crank shaft
Ball bearing
6304LLU
1R217
1R217
Setting Crank housing complete on 1R217,
assemble the Crank shaft with arbor press as
illustrated below. And then turn Crank housing
complete.
Put it onto 1R165 while aligning the assembled
Crank shaft to the 1R165.
Assemble Ball bearing 6203LLB. And then, assemble
Helical gear 52 as illustrated below.
Crank housing
complete
1R165
Crank shaft
Helical gear 52
Helical Gear 52 has to be assembled so that Crank shaft protrudes
approx. by 3 - 4 mm from the Helical gear 52.
The protruding portion of Crank shaft is accepted by the boss of
Gear housing.
Crank shaft
1R031
Helical
gear 52
Ball bearing
6203LLB
Crank shaft
3 - 4 mm
1R031
Note in Assembly
1R031
Gear
housing
Boss
Fig. 27
Fig. 28