Clutch Reassembly; Crankcase; Breather; R & L Crankcase View - Honda C50 Shop Manual

30
3.
figure 3- 70. Bend up tab of lock wash er
ENGINE
(7)
Clutch spring S65 [
J
ore for S50
Standard Value Serviceable Limit
Free length
19.2 10.756 in.) Replace of under
[ 18.9]
10.744 in.) 18.2 10.717 in.)
7.5±0.5 kg / 12.8 mm
Spring
116.5±1.11b/ 0.504in .) Replace if under
13.2±0.8 kg / 12.8 mm 6.5 kg/12.8 mm
force
129.0± 1.751b/ I 14.3 lb/ 504 in.)
10.504 in.)
(8)
Clutch spring ((50, C50M, C65, C65Ml
Standard Value Serviceable limit
Free length 19.6 10.772 in.)
Replace if under
18.2 10.720 in)
5.85 kg±0.3 kg /
Replace if under
Spring 13.5 mm
5.0 kg / 13.5
force 112.8 ±0.661b/
111.0 lb/ 0.532 in.)
0.532 in.)
c. Reassembly
( 1) Reassemble the c lutch in the reverse pr_ocedure
of disassembly.
(Note)
The lock washer must be locked by bending the
tab after tightening the nut; if th!'l nut does not
align with th e tab, tighten the nut further t o permit
locki ng. (Fig.
3-70)
2 . CRANKCASE
R. era kco se The cron case, which is an integral port of the
Figure 3-7 1. R & L crankcase
·ro smission, is on a luminum alloy die costi ng composed .
o'
righ' and left halves. A breather comportment
a d a breather passage is incorporated in the upper
se ion of both crankcase halves to dissipate the
pressure built up in the crankcase. (Fig.
3-71)
3. BREATH ER
The interior of the crankcase is continually under
varying pressure, built up by the reciprocating piston,
in addit ion, the crankcase is fill ed with gases from
the blow-by of the pist on and the gases produced
by the heat of th e crankcase. For this reason, the
decomposition of the oil is hastened . In addition,
to gether with the rise in the crankcase internal pres-
sure, the possibil ity of oi l leaks at the case porting
area is increased.
The breather is designed and incorporated in the
case to exhaust the gases to the outside and also to
maintain a constant pressure within the crankcase .