3. 7 Crankcase - Honda CB160 Shop Manual

3. 7 CRANKCASE
31
II.
Assembly
1. After cleaning all parts of the filter and oil filter
cover guide, the disassembly order is reversed for
assembly.
(Refer to Fig. 3. 76}
2. Proper tightening of the 1 6 mm lock nut and lock
washer securing the oil filter should be made.
3. Assembly of the oil filter cap should be performed
flatly.
C. Operation of oil separator
The oil separator is installed in the front section
of the lower crankcase, by the right and left cylinder
bores and just under the crankshaft. It reduces the
amount of oil splashed by rotation of th9 counter-
weight of the crankshaft, prevents oil penetration, and
controls the oil temperature rise.
(Refer to Fig. 3. 77}
3. 7 Crankcase
A. Description
The upper and lower crankcases are of lightweight
alloy and can be separated at the surface which
includes center lines of the crankshaft, transmission
shaft, and the kick starter spindle.
In addition. at the left front section of the CB 1 25
and 1 60 crankcase, the starting motor is supported.
In the upper surface of the upper crankcase, the
cylinder stud bolts are inserted. At the contact surface
with the lower tr~ke:ose, nine 8 mm stud bolts are
inserted. In the lower crankcase, 8 mm and 6 mm
studbolts (one each) are inserted.
{Refer to Fig.
3. 78)
The lower crankcase is equipped with the oil sepa-
tor, lower crankcase cover, and two drain plugs.
(Refer to Fig. 3. 79)
fig. 3. 76
Cleaning oil filter
Fig. 3. 77 Lower crankcase m which oil separator is
installed
fig. 3. 78 Upper and lower crankcase
Fig. 3. 79 Drain plugs