Usage, repair and maintenance specification of CAC gasoline engine
——Nine main bearing bolts are hex head flange side bolts, and
one is stud. For horizontal engine, the stud is mounted in the left
threaded hole of the second main bearing cap (see from the front)
which is for installing the carrier of oil collector. For the vertical
engine, it should be mounted on the left threaded hole of the
forth main bearing cap (see from the front).
Fig. 69
Before installing the main bearing bolt, engine oil should
be applied on the joint surface of head end.
The main bearing bolt and stud should be screwed by hand
first and tightened to 90—100Nm.
——The max rotating torque of the crankshaft (with piston rod
assembly) is 16Nm.
【12】. The removal and installation of oil baffle assembly
Fig. 70
Removal：
——Take out the oil baffle assembly from the right of the back
end of the cylinder body.
Installation：
——Install the oil baffle assembly from the right of the back
end of the cylinder body (viewed from the front). The oil baffle
assembly should be tensioned. The spring should be lower than
the flange surface of cylinder block oil pan.
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