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CHECKING OIL CIRCULATION
Provision is made to observe the oil circulating, which is visible after removing the oil
filler cap on the right side of the crankcase.
ENGINE LUBRICATION SYSTEM
This is by true dry sump system.
The oil pump has only one moving part, i.e., the oil pump plunger, which rotates and
reciprocates. Rotation is created by the worm gear on the timing side flywheel axle.
Reciprocation is caused by engagement of the oil pump guide pin with the profited groove
in the oil pump plunger. The oil pump is designed so that the sump scavenging capacity
is greater than the delivery, thus keeping the crankcase sump free of oil during normal
running conditions
Whilst the oil reservoir is integral with the crankcase, oil is fed to the pump by gravity,
on the same principle as a machine fitted with a separate oil tank, but without the use of
external oil pipes.
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Illustration 1
Cut-away section of engine
The oil tank, or reservoir, is integral with the crankcase.
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