Royal Enfield 350 BULLET 1989, Руководство по техническому обслуживанию мастерской

Страница: 39 / 114

WORKSHOP MANUAL BULLET
Page 39
OIL PUMP DIAGRAMS
Position 1: The plunger A is drawn out of the
feed pump disc C, by the peg B in the spindle D,
due to its rotation.
The suction port T in the pump disc aligns with
the suction port Y in the timing cover and oil
from the tank is drawn into the pump disc as the
plunger is drawn out.
Simultaneously the through hole W in the disc
registers with the delivery port X in the timing
cover.
The outward movement of the plunger forces
the accumulated oil in the annular space in the
timing cover to be delivered to the big end
bearings through the oil filter element.
Position 2: As the pump spindle rotates further
the plunger A is pushed into the pump disc C.
The delivery port R in the pump disc registers
with the delivery port X in the timing cover.
The oil in the pump disc is forced out through
these ports, by the plunger for supply to the oil
filter element and to the big ends.
Simultaneously the through hole Z, in the pump
disc registers with the suction port Y in the
timing cover and draws oil from the tank, into
the annular space in the timing cover, due to
inward movement of the plunger into the disc.
FEED PUMP
PORTS IN FEED PUMP DISC
T - Suction port
R - Delivery port
W, Z - Through holes
FEED PUMP PORTS IN THE
TIMING COVER
Y - Suction from Oil tank
X -Delivery to big end.
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