Weifang 495 - Overflow Tube Diagram

at certain position in the glass tube.
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Fig. 24 Overflow tu be
l·-F"uel pipe lock nut;2-High pressure fuel pipe;3-Plastic hose;4-Glass
tube.
c. Turn the flywheel slowly. At the same time observe the fuel
level in the glass tube. WheQ fuel level just starts to rise, stop
turning the flywheel immediately. The graduation mark .on the rim
of the flywheel ainled by the line marke on the inspecting window
of the flywheel housing should be of 16+~:.
d. The ftiel delivery advance can be adju~ted by me&i.J.S of loos-
ening the nuts of the three studs on the ~njection pump flange and
turning the pump both directions by hand. 'lie wing from the end of
the governor, if rotate the injection pump in clockwise direction,
the delivery timing will be advance ,while in the contrary ,it will.be
retarded, After tightening the nuts on the flange, the delivery ad-
vance angle should be checked again.
e~ If the delivery advance angle is still beyond the limit after
rotating the injection pump to its extreme position, th~ gear case
cover ·should be dismantled, the injection pump timing· gear and the
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