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Bleeding of fuel system
Bleeding of fuel system must be per-
formed when fuel filter has been
removed or the engine has been
stopped due to lack of fuel.
1. Turn the cap of fuel feed pump
primer anti–clockwise.
2. Keep pumping the primer until
meet strong resistance to pumping.
By holding the primer pushed
down, loosen the bleeder screw of
primary fuel filter, bleed out the
fuel with air bubbles, then retight-
en the bleeder screw quickly.
3. Repeat (2) until pure fuel without
air bubbles comes out.
4. Bleed secondary fuel and injection
pump by doing the sequence (2),
(3).
5. Bleed the air in injection pump, by
the bleeder screw illustrated in the
following figure.
6. After bleeding, push down the cap
of primer and turn clockwise to be
locked tightly.
(D1146 ENG)
(Except D1146 ENGINE)
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