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TM10-4320-324-14
4-45. Fuel System Bleeding.
This task covers:
Bleeding
INITIAL SETUP:
Tools
Tool kit, general mechanics: automotive, item 32,
section III, appendix B
WARNING
Fuel is very flammable and can explode easily.
To avoid serious injury or death, keep fuel away
from open fire and keep fire extinguisher within
easy reach when working with fuel. Do not work
on fuel system when engine is hot. Fuel can be
ignited by hot engine. When working with fuel,
post signs that read NO SMOKING WITHIN 50
FEET of vehicle.
a. Bleed fuel lines as follows:
(1) Place a suitable container under fuel feed
pump.
(2) Loosen overflow valve (1).
(3)
Operate fuel pump lever (2) until fuel is free of
air bubbles and emerges at overflow valve (1).
NOTE
The fuel pump will work if injector pump camshaft is in such position that diaphragm of fuel pump is
not lifted. When operating priming lever, the lifting movement of diaphragm must occur in first
quarter of travel. If not, turn engine over by hand.
(3) Tighten overflow valve (1).
(4) Start engine and check for leaks. END OF TASK
END OF TASK
4-144
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