5.5.6. Bleeding the fuel system
After the cleaning of the fuel filter or after the
engine stop by the lack of fuel, the bleeding
of the fuel system must be executed by all
means.
Bleed the system by manually operating the
priming pump with fuel filter outlet joint bolt
and injection pump bleeder screw loosened.
•
Press the feed pump cap repetitively until
the fuel without bubbles comes out from
the bleeding valves.
•
After the whole air is pulled out, close the
valve of the filter.
•
Confirm the resistance of fuel delivery by the repetition pressing of the feed pump cap,
Pressure and turn the feed pump cap simultaneously to close it.
5.5.7. Injection pump
•
Check the fuel injection pump housing for cracks or breaks, and replace if damaged.
•
Check and see if the lead seal for idling control and speed control levers have not been
removed.
•
No alterations must be made to the injection pump. If the lead seal is damaged the warranty
on the engine will become null and void.
•
We strongly recommended that any faults developing in the injection pump should be taken
care of by authorized specialist personnel.
5.6. Injection Nozzle Maintenance (by authorized specialist personnel)
The injectors are designed to spray the fuel
delivered by the injection pump directly into
the spherical combustion chamber in the
piston crown.
The injector consists of the nozzle and the
nozzle holder.
A copper seal fitted to the injector ensures
gas-tight seating and good heat dissipation.
The opening pressure of the nozzle is
adjusted by means of shims at the
compression spring.
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EA9O4005
Priming pump
EA0M3003
