5.5.4. 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 com-
pression spring.
•
Install a nozzle to a nozzle tester.
•
Check injection pressure, and adjust the nozzle using the adjusting shim if the pressure does
not meet the specified limit.
•
Check nozzle spray patterns and replace if damaged.
- 109 -
MAINTENANCE AND CARE
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