Injection Nozzle
EF & EC-700prose procedureCD engine (CD20 diesel) injection nozzle inspection and cleaning.
Inspection
Thoroughly clean all disassembled parts with fresh kerosene or solvent.
If nozzle needle is damaged or fused, replace nozzle assembly with a new one.
If end of nozzle needle is seized or excessively discolored, replace nozzle assembly.
Check nozzle body and distance piece for proper contact. If excessively worn or damaged, replace nozzle assembly or distance piece.
Check distance piece and nozzle holder for proper contact. If excessively worn or damaged, replace distance piece or nozzle holder.
Check nozzle spring for excessive wear or damage. If excessively worn or damaged, replace it with a new spring.
Cleaning
CAUTION
a. Do not touch the nozzle mating surface with your fingers.
b. To wash the nozzles, use a wooden stick and brass brush with clean diesel fuel.
Cleaning
- 1Remove any carbon from exterior of nozzle body (except wrapping angle portion) by using Tool.
SEF830 - 2Clean oil sump of nozzle body using Tool.
SEF831 - 3Clean nozzle seat by using Tool. This job should be performed with extra precautions, since efficiency of nozzle depends greatly on a good nozzle seat.
SEF832