Mitsubishi Heavy Industries L2 Service Manual page 94

FUEL SYSTEM
Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
2. Remove the injection nozzle assembly from the
cylinder head.
CAUTION
a. Attach an identification-number tag to the
removed injection nozzle.
b. Plug the openings, to prevent entering of dust,
water and other foreign particles into the pipes
and combustion chamber.
c. Do not mix the parts of any nozzle assy with
others, but keep the parts of each nozzle
assembly as a unique combination.
22.3 Disassembly
If the removed nozzle assembly is assumed defective,
disassemble the assembly and repair or replace the
defective parts.
1. Grip the nozzle holder body in a vise. Loosen the
retaining nut. Never vise the retaining nut to
prevent deformation.
2. Remove the shim washer, pressure spring,
distance piece and nozzle assembly.
CAUTION
Scrape off carbon deposit with a wooden piece. Keep
the removed parts immersed in washing oil
(kerosene). Pay special attention not to scratch the
needle valve in the nozzle assembly.
ENGLISH
INJECTION NOZZLE
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