Isuzu NPR 4J Series User Manual

ENGINE FUEL 6C - 11
CAUTION
• If the needle valve does not slide smoothly repair or
replace with a new nozzle assembly.
Nozzle lapping procedure
• Apply thinly a compound (Chrome oxide kneaded with
an animal oil) to the seat of needle valve and lap.
CAUTION
• Excess compound may cause worn needle valve, and
be sure to wash out the compound after lapping.
Nozzle body & needle
• Check nozzle body and end for seizure.
If significantly seized, replace as a nozzle assembly
basis. Also replace as a nozzle assembly basis, if
needle valve end is deformed or seized.
CAUTION
• If either nozzle body or needle valve is faulty, replace
with a new nozzle assembly.
REASSEMBLY (4JG2 Engine)
To reassemble, follow the removal steps in the reverse order,
noting the following point.
CAUTION
• Be careful to fit spacer because positioning pins are
set off.
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Isuzu NPR 4J Series Specifications

General

Brand	Isuzu
Model	NPR 4J Series
Category	Engine
Language	English