FUEL SYSTEM
139
Important Operations
Performance this test before disassembling the injection
nozzle.
1) Install the injection nozzle to the nozzle tester.
2) Use the nozzle tester to apply compressed fuel at
185 kgf/cm
2
(2,630 psi/18.1 MPa) to the injection
nozzle.
3) Check the area around the nozzle seat for fuel
leakage.
If there is fuel leakage, the injection nozzle and the
injection body must be replaced as a set.
2. Injection Nozzle
1) Remove the injection nozzles from the nozzle
holders.
The nozzle needle valve and nozzle body
combinations must be interchange.
2) Immerse the injection nozzles in a tool tray filled
with clean diesel fuel to protect them from dust.
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