ENGINE FUEL 6C - 23
DISASSEMBLY (4JBI/4JB1T Engine)
1. Retaining Nut
2. Injection Nozzle
1) Remove the nozzle assemblies from the nozzle
holders.
Tag the nozzle assemblies and the nozzle holders to
ensure that they are reinstalled in their original
positions.
The nozzle assembly and nozzle holder combinations
must not be interchanged.
2) Immerse the injection nozzle in a tool tray filled with
clean diesel oil to protect them from dust.
3. Spacer
4. Spring Seat
5. Spring
6. Adjusting Shim
7. Nozzle Holder
INSPECTION AND REPAIR (4JB1/4JB1 T
Engine)
Make the necessary adjustments, repairs, and part
replacements if excessive wear or damage is discovered
during inspection.
Inspection Nozzle Needle Inspection
1. Remove the needle from the nozzle body.
2. Carefully wash the nozzle needle and the nozzle body
in clean diesel fuel.
3. Check that the nozzle needle moves smoothly inside
the injection nozzle body.
If the nozzle needle does not move smoothly, it must
be repaired (See "Nozzle Lapping Procedure" belows).
6C-22-1.tif
6C-22-2.tif
6C-22-3.tif
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