CAUTION / NOTICE / HINT
Note
When replacing the injector assemblies (including exchanging the injector assemblies between the cylinders), common rail assembly, intake manifold or cylinder head sub-assembly, it is necessary to replace the injection pipe sub-assemblies with new ones.
When replacing the injector assemblies, supply pump assembly, common rail assembly, intake manifold or cylinder head sub-assembly, it is necessary to replace the fuel inlet pipe sub-assembly with a new one.
PROCEDURE
REMOVE NO. 1 ENGINE COVER (w/ No. 1 Engine Cover)
REMOVE AIR CLEANER CAP SUB-ASSEMBLY
REMOVE AIR CLEANER CASE SUB-ASSEMBLY
REMOVE NO. 1 GLOW PLUG CONNECTOR
REMOVE NO. 1 VACUUM SWITCHING VALVE ASSEMBLY
REMOVE NOZZLE LEAKAGE PIPE ASSEMBLY
REMOVE NO. 1 INJECTION PIPE SUB-ASSEMBLY
REMOVE NO. 2 INJECTION PIPE SUB-ASSEMBLY
REMOVE NO. 3 INJECTION PIPE SUB-ASSEMBLY
REMOVE FUEL INLET PIPE SUB-ASSEMBLY
DISCONNECT NO. 2 FUEL HOSE
Slide the clip and disconnect the No. 2 fuel hose from the No. 2 nozzle leakage pipe.
DISCONNECT NO. 1 FUEL HOSE
Disengage the clamp.
Slide the clip and disconnect the No. 1 fuel hose from the No. 3 nozzle leakage pipe.
REMOVE NO. 2 NOZZLE LEAKAGE PIPE
Slide the clip and disconnect the fuel hose from the No. 4 nozzle leakage pipe.
Disconnect the supply pump assembly connector.
Disengage the clamp to disconnect the wire harness from the wiring harness clamp bracket.
Remove the bolt and wiring harness clamp bracket from the fuel pump protector.
Slide the clip and disconnect the No. 2 fuel hose from the No. 2 nozzle leakage pipe.
Disconnect the fuel temperature sensor connector.
Remove the 2 bolts and No. 2 nozzle leakage pipe from the cylinder head cover sub-assembly and supply pump assembly.
REMOVE FUEL PUMP PROTECTOR
Remove the 2 bolts and fuel pump protector from the supply pump assembly.
Note
When the fuel pump protector fastening bolt has been loosened, tighten the supply pump assembly fastening bolt to the specified torque.
REMOVE SUPPLY PUMP ASSEMBLY
Remove the 3 bolts and supply pump assembly from the cylinder head sub-assembly.
Remove the supply pump drive coupling from the camshaft or supply pump assembly.
REMOVE NO. 4 NOZZLE LEAKAGE PIPE
| *1 | Union Bolt |
| *2 | Gasket |
Remove the union bolt, No. 4 nozzle leakage pipe and gasket from the supply pump assembly.
REMOVE NO. 3 NOZZLE LEAKAGE PIPE
| *1 | Union Bolt |
| *2 | Gasket |
Remove the union bolt, No. 3 nozzle leakage pipe and gasket from the supply pump assembly.