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, it is necessary to replace the injection pipe sub-assemblies with new ones.
Tech Tips
After replacing any of the injector assemblies, perform both the "Injector Compensation" and the "Pilot Quantity Learning Values Reset" functions using the GTS.
PROCEDURE
REMOVE EGR WITH COOLER PIPE SUB-ASSEMBLY
REMOVE NO. 1 EGR COOLER BRACKET
REMOVE NO. 1 INJECTION PIPE SUB-ASSEMBLY
Note
After removing the injection pipe sub-assembly, cover the common rail assembly with protective tape to prevent dirt or foreign matter from entering the pipe inlet. Also protect the injector inlets by covering them with protective tape or plastic bags.
| *1 | No. 1 Injection Pipe Sub-assembly |
| *2 | No. 2 Injection Pipe Sub-assembly |
| *3 | No. 3 Injection Pipe Sub-assembly |
Using a 17 mm union nut wrench, separate the union nut from the injector assembly first, then from the common rail assembly.
Remove the No. 1 injection pipe sub-assembly.
REMOVE NO. 2 INJECTION PIPE SUB-ASSEMBLY
Tech Tips
Perform the same procedure as for the No. 1 injection pipe sub-assembly.
REMOVE NO. 3 INJECTION PIPE SUB-ASSEMBLY
Tech Tips
Perform the same procedure as for the No. 1 injection pipe sub-assembly.
REMOVE NO. 1 GLOW PLUG CONNECTOR
Remove the 5 screw grommets.
Remove the nut and disconnect the glow terminal.
Remove the 4 nuts and No. 1 glow plug connector.
REMOVE NO. 2 INTAKE MANIFOLD INSULATOR
Remove the No. 2 intake manifold insulator.
REMOVE NOZZLE LEAKAGE PIPE ASSEMBLY
Disconnect the 4 connectors from the 4 injector assemblies.
| *a | Lock Bush |
Pull up the lock bush as shown in the illustration and separate the nozzle leakage pipe assembly.
Note
Do not separate the nozzle leakage pipe assembly by pulling on the hose portion. Separate it while holding onto the lock bush portion.
REMOVE NO. 1 NOZZLE HOLDER CLAMP
| *1 | Nozzle Holder Clamp |
| *2 | Nozzle Holder Clamp Seat |
| *3 | Washer |
Remove the 4 bolts, 4 washers and 4 nozzle holder clamps.
REMOVE NOZZLE HOLDER CLAMP SEAT
Remove the 4 nozzle holder clamp seats form the cylinder head.
REMOVE INJECTOR ASSEMBLY
Remove the 4 injector assemblies from the cylinder head.
Note
Each injector assembly has its own fuel injection part number. When replacing the injector assemblies, store them in the correct order so that they can be returned to their original locations when reassembled.
Arrange the injector assemblies, clamps, washers, bolts and clamp seats in the correct order.
REMOVE INJECTION NOZZLE SEAT
Remove the 4 injection nozzle seats from the injector assemblies or cylinder head.
Note
When removing the injector assembly, check that the injector nozzle seat is either attached to the injector assembly, or remains in the cylinder head.