Fuel Injector: Service and Repair
Injector Part 1:
Injector Part 2:
REMOVAL
1. REMOVE V-BANK COVER
2. REMOVE INTAKE AIR CONNECTOR PIPE
3. DISCONNECT ENGINE WIRE PROTECTOR FROM UPPER INTAKE MANIFOLD AND BEARING CAP
a. Remove and disconnect these parts;
1. VSV connector for EVAP
2. PCV hose from upper intake manifold
3. EVAP hose from VSV for EVAP
4. No.3 V-bank cover bracket from No.1 engine hanger
5. VSV for EVAP from upper intake manifold
6. No.2 V-bank cover bracket from upper intake manifold
b. Remove the 4 bolts, and disconnect the engine wire protector from the upper intake manifold and camshaft bearing cap.
4. DISCONNECT ENGINE WIRE FROM RH DELIVERY PIPE
Disconnect the 2 wire clamps on the engine wire from the brackets on the delivery pipe
5. REMOVE FUEL PRESSURE PULSATION DAMPERS
6. REMOVE DELIVERY PIPES AND INJECTORS
NOTE:
- Be careful not to drop the injectors when removing the delivery pipes.
- Pay attention to put any hung load on the injector to and from the side direction.
a. Remove the bolt, and disconnect the No.1 V-bank cover bracket from the upper intake manifold.
b. Remove the 2 nuts and V-bank cover bracket sub-assembly.
c. Disconnect the 8 injector connectors.
d. Remove the 4 nuts holding the delivery pipes to the lower intake manifold.
e. Remove the 2 delivery pipes, 8 injectors and 4 spacers.
f. No.5, No.6, No.7 and No.8 Injectors;
Remove the injector cover from each injector.
g. Remove the 2 O-rings, grommet and insulator from each injector.
INSTALLATION
1. INSTALL INJECTORS AND DELIVERY PIPES
NOTE:
- Be careful not to drop the injectors when installing the delivery pipes.
- Pay attention to put any hung load on the injector to and from the side direction.
a. Install a new grommet and new insulator to each injector.
b. Apply a light coat of gasoline to 2 new O-rings and install them to each injector.
c. While turning the injector clockwise and counterclockwise, push it to the delivery pipes. Install the 8 injectors.
d. Position injector connector outward.
e. Place the 4 spacers on the intake manifold.
f. Place the 2 delivery pipes and injectors assemblies on the lower intake manifold.
g. Temporarily install the 4 nuts.
h. Check that the injectors rotate smoothly.
HINT: If injectors do not rotate smoothly, the probable cause is incorrect installation of O-rings. Replace the O-rings.
i. Position injector connector outward.
j. Tighten the 4 nuts holding the delivery pipes to the lower intake manifold.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
k. Connect the 8 injectors connectors.
l. Install the V-bank cover bracket sub-assembly with the 2 nuts.
Torque: 18 N.m (185 kgf.cm, 13 ft.lbf)
m. Install the No.1 V-bank cover bracket with the bolt.
2. INSTALL FUEL PRESSURE PULSATION DAMPERS
3. INSTALL ENGINE WIRE TO LH DELIVERY PIPE
Install the 2 wire clamps on the engine wire to the brackets on the delivery pipe.
4. INSTALL ENGINE WIRE PROTECTOR
a. Install the engine wire protector with the 4 bolts.
b. Install and connect these parts:
1. VSV connector for EVAP
2. PCV hose to upper intake manifold
3. EVAP hose to VSV for EVAP
4. No.3 V-bank cover bracket to No.1 engine hanger
5. VSV for EVAP to upper intake manifold
6. No.2 V-bank cover bracket to upper intake manifold
5. INSTALL INTAKE AIR CONNECTOR PIPE
6. INSTALL V-BANK COVER