Fuel Injector: Service and Repair
REMOVAL1. REMOVE AIR CLEANER HOSE
2. REMOVE INTAKE AIR CONNECTOR ASSEMBLY
3. REMOVE FUEL PRESSURE REGULATOR
4. DISCONNECT FUEL INLET PIPE
CAUTION: Catch leaking fuel in a container.
5. REMOVE FUEL PIPE
6. DISCONNECT INJECTOR CONNECTORS
7. 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 4 bolts and delivery pipes together with the 6 injectors
b. Remove the 4 spacers from the intake manifold.
c. Pull out the 6 injectors from the delivery pipes.
d. Remove the 2 O-ring and insulator from each injector.
INSTALLATION
1. INSTALL INJECTORS AND DELIVERY PIPES
a. Install a new insulator to each injector.
b. Apply a light coat of spindle oil or 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 6 injectors.
d. Position the injector connector outward.
e. Place the 4 spacers in position on the intake manifold.
f. Place the delivery pipes with the 6 injectors in position on the intake manifold.
g. Temporarily install the 4 bolts holding the delivery pipes to the intake manifold.
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 the injector connector outward.
2. CONNECT INJECTOR CONNECTORS
3. INSTALL FUEL PIPE AND TIGHTENING DELIVERY PIPE HOLDING BOLTS
a. Install the fuel pipe with 4 new gaskets and the 2 union bolts.
Torque: 34.3 Nm (350 kg.cm, 25 ft.lb)
b. Tighten the 4 bolts holding the delivery pipes to the intake manifold.
Torque: 13 Nm (130 kg.cm, 10 ft.lb)
4. CONNECT FUEL INLET PIPE
a. Temporarily install the inlet pipe with 2 new gaskets, union bolt and bolt.
b. Tighten the clamp bolt.
Torque: 8 Nm (80 kg.cm, 71 in.lb)
c. Tighten the union bolt.
Torque: 34.3 Nm (350 kg.cm, 25 ft.lb)
5. INSTALL FUEL PRESSURE REGULATOR
6. INSPECT AIR ASSIST LINES AND CONNECTIONS
Visually check for loose connections, sharp bends or damage.
7. INSTALL INTAKE AIR CONNECTOR ASSEMBLY
8. INSTALL AIR CLEANER HOSE
9. CHECK FOR FUEL LEAKS