Fuel Injector: Service and Repair

FUEL SYSTEM




a. Observe the following precautions when removing and installing the injector.
1. Never reuse the O-ring.
2. When placing a new O-ring on the injector, be careful not to damage it in any way.
3. Coat a new O-ring with spindle oil or gasoline before installing. Never use engine, gear or brake oil.




b. Install the injector to the delivery pipe and cylinder head, as shown in the illustration. Before installing the injector, be sure to apply spindle oil or gasoline on the area where the delivery pipe or cylinder head touches the O-ring or injector grommet.

INJECTOR

REMOVAL

1. REMOVE NO.2 CYLINDER HEAD COVER
2. REMOVE CYLINDER HEAD COVER




3. DISCONNECT FUEL TUBE
a. Remove the fuel pipe clamp.
b. Disconnect the fuel tube (fuel tube connector) from the fuel pipe.

CAUTION:
- Perform disconnecting operations of the fuel tube connector (quick type) after observing the precautions.
- As there is retained pressure in the fuel pipe line, prevent it from splashing inside the engine compartment.




4. REMOVE DELIVERY PIPE AND INJECTORS

NOTE: Be careful not to drop the injectors when removing the delivery pipe.

a. Disconnect the 4 injector connectors from the injector.
b. Remove the 3 bolts and delivery pipe together with the 4 injectors and fuel pipe.
c. Remove the 2 spacers from the cylinder head.
d. Pull out the 4 injectors from the delivery pipe.
e. Remove the O-rings and grommets from each injector.

INSTALLATION




1. INSTALL INJECTORS AND DELIVERY PIPES
a. Install a new grommet to each injector.
b. Apply a light coat of spindle oil or gasoline to new O-ring and install them to each injector.




c. Apply a light coat of spindle oil or gasoline on the area where the delivery pipe touches the O-ring.
d. While turning the injector clockwise and counterclockwise, push it into the delivery pipes. Install the 4 injectors.
e. Position the injector connector outward.
f. Place the 2 spacers in position on the cylinder head.




g. Apply a light coat of spindle oil or gasoline on the area where the cylinder head touches the injector grommet.
h. Place the delivery pipe and fuel pipe together with the 4 injectors in position on the cylinder head.
i. Temporarily install the 2 bolts holding the delivery pipe to the cylinder head.
j. Temporarily install the bolt holding the fuel pipe to the cylinder head.




k. Check that the injectors rotate smoothly.

HINT: If the injectors do not rotate smoothly, the probable cause is incorrect installation of the O-ring. Replace the O-ring.

l. Position the injector connector outward.




m. Tighten the 2 bolts holding the delivery pipe to the cylinder head.

Torque: 19 Nm (190 kgf.cm, 14 ft.lbf)

n. Tighten the bolt holding the fuel pipe to the cylinder head.

Torque: 9.0 Nm (92 kgf.cm, 80 in.lbf)

2. CONNECT FUEL TUBE




a. Connect the fuel tube (fuel tube connector) to the fuel pipe.

CAUTION: Perform connecting operations of the connector (quick type) after observing the precautions.

b. Install the fuel pipe clamp.

3. INSTALL WIRE HARNESS PROTECTOR COVER
a. Install the wire harness protector cover with the bolt and the 2 nuts.
b. Connect the PCV hose to the cylinder head cover.

4. CONNECT HIGH TENSION CORDS
Connect high tension cords to ignition coils.