Fuel Injector: Service and Repair

FUEL SYSTEM

a. Observe these precautions when removing and installing the injector.




1. Never reuse the O-ring.
2. When placing a new O-ring on the injector, take care not to damage it in any ways.
3. Coat a new O-ring with spindle oil or gasoline before installing but never use engine, gear or brake oil.




b. Install the injector to the delivery pipe and cylinder head, as shown in the illustration.

INJECTOR

REMOVAL

1. REMOVE SUSPENSION UPPER BRACE

2. REMOVE NO. 2 CYLINDER HEAD COVER

3. DISCONNECT PCV HOSE




4. DISCONNECT WIRE HARNESS CLAMPS
Disconnect the 3 wire harness clamps from the clamp brackets.




5. REMOVE INJECTORS
a. Disconnect the 4 injector connectors.
b. Remove the 2 bolts holding the delivery pipe to the cylinder head.
c. Disconnect the delivery pipe together with the 4 injectors from the cylinder head.

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

d. Remove the 2 spacers and 4 grommets.
e. Pull out the 4 injectors from the delivery pipe.
f. Remove the O-ring from each injector.

INSTALLATION

1. INSTALL INJECTORS AND DELIVERY PIPES




a. Apply a light coat of spindle oil or gasoline onto a new O-ring, and install it to each injector.




b. Install the 2 spacers and 4 new insulators to the cylinder head.




c. Apply a light coat of spindle oil or gasoline on the place where a delivery pipe touches the O-ring.
d. While turning the injector clockwise and counterclockwise, push it to the delivery pipes. Then install the 4 injectors.
e. Position the injector connector upward.




f. Attach the delivery pipe together with the 4 injectors to the cylinder head.
g. Temporarily install the 2 bolts to hold the delivery pipe to the cylinder head.




h. Check that the injectors rotate smoothly.

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

i. Position the injector connector upward.




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

Torque: 19 N.m (190 kgf.cm, 13 ft.lbf)

k. Connect the 4 injector connectors.




2. CONNECT WIRE HARNESS CLAMPS
Connect the 3 wire harness clamps to the clamp brackets.

3. CONNECT PCV HOSE

4. INSTALL NO. 2 CYLINDER HEAD COVER

5. INSTALL SUSPENSION UPPER BRACE