Installation

1NZ-FE FUEL: FUEL INJECTOR: INSTALLATION

INSTALLATION

1. INSTALL FUEL INJECTOR ASSEMBLY

(a) Apply a light coat of gasoline or spindle oil to new O-rings, then install one onto each fuel injector.
(b) Apply a light coat of gasoline or spindle oil to the contact surfaces of the fuel delivery pipe and the O-ring of the fuel injector.

(c) While turning the fuel injector left and right, install it onto the fuel delivery pipe.
NOTICE:
- Do not twist the O-ring.
- After installing the fuel injectors, check that they turn smoothly. If not, replace the O-ring with a new one.

2. INSTALL INJECTOR VIBRATION INSULATOR
(a) Install 4 new injector vibration insulators onto the cylinder head.

3. INSTALL DELIVERY PIPE NO. 1 SPACER
(a) Install the 2 No. 1 delivery pipe spacers onto the cylinder head.
NOTE: Install the delivery pipe No. 1 spacer in the correct direction.

4. INSTALL FUEL DELIVERY PIPE SUB-ASSEMBLY

(a) Install the fuel delivery pipe sub-assembly with the 4 fuel injectors, then provisionally install the 3 bolts.
NOTICE:
- Do not drop the fuel injectors when installing the fuel delivery pipe sub-assembly.
- Check that the fuel injectors rotate smoothly after installing the fuel delivery pipe sub-assembly.

(b) Tighten the 3 bolts to the specified torque.
Torque: 19 Nm (194 kgf-cm, 14 ft-lbf)
Torque: 9.0 Nm (92 kgf-cm, 80 in-lbf)
5. CONNECT FUEL TUBE SUB-ASSEMBLY

(a) Insert the fuel tube connector into the fuel delivery pipe until a click sound can be heard.
NOTICE:
- Check that there are no scratches or foreign matter around the disconnected parts of the fuel tube connector and pipe before performing this work.
- After connecting the fuel tube, check that the fuel tube connector and pipe are securely connected by pulling them.

(b) Install the fuel pipe clamp.
6. INSTALL CYLINDER HEAD COVER SUB-ASSEMBLY

(a) Apply seal packing to the cylinder head as shown in the illustration.
Seal Packing:
Toyota Genuine Seal Packing Black, Three Bond 1207B or Equivalent
NOTICE:
- Remove any oil from the contact surface.
- Install the cylinder head cover sub-assembly within 3 minutes of applying the seal packing.
- Do not start the engine for at least 2 hours after the installation.

(b) Install the cylinder head cover sub-assembly with the 9 bolts, 2 nuts and 2 seal washers.

(d) Install the wire harness bracket with the bolt.
Torque: 13 Nm (133 kgf-cm, 9.6 ft-lbf)

(e) Connect the connector and wire harness clamp shown in the illustration and connect the engine wire harness.

(f) Connect the fuel injector connectors.

7. CONNECT VENTILATION HOSE NO. 2
(a) Connect ventilation hose No. 2.

8. CONNECT VENTILATION HOSE
(a) Connect the ventilation hose.
9. INSTALL IGNITION COIL NO. 1 Installation
10. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
Torque: 5.4 Nm (55 kgf-cm, 48 in-lbf)
11. CHECK FOR FUEL LEAKAGE Testing and Inspection
12. CHECK FOR ENGINE OIL LEAKAGE
13. INSTALL CYLINDER HEAD COVER NO. 2 Installation