Fuel System Precautions
FUEL SYSTEM1. When disconnecting the high fuel pressure line, a large amount of gasoline will spill out, so observe the following procedure.
a. Put a container under the connection.
b. Slowly loosen the connection.
c. Disconnect the connection.
d. Plug the connection with a rubber plug.
2. When connecting the flare nut or union bolt on the high pressure pipe union, observe the following procedure:
[Union bolt type]
a. Always use a new gasket.
b. Hand tighten the union bolt.
c. Tighten the bolt to the specified torque.
Torque: 300 kg-cm (22 ft-lb, 29 N.m)
[Flare nut type]
a. Apply a thin coat of oil to the flare and tighten the flare nut by hand.
b. Then using SST, tighten the nut to the specified torque.
SST: 09631-22020
Torque: 310 kg-cm (22 ft-lb, 34 N.m)
NOTE: Use a torque wrench with fulcrum length of 30 cm (11.81 in.).
3. Observe the following precautions when removing and installing the injectors.
a. Never reuse an 0-ring.
b. When placing an 0-ring on the injector, take care not to damage it in any way.
c. Lubricate the 0-ring with spindle oil or gasoline before installing - never use engine, gear or brake oil.
4. Install the injector to the delivery pipe and cylinder head as shown.
5. Confirm that there are no fuel leaks after performing any maintenance on the fuel system.
a. With engine stopped, turn the ignition switch "ON".
b. Using a service wire, short terminals +B and Fp of a the check connector.
NOTE: The check connector is located near the air flow meter.
c. When the fuel return hose is pinched, the pressure within the high pressure line will rise to about 4 kg/cm2 (57 psi, 392 kPa). In this state, check to see that there are no leaks from any part of the fuel system.
CAUTION: Always pinch the hose. Avoid bending as it may cause the hose to crack.