Fuel System

FUEL SYSTEM
1. When disconnecting the conne9tion of the high fuel pressure line, a large amount of gasoline will come 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) Torque 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.
(b) Then using SST, tighten the unt to the specified torque.
SST 09631-22020
Torque: 310 kg-cm (22 ft-lb, 30 N-m)

NOTE: Use a torque wrench with a fulcrum length of 30 cm (11.81 in.)





3. Take the following precautions when removing and installing the injectors.
(a) Never re-use an 0-ring.
(b) When placing an 0-ring on the injector,use 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 intake manifold as shown in the figure.





5. Confirm that there are no fuel leaks after performing maintenance on the fuel system.
(a) With engine stopped, turn the ignition switch on.
(b) Short terminals Fp and + B of the check connector.





(c) When the pressure regulator fuel return hose (shown in the figure at left), is pinched, the pressure within the high pressure line will rise to approx. 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.