Fig. 9 Fuel Injector Ports

(5)Install the injector assemblies into their holes and install the attaching bolts. Draw the fuel rail assembly evenly into the intake manifold, making sure each injector enters its own hole. The oil separator bracket must be on top of the fuel rail bracket (Fig. 8).

(6)Once all injectors are evenly seated, tighten the fuel rail attaching bolts to 23 NIm (200 in. lbs.) torque.

(7)Connect the fuel injector wiring harness to the main harness.

(8)Lubricate the ends of the chassis tubes with clean 30 weight engine oil.

(9)Connect fuel hose quick connect fittings to the chassis fuel tubes. Pull on the fittings to ensure complete connection.

Refer to Quick Connect Fittings in the Fuel Delivery Section of this group.

(10)Connect the vacuum hose to the fuel pressure regulator.

(11)Connect negative cable to battery.

CAUTION: When using the ASD Fuel System Test, the Auto Shutdown (ASD) Relay remains energized for either 7 minutes, until the test is stopped, or until the ignition switch is turned to the Off position.

(12) With the DRB II use the ASD Fuel System Test to pressurize the fuel system to check for leaks.

FUEL INJECTORS

Remove the fuel rail to service the injectors. Refer to Fuel Injector Rail Assembly in this section.

REMOVAL

(1)Disconnect injector electrical connector from injector. (Fig. 10).

(2)Position fuel rail assembly so that the fuel injectors are easily accessible (Fig. 11).

Fig. 10 Fuel Rail and Injector Assembly

Fig. 11 Servicing Fuel Injectors

(3)Remove injector lock ring off the fuel rail and injector. Pull injector straight out of fuel rail receiver cup (Fig. 11).

(4)Check injector O-ring for damage. If O-ring is damaged, it must be replaced. If injector is reused, a protective cap must be installed on the injector tip to prevent damage.

(5)Repeat for remaining injectors.

INSTALLATION

(1)Before installing an injector, the rubber O-ring must be lubricated with a drop of clean engine oil to aid in installation.

(2)Being careful not to damage the O-ring, install injector top end into fuel rail receiver cup.

(3)Install injector lock ring by sliding open end into slot of the injector and onto the receiver cup ridge into the side slots of ring (Fig. 11).

(4)Repeat steps for remaining injectors.

(5)Install injector wiring harness to injectors. Place harness into retaining clips.