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Removing and Installing Injectors

To remove an injector, first unscrew the fuel pipe union nuts at both the injection pump and the injectors, and detach the fuel pipes as a unit. Then remove the fuel return hoses from between the injectors. Using a 27 mm deep-well socket, unscrew the injector from the cylinder head.

CAUTION-

Be absolutely sure to remove the heat shield from the bottom of each injector hole. When reinstalling, always use a new heatshield. See Fig. 5-25.

To install, torque the injectors to 70 Nm (51 ft. lb.), and the fuel pipe union nuts to 25 Nm (18 ft. lb.).

NOTE-

Bleeding air from the system is not necessary.

Fig. 5-25. Proper installation of the fuel injector heat shield. Arrow points down, away from injector.

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