Removing and installing fuel injectors Fig. 5 Screw adapter on to nozzle holder. Screw on inertia extractor and knock out nozzle holder. Take sealing ring off the injection nozzle. Check and repair injector, see page 33. 5 Installing fuel injectors Fig. 6 Insert new sealing ring, apply “Never Seeze” to the contact points of the nozzle holder and insert nozzle holder with nozzle into cylinder head. Screw in injector with new seal. Screw on union nut and tighten to specified torque. 6 Fig. 7 (Example) The lubricant, which is available as a spray, must be applied to the inside of the pressure screw, to the threaded portion of the pressure screw and to the nozzle holder (see shaded area). 7 Fig.
8 Fit fuel return line together with new sealing rings to the nozzle holders and tighten to specified torque. Screw the pressure lines to the nozzle holders and to the injection pump and tighten to specified torque. Fit the charge-air elbow and the charge-air pipes to the turbocharger. Exchange the O-ring seals. 8 32