Injector unit housing - removal and refitting

Fuel and exhaust systems - Mono Jetronic fuel injection / Injector unit housing - removal and refitting

Removal
1 Remove the air inlet duct and manifold.

2 Detach the fuel feed and return lines from their connections on the side of the injector unit. Allow for fuel spillage as they are detached and plug the hoses to prevent further leakage and the ingress of dirt.

3 Disconnect the wiring plugs from their connections on the injector unit (see illustration).

8.3 Injector unit lower body and associated components

1 Throttle valve stop screw 2 O-ring
3 Plug
4 Screw
5 Retainer
6 Connector
7 Connector
8 Throttle valve potentiometer 9 Injector lower body
10 Water separator
11 Screw
12 Throttle valve positioner 13 Throttle damper adjuster screw 14 Throttle damper
15 Bracket
16 Protector grommet (for idle switch) 17 Idle switch
18 Screw

4 Disconnect the accelerator cable from the throttle lever at the injector unit.

5 Undo the retaining screws and withdraw the injector unit housing from the inlet manifold. Remove the gasket and if damaged or in doubtful condition, renew it when refitting the injector unit.

Refitting
6 Refit in the reverse order of removal. Ensure that the mating faces of the housing and fuel lines are clean before reconnecting.