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Workshop Manual, TSD3450E, Issue 1 51
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Electronic injector units
To remove and to fit Operation 3-12
Special requirements
To remove
Warning! The electrical circuit for the fuel injector units operates on 110 volts. Do NOT work on the fuel injector
units unless the power supply to the ECM has been disconnected.
1 Remove the relevant rocker shaft assembly, Operation 3-2.
2 Loosen the two nuts and remove the electrical connector from the injector unit.
3 Mark the valve bridge pieces to assist during assembly, then remove them.
4 Remove the bolt (A2) from the spacer and clamp which retain the injector unit and use the special tool,
GE50021, to release the injector unit from the cylinder head.
Caution: If more than one injector unit is to be removed, make a note of the trim code (A1), a four-digit number
adjacent to the bar code, and also the cylinder to which the unit is fitted.
5 Remove the injector unit, together with the spacer and clamp.
6 Use the vacuum pump, GE50028, together with the tube, GE50030, and bottle, GE50029, to extract any
fuel which has spilled into the combustion chamber during removal of the injector.
Special tools
Description Part number Description Part number
Injector installer/removal GE50021 Brush GE50022
Vacuum pump GE50028 Brush GE50023
Tube GE50030
Brush GE50024
Bottle GE50029
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