Remove the oil pan protection plate and the right engine mudguard (see Removal the oil pan protection plate and mudguards of the injection engine).
Disconnect the generator terminal "D" wire.
Having moved the rubber cover, using a 10 mm wrench, we unscrew the nut securing the wires to terminal "B"…
…and we take them off.
Remove the coolant pump drive belt (see Adjusting the tension and replacing the coolant pump drive belt).
Using a 13 mm head, unscrew the nut of the generator mounting bolt to the tension bar.
Using a 13 mm spanner, unscrew the nut of the generator lower mounting bolt to the bracket on the cylinder block and remove the bolt. Remove the generator from the engine compartment downwards.
Having released the three tabs of the casing,…
…we take it off.
Using a Phillips screwdriver, unscrew the two screws..
…and we remove the voltage regulator with the brush holder.
We disconnect the wire and remove the voltage regulator with the brush holder.
Using a 10 mm spanner, unscrew the nut…
…we remove the sleeve and the capacitor wire.
After unscrewing the screw with a Phillips screwdriver,…
…we remove the capacitor.
Using a Phillips screwdriver, unscrew the screw securing the rectifier block and the three screws securing the ends of the stator windings.
Insulating washers are placed on the screws securing the ends of the stator windings.
We take away the ends of the stator windings..
…and remove the rectifier block.
Using a 21 mm open-end wrench, loosen the pulley mounting nut while holding the rotor with an 8 mm Allen key.
We remove the washer and pulley parts.
Remove the washer from the rotor shaft.
Using a Phillips screwdriver, unscrew the four screws holding the covers together.
Using a sharp scriber or paint, mark the relative positions of the covers and the stator for subsequent assembly.
Prying it off with a screwdriver,…
…we separate the front cover with the stator and the rear cover with the rotor.
Using a screwdriver, pry the stator...
...we take it out of the front cover.
With a punch that rests strictly against the end of the rotor shaft (to avoid damaging the plastic bushing located under the contact rings),…
…we knock the rotor with the bearing out of the rear cover.
Using a puller, we press the bearing off the rotor shaft.
We press the new bearing onto the shaft using a suitable piece of pipe, applying force to the inner ring.
Using a tester, we check the stator and rotor windings for breakage or short circuit to the housing.