9 Prior to refitting the brushes, check the
condition of the commutator face on which
they run. Wipe the commutator with a solvent-
moistened cloth. If the commutator is dirty, it
may be cleaned with fine glass paper, then
wiped with the cloth.
10 Fit the new brushes using a reversal of the
removal procedure. When refitting the brush
holder assembly, carefully compress the
brushes one at a time using pointed-nose
pliers, tip the holder slightly and ease the
brushes over the commutator (see
illustration).
M79 starter motor -
4-cylinder engines
11 Undo the two retaining screws and
remove the end cap and seal.
12 Wipe free the grease from the end of the
armature shaft then prise free and remove the
C-clip from the shaft groove. Remove the
spacer(s).
13 Unscrew the retaining nut and detach the
connecting link from the solenoid.
14 Undo the two retaining screws and
withdraw the solenoid yoke from the drive end
housing. Lift it upwards and disengage the
solenoid armature from the actuation lever in
the end housing.
15 Unscrew and remove the two through-
bolts then remove the commutator end
housing from the yoke and armature unit.
16 Detach the brush housing insulator and
withdraw the brushes from the housing.
17 If the brushes have worn down to or
beyond the minimum length specified, they
must be renewed as a set. To renew them, cut
their leads mid-point and make a secure
soldered joint when connecting the new
brushes.
18 Prior to refitting the brushes, check the
condition of the commutator face on which
they run. Wipe the commutator with a solvent-
moistened cloth. If the commutator is dirty, it
may be cleaned with fine glass paper, then
wiped with the cloth.
19 Fit the new brushes and reassemble the
starter motor unit using a reversal of the
removal procedure. Make sure that the
brushes move freely in their holders. When
fitting the armature unit to the yoke, engage
the actuating arm in the drive end housing
together with the plastic bracket (locates in
the notch in the yoke face) and rubber block.
Ensure that the drive end housing is correctly
aligned before fully tightening the retaining
screws.
DR 5U1 starter motor -
V6 engines
20 Brushes are not separately available for
this starter motor and, should renewal be
necessary, a complete brush holder and yoke
assembly must be obtained. As this is likely to
be prohibitively expensive, a better alternative
may be to obtain a complete reconditioned
starter motor, or seek the advice of an
automobile electrician.
Engine electrical systems 5•13
5
1380 Rover 800 Series Remake
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