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Refitting
8 Refitting is a reversal of removal, but first
insert all mounting bolts finger tight, then
tighten the flywheel end bolts followed by the
brush end bolts.
10 Starter motor - testing and
overhaul
5
If the starter motor is thought to be suspect,
it should be removed from the vehicle and
taken to an auto-electrician for testing. Most
auto-electricians will be able to supply and fit
brushes at a reasonable cost. However, check
on the cost of repairs before proceeding as it
may prove more economical to obtain a new
or exchange motor.
11 Ignition switch - removal and
refitting
4
The ignition switch is integral with the
steering column lock, and can be removed as
described in Chapter 10.
12 Oil pressure warning light
switch - removal and refitting
2
Removal
1 The switch is located at the front of the
cylinder block, above the oil filter mounting.
Note that on some models access to the
switch may be improved if the vehicle is
jacked up and supported on axle stands so
that the switch can be reached from
underneath (see “Jacking and vehicle
support”).
2 Disconnect the battery negative lead.
3 Remove the protective sleeve from the
wiring plug (where applicable), then
disconnect the wiring from the switch.
4 Unscrew the switch from the cylinder block,
and recover the sealing washer. Be prepared
for oil spillage, and if the switch is to be left
removed from the engine for any length of
time, plug the hole in the cylinder block.
Refitting
5 Examine the sealing washer for signs of
damage or deterioration and if necessary
renew.
6 Refit the switch, complete with washer, and
tighten it securely. Reconnect the wiring
connector.
7 Lower the vehicle to the ground then check
and, if necessary, top-up the engine oil as
described in “Weekly checks”.
13 Electronic oil level sensor -
general information
1 Some 1985 XU series engine models have
an oil level sensor fitted to the engine sump,
together with a warning lamp on the
instrument panel. The system was only fitted
on the 1985 model year, and has been
deleted from later models.
2 The sensor incorporates a high-resistance
wire, which varies in conductivity depending
on whether it is immersed in or above the oil.
An electronic control unit mounted under the
right-hand side of the facia monitors the
conductivity, and operates the warning lamp
when necessary.
3 It should be noted that the system only
functions accurately if the car is on a level
surface. When the ignition is initially switched
on, the warning lamp should light for two
seconds. If the oil level is correct, the lamp will
then go out, but if it starts to flash the oil level
is low.
4 To prevent the system functioning
unnecessarily after the engine has started, the
control unit is earthed through the oil pressure
switch. The level check is made before
starting the engine. Some early models are
not earthed through the oil pressure switch
and on these, the warning lamp may flash if
for instance the engine is temporarily stalled
and the oil has not returned to the sump.
5A•4 Starting and charging systems
9.5 Starter motor brush end bracket retaining bolts on XV, XW
and XY series engines
9.6 Removing the starter motor mounting bolts on XV, XW
and XY series engines