Chapter 5 Engine electrical systems
Ltrn~i line
Sol&red
\
\
Wear
limit line
16.12a If the brushes are worn past the wear limit line, they 16.12b If the brushes are being replaced, unsolder and solder
should be replaced the pigtails at the area shown
16.13 When installing new brushes, they should extend out of
the holder the proper amount
11 Unsolder the regulator/brush holder (see illustration). Note: While
applying heat to electrical components, it’s a good idea to use a parr ot
needle-nosepliers as a heat sink. Don ‘tapply heat for more than about We
seconds.
12 Inspect the brushes for excessive wear (see illustration) and re-
: place them if necessary by unsoldering (see illustration).
13 When installing new brushes. solder the pigtails sothe brush llmlt line
=
will
be about 0.079 to 0.118 inch above the end of the brush holder (see
illustration).
14 To reassemble. compress the brushes into their holder and retarn
them with a straight piece of wire that can be pulled from the back ot the
alternator when reassembled (see illustration).
15 To reassemble, reverse disassembly procedure.
17 Starting system-general information and precautions
The sole function of the starting system Is to turn over the engine quack-
ly enough to aTTow it to start.
The starting system consists of the battery, the starter motor, the start-
er solenoid and the wires connecting them. The solenoid is mounted dl-
rectly on the starter motor.
The solenoid/starter motor assembly is installed on the transmlsslon
bellhousing.
When the ignition key is turned to the Start position, the starter sole-
noid is
actuated
through the starter control clrcult. The starter solenoid
then connects the battery to the starter. The battery supplies the electrical
energy to the startermotor, which does the actual work of cranking the en-
gine.
16.14 When placing the two covers together, use a piece of wire
through the rear case and into the brush holder to retain the
brushes in the holder
Always observe the following precautions when working on the start-
ino system:
ai Excekslve cranking of the starter motor can overheat It and cause
venous aama$e. Never operate the starter motor for more than 3d
secollds at a time without pausing to allow it to cool for at least two
minutes.
0) The starter is connected directly to
the battery
and could arc or
cause a iire of mishandled, overloaded or shorted out.
cj Always detach the cable from the negative terminal of the battery
before working on the starttng system.
16 Starter motor - in-vehicle check
Note: Before diagnosing starterproblems, make sure the battery IS tully
charged.
1 If the starter motor
dOeS
not turn
at all
when the switch
IS operated,
makesure that the shitt!ever
IS
in Neutral or Park [automatic transmissionj
or that the clutch pedal
IS
depressed (manual transmission).
To Next Page
Loading...
Need help?
General
