1973 OPEL GT-R Service Manual

1A. 4 1973 OPEL SERVICE MANUAL
gravity corrected to 80 degrees F.’ shows more than
a thirty point
(.030) drop from the initial tilling with
electrolyte, or if one or more cells’gas violently after
addition of electrolyte, the batteiy should be fulty
charged before use.
3. For best performance in cold weather (32 degrees
F. or less), or if the battery and the electrolyte are not
at 60 degrees F., or above at time of activation, warm
the battery by boost charging.
TROUBLE DIAGNOSIS
BATTERY AND CABLES. TRDUBLE DIAGNOSIS
Quick Check of Battery and Cables
Whenever electrical trouble developes, it is desirable
to make a quick check of the battery and cables to
make certain that this source of current is in good
condition, securely connected, and is functioning
properly. This check will also give a good check on
the cranking system.
1. Turn on the lights. They should’burn steadily and
with normal brilliance.
2. With lights burnings, operate the cranking motor.
Either have the headlights shining on a wall so their
brilliance can be noted, or have someone watching
the headlights.
3. When cranking motor solenoid switch is
closeh,one of the following conditions will occur; (1) Lights
will stay bright or will dim slightly if temperature is
cold, and engine will be cranked at normal speed; (P
Lights will
gb out; (3) Lights will dim considerably;
(4) Lights will stay bright but no cranking action will
take place. The first named condition indicates that
nothing is wrong with the battery, cables, and crank-
ing system. The other conditions indicate trouble
aSfollows:
4. If fightsgo
out as cranking motor solenoid switch
is closed, it indicates a poor connection in the circuit
between battery and cranking motor. Check battery
cables and clean and tighten loose or corroded termi-
nals.
5. If
lights dim considerably as cranking motor
solenoid switch is closed, it indicates that the battery
is run down, or there is a condition in cranking
mb-tor or engine which causes an excessive current drain
on the battery. A low battery will be indicated by ,a
clattering noise in cranking motor solenoid because
the battery cannot sustain the voltage required to
hold solenoid plunger “in” after switch contacts
close and the “pull in” winding is shorted out.
Test battery with a 421 Battery Test. If battery is
found to be in good condition check cranking motor.
6.Iflights stay bright but no cranking action occurswhen cranking motor solenoid switch is closed, it
indicates an open circuit in cranking motor, switch,
or control circuit.
Testing Resistance of Cables and Terminal
Connections
Battery cables and terminal connections may be
tested with equipment comprising of a voltmeter (5
volts maximum), ammeter of 300 or more amperes
capacity, and carbonpile rheostat having a minimum
capacity of 300 amperes connected in series with the
ammeter.
I. Adjust rheostat to provide maximum resistance
(“OFF” position).
2. Connect ammeter positive lead to post on starting
motor. Connect ammeter negative lead to one side of
rheostat and connect other side of rheostat to ground
on engine, preferably at point where battery ground
strap is attached. In the instrument shown in FigurelA-1, the ammeter and rheostat are connected in
series inside the case.
3. Connect voltmeter negative lead to post on start-
ing motor. Use prod with voltmeter lead, if neces-
sary, to insure direct contact with the terminal stud.
Do not connect to the ammeter lead clip.Attach a
prod to voltmeter position lead and apply the prod
to center of battery positive post (Figure lA-1.)
Make sure that clips of voltmeter leads have clean
metal contact with prods.
Figure l A-l Battery Cable Test Connections
4. Adjust rheostat until ammeter reads 200 amperes,
immediately read voltmeter, then turn rheostat to
starting (“OFF”) position to avoid excessive drain on
battery. Voltage drop across battery positive cable

BATTERY AND CABLES - ALL MODELSlA- 5
and terminal connections should not exceed 2/10
volt.
5. Connedt voltmeter positive lead to ground on en-
gine.
At&h prod to voltmeter negative lead and
apply prod to center of battery negative post. Volt-
age drop across the battery ground cable and termi-
nal conne$tions should not exceed 2/10 volt at
200amps.
6. A reading in excess of 2/10 volt when testing
either battery cable indicates excessive resistance in
cable or cpnnections. Clean and tighten cable or con-
nections. Clean and tighten cable terminals
(sub-para. c, below) and recheck for voltage drop. If volt-
age drop Still exceeds 2/10 volt, replace cable with a
genuine Buick-Opel cable to insure ample capacity.
Undercharge Failure of BatteryThe most frequent trouble experienced with storage
batteries is failure to maintain a state of charge suffi-
cient to crank the engine and also furnish current to
the ignitibn system, lights and accessories. Failure to
maintain a proper state of charge may be due to one
or more of the following conditions:
1.
Opertiting Conditions. When determining cause
of premature failure of a battery, consideration must
be given /to the conditions under which the car is
operated.,
In very low temperatures the capacity of a storage
battery
ii considerably reduced and the energy re-
quired f& cranking the. engine is considerably in-
creased. :
Frequent starting, particularly in cold weather,
ac-compani the batteqy for cranking than the generator can re-
place in the limited running time. This condition is
aggravated by night driving when lights are turned
on, or by operation of an air conditioner in heavy
traffic.
When thk car is operated under these conditions,adjusting,the voltage regulator to the high limit may
allow enough increase to keep the battery at a safe
state of charge. If the high limit setting does not
maintain a safe state of charge, an occasional booster
charge should be given to the battery.
2. Low charging Rate. In case of premature battery
failure, tbe charging rate of alternator should always
be checked and adjusted if below specifications.
3.
Zntemd Condition The internal condition of the
battery niay be such that it cannot hold a chargesatisfactoiily. Check electrolyte level and test the
battery using the 421 Battery Test.
Overcharge Failure of BatteryA common cause of battery failure is overcharging,
that is, continued input of excessive charging current
after the battery has reached a fully charged condi-
tion.
One evidence that battery is being overcharged is the
need for frequent addition of water to the battery in
order to maintain the electrolyte level above the tops
of the battery separators, since overcharging causes
rapid water loss. When this becomes evident, the
charging rate of alternator should be immediately
checked, as well as the voltage regulator, and ad-
justed to avoid internal damage to battery.
ADJUSTMENTS AND MINOR SERVICEPERIODIC BATTERY INSPECTION AND SERVICE
The battery requires very little attention, but peri-
odic inspection is essential to secure the maximum
efficiency and life. The following services are essen-
tial to maintain the battery at maximum efficiency.
WARNING: Never expose battery to open flame or
electric spark
- battery action generates hydrogen gas
which is flammable and explosive. Do not allow bat-
tery fluid to contact skin, eyes, fabrics or painted
surfaces
- fluidis a sulfuric acid solution which could
cause serious personal injury or property damage.
Wear eye protection when working with battery.
Maintain Electrolyte LevelAdd distilled water as required to maintain the elec-
trolyte level at the split ring at bottom of tiller well.
See Figure IA-2.
Figure lA-2
Battery Filler Well

j
/lA- 61973 OPEL SERVICE MANUAL
Do not overfill, as electrolyte may
be sprayed out by
gassing or may overtlow due to heat expansion dur:
ing charging.
If distilled water is not available, it is better to add
clean, mineral-free tap water than to allow the
elec2trolyte level to remain below the top of the plates:
In freezing weather the water should be added just
before using the car or otherwise charging the bat-
tery so that the water will be mixed with the acid
before it is allowed to stand in freezing temperatures.
If it is found necessary to add water to the
batterimore frequently than about every
1,ooO miles and the
quantity of water added per cell is’ excessive, check
setting of voltage regulator and adjust, if necessary:
Abnormal water loss is an indication that the battery
is being overcharged.
Inspect Battery, Mounting and Cables
Check outside of battery for damage or signs of se&ous abuse such as broken case or broken covers:
Check inside of battery by removing the vent caps
and inspecting for signs of abuse
stich as electrolyte
level too low to see, or bad or unusual odors. If
battery shows signs of serious damage or abuse, it
should be replaced.
Check the battery hold down bolts to make certain
that battery is securely held in place. The nut should
be drawn up to 20 lbs. in.;excessjve tightening may
distort or crack the battery case.If the top of battery is dirty or the hold down str?e
is corroded, clean thoroughly with a brush dipped
IFammonia or soda solution. Care must be used td
prevent any solution from getting into battery
cellslAfter the foaming of solution stops, flush off witli
clean water and dry thoroughly. If hold down strap
is corroded it should be painted with acid-resisting
paint after cleaning.
Check battery cables to make certain they are tight
at bracket and junction block. If a connection is
found loose it should be cleaned before being tight;ened as arcing and corrosion may have taken place
in the loose connection. Check condition of cables
and replace if badly corroded or frayed.
Special attention must be given to,the battery posi-
tive cable position to eliminate the possibility of con-
tact with the exhaust manifold on the 1.1 liter engine.
The cable clamp must be rotated clockwise as neces-
sary for the cable to run at a 45 degree angle toward
the right wheelhouse panel.
Cleaning Cable Terminals
If loose connections are found by inspection, or highresistance is found by voltage test, disconnect the
cable for thorough cleaning of terminals. When
removing a corroded cable terminal from battery
post, do not pry against battery case or hammer on
terminal to break it loose, since either practice will
result in broken cell covers. Use a screw-type termi-
nal puller if terminal cannot be loosened by hand.
Thoroughly clean all corrosion from disconnected
battery cable terminals and terminal posts, using
suitable wire brushes. If wire brushes are not availa-
ble, corroded terminals may be cleaned by brushing
with a strong soda solution, using care not to get
solution into battery cells.
If
cabbz strands are broken, corroded, or loose in
terminals, the cable should be replaced with the cor-
rect cable to insure ample capacity.
To prevent corrosion of battery terminals and con-
nections, apply a coating of petroleum jelly over the
battery post and cable terminals after cables have
been installed on terminals.
421 BATTERY TEST421 Battery Testers, manufactured and sold by a
number of companies, are the only battery testers
approved by Delco-Remy Division for testing one-
piece cover batteries. They are also used by United
Motors Service to determine whether or not a battery
is defective.
Figure lA-3 421 Battery Tester-Charger
The
42,l Battery Tester shows, in a few minutes, the
state-of-charge of the battery and whether it is good
or bad. The tester can be used with any 12 volt
battery, in or out of the car. The test can be made
regardless of the state of charge of the battery; it can
also be made when the electrolyte level is low
- even
below the top of the plates.

BATTERY AND CABLES - ALL MODELSlA- 7
421 Test
F$ocedure1. Visual Inspection
- The first step in testing the
Energizer br 12-V& Battery should be a visual in-
spection
which very often will save time, labor and
expense in determining the condition.
(a) Check for broken or cracked case or cover.
(b) Check ,for loose terminal posts.
fiozeck Ifor defective or mutilated sealing com-(d) Check for other visible signs of physical damage.
Obvious d?mage as a result of conditions described
above indicates the need for Energizer or batteryreplaceme$t.
2. The “421” Test is a programmed test procedure
consisting bf a series of timed discharge and charge
events, reqtdring approximately 2 to 3 minutes, that
will determine the condition of the Energizer or bat-
tery with a high degree of accuracy when used inconjunctioti with this entire test procedure. “421”
Testers
a$ produced by a number of different manu-
facturers
r+nd their directions for tester operation
should be carefully followed. General comments on
overall “42 1” Tester operation follow:
(a) Energi@rs or batteries should
nor be charged
prior to
making this test. Defects within the unit can
be hidden by the charging and erroneous test results
will be obtpined.
(b) Erratic, or extremely low, initial meter readings
may indicate poor connections at the tester termi-
nals.Obt{in clean and tight connections beforeper-
forming the 421
Test.(c) All meter readings should be made immediately
after the meter indicator light comes on even if the
meter needle is still moving.
(d) If additional discharges are required after the
initial discbarge, set meter indicator following thefast discharge cycle.
(e) Batteries designated as “bad” by the tester should
be replaced.
(f) Batteries designated as “good” with no owner’s
complaint or indication of poor performance, should
be left in s+vice. Posts, cable clamps, and top should
be cleaned, water should be added and recharging
should be
,performed, if required. For dependable
and reliable battery service, the battery should be in
at least a
75 per cent state-of-charge.
(g) Batteries designated as “good” that are suspected
of being questionable because of owner complaint, orage of the battery, should be further tested by the
Hydrometer Test.
HYDROMETER TEST OF BATTERY
The 421 Battery Test as described in the previous
paragraph is the fastest and most accurate means of
determining the serviceability of a one-piece cover
battery. However, ifa 421 Battery Tester is not avail-
able, a hydrometer test may be used on a battery that
has failed to give proper service.
Hydrometer Test1. Fully charge battery.
2. Measure specific gravity of each cell as described
in sub-paragraph below.
Decide battery serviceability as follows:
(a) If all cells read between 1.230 and 1.310, the
battery is okay. All it needed was a full charge.
(b) After fully charging battery, if any cell reads less
than 1.230, the battery is defective and should be
replaced.
Use of HydrometerThe Hydrometer measures the percentage of sulphu-
ric acid in the battery electrolyte in terms of specific
gravity. As a battery drops from a charged to a dis-
charged condition, the acid leaves the solution and
enters the plates, causing a decrease in specific
gravity of electrolyte. With a hydrometer, an indica-
tion of the concentration of the electrolyte is ob-
tained.
The specific gravity of the electrolyte varies not only
with the percentage of acid in the liquid, it also varies
with temperature. As temperature increases, the
electrolyte expands so that the specific gravity is re-
duced. As temperature drops, the electrolyte con-
tracts so that the specific gravity increases. Unless
these variations in specific gravity are taken into
account, the specific gravity obtained by the hy-
drometer may not give a true indication of the con-
centration of acid in the electrolyte.
Correction can be made for temperature by adding
,004, usually referred to as 4 “points of gravity”, to
the hydrometer reading for every 10 degrees F. that
the electrolyte is above 80 degrees F. or subtracting004 for every 10 degrees F. that electrolyte is below
80 degrees F. Figure IA-4 shows the exact correctionfigure to use for any temperature above or below 80
degrees F., the three steps used in obtaining the cor-
rected or true specific gravity, and two examples
showing how it is figured.

1A. 81873 OPEL SERVICE MANUALELECTROLYTESPECIFIC GRAVITY
TEMPERATURE
(F)CORRECTION
-+0&&n _
THERMOMETER 30”
EXAMPLE A:
--,012---,016---,026
- -.02h
- -.028
- -.032~
-.036
YEXAMPLE 6:TEMPERATURE = 120”
i.TEMPERATURE = -0” F.HYDROMETER = ,,230HYDRdiETER
= 1.230
READINGREADING
‘,9R2Ro~CF;‘“” = +.0,6go!RFfCilON = .,032
TRUE SPECIFIC = ,.246
GRAVITY;RU”v;,‘;CIFIC = 1.198
3xA‘l
Figure
l A-4 Specific Gravity Temperature CorrectionScale
When using a hydrometer, obsqve the following
pain Is:1. Hydrometer must be clean, inside and out, to in-
sure an accurate reading.
2. Hydrometer readings must never be taken im-
mediately after water has been added. The water
must be thoroughly mixed with the electrolyte by
charging for at least 30 minutes before hydrometer
values are reliable.
3. If hydrometer has built-in thermometer, draw liq
aid into it several times to insure correct temperature
before taking a reading.
4. Hold hydrometer vertically and draw in just
enough liquid from battery cell so that float is
freefloating, and with bulb fully released. Hold bydrom-eter at eye level so that float is vertical and free
!ofouter tube, then take reading at surface of liquid.
Disregard the curvation where the liquid rises
against float stem due to surface tension.5. Avoid dropping liquid on car or clothing as it is
extremely corrosive. Any liquid that drops should be
washed off immediately with soda solution.
FUSIBLE LINKSAll 1973 Opel Models have fusible links located be-
tween the starting motor post and the generator
regulator. These links are the weakest point in the
electrical supply system for the complete car, and, as
such, will act like a fuse for every wiring harness in
the
ca.r. Every electrical accessory is still protected
by a fuse or circuit breaker, of course, but fusible
links protect the wiring harnesses before the fuses.
A fusible link consists of soldering a smaller gauge
wire to a heavier gauge wire end to end. In the event
of a circuit overload where the heavier gauge
becomes short circuited, the fusible link or smaller
gauge wire will burn out first, thus, protecting its
circuit from major damage. These fusible links are
located in the engine compartment in such a manner
that if overheated, the possibility of a fire is veryr¬e.
The attachment of the fusible links and the circuits
they protect are as follows: See Figure
l A-5.
D+61TERMIN\AL ;;!$6,,FL #3
B+ TERMINAL
I3QlA5
SOLENOID ON STARTER
Figure
t A-5 Fusible LinksFusible link (1) is connected to the starter solenoid
at the battery cable terminal, on one end and to the
red and white stripped main feed wire at the other
end.
Fusible link (2) is connected between the red wirean&s
terminal of the voltage regulateand protectsagainst a situation where the battery will not accept
a charge and the generator is charging to handle
various electrical loads. Fusible link (3) is connected
between the light blue with white stripes wire and D

BATTERY AND CABLES - ALL MODELSlA- 9
plus 61 terminal of the voltage regulator and protects
the circuit to the generator telltale light.
BATTERY RECHARGING
There are two separate methods of recharging batter-
ies which giffer basically in the rate of charge. In the
slow-charge method, the battery is supplied a rela-
tively small amount of current for an extended
period of time. In the quick-charge method, the bat-
tery is supplied with a high current for a short period
of time.
Slow-Charging
Slow charking is the best and only method of com-
pletely ch+rging a battery. The slow-charge method,
properly applied, may be safely used under all possi-
ble conditions of the battery, provided electrolyte is at proper
wl in all cells. The battery may be fully
charged by this method, unless the battery is not
capable of taking a full charge. The normal slow
charging rate for the
12.volt battery is 5 amperes.
Full ch&e of battery is indicated when all cell spe-
cific gravities do not increase when checked at three
intervals
of one hour and all cells are gassing freely.
Due to the low rate during slow charging, plenty of
time must ,be allowed. Charge periods of 24 hours or
more are often required.
Quick-Charging
Since time!is often of most importance to the battery
owner, quick-charging must sometimes be used to
partially charge the battery so that the engine will
start and the owner can be on his way.
Charge at:50 amperes for 20 minutes (50 times 20
equals
100Q ampere minutes). If charger will not give
this rate, charge for an equal number of ampere mi-
nutes at the best rate available. Too high a current
during quick-charging will damage battery plates.
A battery cannot be brought up to a fully charged
condition
by the quick-charge method. The battery
can be substantially recharged or boosted, but in
order to bring the battery to a fully charged condi-
tion, the charging cycle must be finished by charging
at a low
oi normal rate. Some quick-chargers have
a
provisioA for finishing the charging cycle at a low
rate so
tha’t the battery can be brought up to a fully
charged condition.
Used
with:care, and employing all safeguards prov-
ided by the manufacturer, a quick-charger will not
damage a battery
which is in good condition.
BATTERY REMOVAL AND INSTALLATION
Removal
1. Disconnect battery cables (remove negative cable
first to prevent possible shorting).
2. Remove battery hold down
l&acket.
3. Remove battery.
Installation
‘1. Place battery back in hold down position.
2. Tighten hold down bracket bolts.
3. Connect battery cables (connect positive cable first
to prevent possible shorting).
FUSIBLE LINK REMOVAL AND INSTALLATION
Replace a burned out fusible link as follows:
1. Disconnect battery.
2. Disconnect connector eye on end of fusible link.
3. Cut off other end of burned out link, along with
solder joint.
4. Strip insulation from end of new fusible link and
from end of wiring harness so that each will slide into
soldering sleeve.
5. Crimp new link in soldering sleeve and solder
carefully.
6. Cover new connection tightly with electrical tape.
I. Install new link connector eye on other end of
fusible link.
A burned out fusible link connected to the starter
solenoid would be indicated by:
1. All electrical accessories dead.
2. Starter dead - will not even click. Even with a
nearly dead battery, the starter solenoid will
gener-
ally engage; therefore, no click means no solenoid
action, possibly due to a burned out fusible link.
SPECIFICATIONS
BATTERY SPECIFICATIONS
Delco-General 12 volt-44 amp hour storage battery
is installed as original equipment. Replace with a
Delco Energizer
Y55.

1 B- 101973 OPEL SERVICE #MANUAL
STARTlhG SYSTEM
/
ALL
MODEILS
CONTENTS
Subject
DESCRIPTION AND OPERATION:
Starting SystemDescription
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . .
DIAGNOSIS:
Starting System Diagnosis,
. . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . \
. . . . . . . .
MAINTENANCE AND ADJUSTMENTS:Starting System
Checks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . .
MAJOR REPAIR:
Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . ., . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . a.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
CleaningandInspecting Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Replacing Field Coils. . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . .
Checking and Replacing Brushes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing Bushings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . \
. . . . . . . . . . . . . . . . . . . . . .
Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . .
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
SPECIFICATIONS:
Starter Specifications
. . . . , . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page No.
lB-10
16-10
18-12
18-13
18-13
18-14
18-14
16-15
18-16
lB-16
18-17
18-17
DESCRIPTION AND OPERATION
STARTING SYSTEM DESCRlPTlqN
The new Delco Remy starter for 1973 is a brush-
type series wound electric motor equipped with an
overrunning clutch and operated by a
soienoid. The
field frame is enclosed by the commutator end frame
and the drive housing and carries the pole shoes and
the
field coils. The armature has a spline on the drive
end which carries the over-running clutch and pinion
assembly. The armature shaft is supported in
sin-
tered bronze bushings in the commtitator end frame
and the drive end housing. These bushings are
packed with lubricant during initial assembly
and
TROUBLE DIAGNOSIS ’
STARTING SYSTEM DIAGNOSIS/
require no additional lubrication between overhaul
periods.
As the starter is operated by turning the ignition
switch on the instrument panel, the shift lever is
moved against spring tension. By means of the guide
ring, the shift lever moves the pinion into mesh with
the flywheel ring gear.
After the pinion meshes with the flywheel ring gear
teeth, the solenoid contact disc closes the circuit and
the engine is cranked. When the engine starts, the
speed of the rotating flywheel causes the pinion to
over-run the clutch and armature. The pinion con-
tinues to be engaged as long as the shift lever is kept
in the cranking position.
In case of cranking motor breakdown, it should be kept in mind that the
relevant cause(s) for the trouble may not only lie in the cranking mot\
or itself

I
STARTING SYSTEMlB- 11
but also in the condition of related units, such as battery, switches, electrical
wiring and wiring connections.
ConditionPossible Cause
Correction
When ignition switch is1. Battery discharged.1. Charge battery.
on, cranking motor locks
up or
dra’gs.2. Battery defective.1. Test and replace as required.
Battery terminals loose,Retighten terminals, clean battery
corroded or improperlyposts and terminals and coat them
grounded.with acid-proof grease.
3. Cranking motor or brush1. Eliminate grounds.
terminals grounded.
I
4. Cranking motor brushes do
,
1. Check brushes
- clean or replace
not rest on commutator, or
arcas required. Clean guides on brush-
jammed in their guides, wornholders.
out, oily or clogged.
5. Ignition switch damaged1. Replace ignition switch.
(loose parts preventing switch
I
from closing or burnt parts).
6. Solenoid switch damaged.
1. Repair or replace as required.
7. Excessive voltage drop in1. Check wiring and connections.
wiring switches damaged,Repair or replace switches.
connections loose.
The armature revolves but
1. Drive pinion clogged.1. Clean drive pinion.
the drive binion does not
come into; mesh.
2. Drive pinion or ring gear1. Replace ring gear and
,
teeth flattened or burred.overrunning clutch.
I
3. Poor condition of shaft1. Replace armature and overrunningsplines.clutch.
4. Voltage drop.1. Replace shift lever.
When ignjtion switch is
1. Battery discharged.1. Charge battery.
on, armature revolves
until drive pinion engages
and then
Btops.2. Brush spring tension too1. Check brushes - clean or replace
weak.as required.
3. Cranking motor solenoid or
1. Replace or repair solenoid or
switch defective.
switch.