MAZDA PROTEGE 1992 Workshop Manual

CHARGING SYSTEM G
Disassembly / Assembly
1. Disassemble in the order shown in the figure.
2. Inspect all parts and repair or replace as necessary.
3. Assemble in the reverse order of disassembly.
P-105 N.m (9.5-11 m-kg, 61-79 ft.lb)
N-m (cm-kg, in-l
OBUOGX-0
1. Pulley 6. Rectifier
2. Front cover Inspection .,,,..,,,,.....,,.,.,,............. page G-13
3. Rotor 7. Brush holder assembly
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page G-12 Inspection
4. Rear bracket (Brush and brush spring) . . . . . . . . . page G-13
5. Stator 8. Bearing
Inspection . . . . . . . . . . . . . . . . . . . . . . . . page G-l 2 Inspection .,.,,...,......,......,............ page G-13
G-l 1

G CHARGING SYSTEM
23UOGX-OO!
23UOGX-00
03UOGX-02,
03UOGX-02
Inspection
Rotor
1. Measure the resistance between the slip rings with an
ohmmeter.
Specification: 3.5-4.5Q [at 20°C (66OF)]
2. If not within specification, replace the rotor.
3. (1) Check continuity between each slip ring and the core
with an ohmmeter.
(2) Replace the rotor if there is continuity.
4. Check if the slip ring surface is rough. Use fine sandpaper
to repair it if necessary.
Stator
1. Check for continuity between the stator coil leads with an
ohmmeter.
2. Replace the stator it there is no continuity.
3. Check continuity between the stator coil leads and the core
with an ohmmeter.
4. Replace the stator if there is continuity.
G-12

CHARGING SYSTEM G
L
23UOGX.00
P2 I9
WEAR LIMIT
03UOGX-021
03UOGX-02C
03UOGXz
Rectifier
1. Check continuity of the diodes with an ohmmeter.
Negative
E
B
T
Pl, P2,
P3
Pl, P2, P3
Positive
PI,
P2, P3
E
B
T
Continuity
Yes
No
No
No
Yes
Yes
2. Replace the rectifier if necessary.
Brush
If a brush is worn almost to or beyond the limit, replace the
brushes.
Standard: 21Smm (0.848 in)
Minimum: 8.0mm (0.315 in)
Brush spring
1. Measure the force of the brush spring with a spring pres-
sure gauge.
2. Replace the spring if necessary.
Standard force:
3.1-4.3 N (320-440 g, 11.3-15.5 oz)
Minimum: 1.6-2.4 N (160-240 g, 5.6-8.5 oz)
Note
l Read the spring pressure with the brush tip project-
ing 2mm (0.079 in).
Bearing
1. Check for abnormal noise, looseness, or sticking
2. Replace the bearing(s) if necessary.
G-l 3

G CHARGING SYSTEM
WATER PUMP 13UOGX-00,
03UOGX-03:
I /I I III
I f 03UOGX-03:
03UOGX-034
DRIVE BELT
Inspection
1. Check the drive belt and pulley for wear, cracks, and fray-
ing. Replace if necessary.
2. Measure the drive belt tension with a tension gauge. .-A
Tension N (kg, lb)
Drive belt
Alternator
A/C and P/S New Used
383-461
304-303
(39-47, 85.8-103.4) (31-39, 68.2-85.8)
491-589 422-491
(50-60, 11 O-l 32) (43-50, 95-110)
3. Measure the deflection by applying moderate pressure (98
N, 10
kg, 22 lb) midway between the pulleys. Adjust if
necessary.
Deflection mm (in)
Drive belt
Alternator
AIC and P/S New Used
8-9 9-10
(0.31-0.35) (0.35-0.39)
8-9 9-10
(0.31-0.35) (0.35-0.39)
Adjustment
1. Loosen the alternator mounting bolt and adjusting bolt.
2. Move the alternator to set the specified deflection.
3. Tighten all bolts and recheck the tension.
Replacement
1. Remove the A/C and P/S drive belt, if equipped.
Note
l Refer to pages 61-5 and 82-5.
2. Loosen the alternator mounting bolt and adjusting bolt.
3. Remove the alternator belt.
4. Install the new alternator belt and adjust it to specification.
5. Tighten all bolts to the specified torque.
Tightening torque
Alternator bolt:
37-52 N#rn (3.8-5.3 m-kg, 27-38 ft-lb)
Adjusting bolt:
19-25 N-m (1.9-2.6 m-kg, 14-19 ft-lb)
6. Install the A/C and P/S drive belt if equipped, and adjust
to specification.
Note
l Refer to pages 61-5 and 82-5.
G-14

IGNITION SYSTEM G
IGNITION SYSTEM
PREPARATION
SST
49 NO18 001
Adapter Harness
CIRCUIT DIAGRAM
ECU
T
IGNITION SWITCH
,
I
DISTRIBUTOR
7
1 ZL BATTERY
IGNITER
03UOGX-03t
G-15

G IGNITION SYSTEM
TROUBLESHOOTING
iTEP
INSPECTION
ACTION
1
Check if MIL illuminates when engine is running Yes Check for malfunction code number
and perform troubleshooting (TEN ter-
minal grounded) c7 Section F
No Go to next step
2 Drsconnect high-tension lead from distributor and
Yes
check for strong blue spark while cranking en-
l Check distributor cap and rotor v page G-22
gine * Check high-tension lead
KP page G-19 c7 page G-17
+ Ignition system normal
No
Go to next step
3 Check if resistance of ignition coil is OK
Yes
Go to next step ~7
page G-19
Specification (at 20°C [66”9):
Primary coil winding: 0.81-0.99Q No
Replace ignition coil
Secondary coil winding: IO-16 kQ
-i
Check if resistance of high-tension leads is OK Yes Go to next step
D= page G-17
Specification: 16 kQ per 1 m (3.28 ft)
No Replace high-tension lead
5 Check if igniter is OK
m- page G-23 Yes
Replace ECU
No
Replace igniter
03UOGX-03
G-16

IGNITION SYSTEM G
r
03UOGX-03
SOHC
LOCK BOLTS
DOHC
A LOCK BOLTS I 03UOGX-0’
03UOGX-C
IGNITION TIMING
Adjustment
1. Warm UD the enaine to normal operating temperature.
2. Turn all ‘electricarloads OFF.
3. Turn the A/C switch OFF.
4. Connect the
SST.
5. Set switch A on the System Selector to position
SWITCH to SELF-TEST. 1 and TEST
Note
l To create the test condition without using the Sys-
tem Selector, connect terminals TEN and GND of
the diagnosis connector with a jumper wlre.
6. Check the ignition timing.
Specification
Engine
Ignition timing
BTDC B6 SOHC BP SOHC
60-8O 4O-6O
BP DOHC
9°-110
7. If the ignition timing is not as specified, loosen the distribu-
tor lock bolts and turn the distributor to make the adjustment.
8. Tighten the distributor lock bolts to the specified torque.
Tightening torque:
19-25 N-m (1.9-2.6 m-kg, 14-19 ft-lb)
HIGH-TENSION LEAD
Inspection
1. Measure resistance of the high-tension leads.
Specification: 16 kg per 1 m (3.26 ft)
G-l 7

G IGNITION SYSTEM
-.-.. .----___ 03UOGX-042
03UOGX-04
--.---- J
03UOGX-044
WEAR AND CARBON
/
c- -BURNT
PLUG GAP
L--
c
DAMAGE AND
,llllll....*llll,lllf DETERIORATIOF
; -,DAMAGE
03UOGX.04
G-18
SPARKPLUGS
Removal / Installation
1. Remove and install the high-tension leads carefully.
Caution
l When the spark plug lead is to be pulled off, be sure
to pull the boot itself, not the wire.
Y’
2. Remove and install the spark plug with a plug socket.
Caution
l Be sure the socket is fit squarely over the spark
plug.
3. Apply anti-seize compound or molybdenum-based lubricant
to the spark plug threads.
4. Tighten the spark plug to the specified torque.
Spark plug Tightening torque:
15-23 N.m (1 S-2.3 m-kg, 11-17 f&lb)
Inspection
1. Remove the spark plug.
2. Connect the spark plug to a high-tension lead.
3. Hold the spark plug with insulated pliers
5-10mm
(0.20-0.39 in) from a ground.
4. Crank the engine and verify that there is a strong blue spark.
4
Note
l If there Is no spark, replace the spark plug.
5. Check the following points. If a problem is found, replace
the spark plug.
l Damaged insulation.
l Worn electrodes.
l Carbon deposits.
If cleaning is necessary, use a plug cleaner or a wire
brush. Clean the upper insulator also.
l Damaged gasket.
l Burnt condition.
Plug gap: 1.0-l .l mm (0.039-0.043 in)

IGNITION SYSTEM . . . ._,
03UOGX-04
Lszl /
P
0 V
- 23UOGX-OC
03UOGX-048
03UOGX-04
03UOGX-0%
IGNITION COIL
Inspection
Spark test
1. Disconnect the high-tension lead from the distributor.
2. Hold it with insulated pliers 5-l
Omm (0.20-0.39 in) from
a ground.
3. Crank the engine and verify that a strong blue spark is
visible.
4. If there is no spark, disconnect the connector from the igni-
tion coil and check for voltage at the positive (+) terminal
of the connector with the ignition switch in the ON position.
Specification: Battery voltage
5. If there is no voltage, check the main fuse, ignition switch,
and wire harness.
Primary coil winding
1. Use an ohmmeter and measure resistance of the primary
coil winding. If not within specification, replace the coil.
Prlmary coil resistance: 0.81-0.99112 (at 2O*C [88*F])
Secondary coil winding
1. Use an ohmmeter and measure resistance of the secon-
dary coil winding. If not within specification replace the coil.
Secondary coil resistance: lo-18 kQ (at 20°C [68*F])
Insulation of case
1. Use a 500V megger tester to measure the insulation resis-
tance between each terminal and the case.
Speclficatlon: 10 MS1 min.
G-19

G IGNITION SYSTEM
I
03UOGX~051
03UOGX-052
DISTRIBUTOR
Spark Test
1. Disconnect the high-tension lead from each spark plug.
2. Hold each insulator with pliers
5-10mm (0.20-0.39 in)
from a ground.
3. Crank the engine and verify that a strong blue spark is
visible.
Electronic Advance Inspection
1. Verify that the ignition timing advances with engine ac-
celeration.
G-20 ._... -~
._ _