1987 MAZDA 626 battery

OUTLINE 5
SPECIFICATIONS
Gasoline Engine
item
Engine
F6 F8 FE
(8 VALVE)
FE (12 VALVE) FE
(DOHC)
Battery
Voltage
Type and capacity
12. Negative ground
(20 hour rate) 34B19L(S) (33 Ah): General 50D20L (50 Ah), 55D23L (60 Ah): ECE
Alternator
Type A.C.
Output V-A 12-70
Regulator type Transistorized (built-in IC regulator)
Regulated voltage 14.1-14.7
Brush length
mm (in) Standard 16.5 (0.650)
Minimum 8.0 (0.315)
Drive belt tension
mm (in)/98 N (10 kg, 22 lb) New: 6-8 (0.24-0.32), Used: 7-9 (0.28-0.35)
Starter
Type Coaxial reduction: Middle East & General (FE • carburetor)
Non-reduction: Others
Output V-kW 12-0.85
Brush length
mm (in)
12-0.95
Standard 17.0 (0.669)
Minimum 11.5 (0.453)

Unleaded fuel
17.0 (0.669)
Others
17.51
Unleaded fuel 11.5(0.453) Others 10,0 (0.394)

12-1.4 12-0.95
17.0 (0.669)
11.5 (0.453)
Ignition timing 6 ± 10 BTDC (Vacuum hose disconnected)

12
±
1° BTDC
(Test connector

grounded)
Distributor
Type Fully transistorized (HEI)
Electronic spark advance
Centrifugal spark advance
(crank angle/engine speed)
degree/rpm
F6
-2-2/1,000 6-10/2,100 14-18/6,100
F8 -2—2/1,000 10-14/2,100 18-22/6,100
FE (8 VALVE)—Carburetor Unleaded fuel
(MTX)-2—2/1,760 12—16/3,360 22—26/5,320 (ATX)-2-2/1,300 12-16/3,360 22-26/5,320
Others
-2—2/1,460 10—14/2,540 22—26/5,540
FE (12 VALVE)—Carburetor -2-2/1,200 10—14/2,400 10—14/4,000 16-20/5,000
FE—Fuel injection (except FE DOHC) -2—2/1,000 10—14/2,600 10—14/4,600 16—20/5,800
Unleaded fuel model 76G05X-503
5-5

5 OUTLINE
Item
Engine F6 F8 FE
(8 VALVE)
FE (12 VALVE) FE (DOHC)
F6 and F8
-2-2/100 6-10/300
FE (8 VALVE)—Carbu retor Unleaded fuel -2—2/120 8—12/245
Distributor
Vacuum spark advance (Crank angle/Vacuum)
Others (MTX) -2-(ATX) -2--2/100 16-
-2/100 10-
-20/250
-14/200
degree/mmHg (inHg) FE (12 VALVE)—Carburetor
-2-2/120 11-15/300
FE—Fuel injection (except FE DOHC) [A chamber] -2-2/125 18-22/300
[B chamber] -2-2/125 -6 10/200
Spark plug
Type
FE (8 VALVE)*1 NGK: BPR5ES-11, BPR6ES-11 Nippon Denso: W16EXR-U11, W20EXR-U11 Others
NGK: BPR5ES, BPR6ES Nippon Denso: W16EXR-U, W20EXR-U
NGK:
BCPR5E, BCPR6E Nippon
Denso: Q16PR-U, Q20PR-U
Unleaded fuel
NGK: BCPR5E-11 BCPR6E-11 BCPR7E-11
Leaded fuel NGK: BCPR5E BCPR6E
Plug gap mm (in)
0.75-0.85 (0.030-0.033), FE (8 VALVE)*1 1.0-1.1 (0.039-0.043)
0.7-0.8
(0.028-0.031)
1.0-1.1 "
/n noo
n n/9
0.7-0.8 *2 (0.028-0.031)
Firing order 1-3—4-2 76G05X-504
Diesel Engine
——Engine Item RF-N RF-CX
Battery
Voltage V 12, Negative ground Battery Type and capacity
(20 hour rate) 80D26L (65)
50D20L, 50D20R (50)-ECE 80D26L (65)
65D23L, 65D23R (55)
Alternator
Type A.C.
Alternator
Output V-A 12-70 12-75
Alternator
Regulator type Transistorized (built-in IC regulator)
Alternator Regulated voltage V 14.1-14.7 Alternator
Brush length mm (in)
Standard 16.5 (0.650) 21.5 (0.846)
Alternator
Brush length mm (in) Minimum 8.0 (0.315) 8.0 fO.315)
Alternator
Drive belt tension
mm (in)/98 N (10 kg. 92 lb) New: 9-11 (0.35-0.43), Used: 12-14 (0.47-0.55)
Starter
Type Reduction
Starter Output V—kW 12—2.0, 12-2.2 (Cold area) Starter Brush length
mm (in)
Standard 2.0 kW: 17.0 (0.669). 2.2 kW: 18.0 (0.709) Starter Brush length
mm (in) Minimum 2.0 kW: 11.0 (0.453), 2.2 kW: 11.0 (0.453)
Firing order 1-3-4-2
Unleaded fuel model *2 Leaded fuel model
76G05X-505
5-6

TROUBLESHOOTING GUIDE 5
TROUBLESHOOTING GUIDE
Problem Possible cause Remedy Page
Starter does not turn at all, or Its turning speed Is too slow to start the engine.
Battery and related parts Poor contact of battery terminals Poor grounding of negative cable Voltage drop caused by discharged battery Insufficient voltage caused by battery malfunction
Clean and tighten Clean and repair Recharge Replace
5- 8
5- 8 5- 8
Ignition switch and related parts Poor contact of ignition switch Loose ignition switch wiring or connector Broken wire between ignition switch and magnetic switch
Replace Repair Repair or replace 5-38,45,56,66
Magnetic switch and related parts Loose wiring and/or connectors Burnt magnetic switch contact plate or improper contact Broken wire in magnetic switch pull-in coil Broken wire magnetic switch holding coil
Repair Replace
Replace Replace
5-38,45,56,66 5-43,54,64,74
5-43,54,64,74 5-43,54.64,74
Starter Poor contact of brushes
Fatigued brush spring Poor grounding of field coil Poor soldering of field coil Commutator mulfunction Grounded armature Worn parts
Adjust contact or replace Replace Replace Repair Repair or Replace Replace Replace
5-43,54,64,74
Starting problem Gasoline engine Insufficient battery capacity Malfunction of spark plug (s)
Loose positive terminal Damaged distributor cap or rotor Ignition coil malfunction laniter malfunction
Recharge Clean, adjust or replace Tighten Replace Replace Renlane
5— 8 5— 9
5—16 5—10 5-16,20
Diesel engine Insufficient battery capacity QSS svstem malfunction Recharge ReDlace 5— 8 5-76
Starter turns but pinion gear does not mesh with ring gear
Starter Tip of overrunning clutch pinion is worn Weakened overrunning clutch drive spring Worn overrunning clutch Improper sliding of spline
Worn bushing Worn ring gear
Replace Replace Replace Adjust contact and repair, or replace Replace ReDlace
5-40,54,70
Starter turns continuously (does not stop) Magnetic switch Sticking contact place of magnetic switch Layer shorting coil of magnetic switch Ignition switch does not return
Replace Replace Rfinlanfi
5-43,54,64,74 5-43,54,64,74
Misfiring Dirty or damaged spark plug (s) Malfunction of wiring, or open circuit Damaged distributor cap
Clean or replace Repair or Replace Replace
5- 9 5—10 5—16
Discharging of battery Alternator Loose drive belt Grounded or broken stator coil Broken rotor coil Poor contact of brush and slip ring
Malfunction of rectifier Malfunction of IC regulator Battery and related parts Insufficient or unsuitable battery electrolyte Malfunction of battery electrode (internal short-circuit) Poor contact of battery terminal (s) Excessive electric load
Adjust Replace Replace Clean, repair or replace Replace Replace
Adjust Replace
Clean and tighten Check power consump-tion and short circuit
5-37 5-32 5-32 5-32
5-34
5— 8 5- 8
5— 8
Overcharging of battery IC regulator malfunction Operating in extremely high temperature Replace Reoair
Poor acceleration Mis-adjusted ignition timing Distributor malfunction Adjust Repair or replace 5—11 5—11
Knocking Mis-adjusted ignition timing | Distributor malfunction Adjust Repair or replace 5—11 5—11
76G05X-003
5-7

5 BATTERY
BATTERY
INSPECTION
Terminal and Cable
1. Check the tightness of the terminals to ensure good
electrical connections. Clean the terminals and coat
them with grease after tightening the terminal.
2. Inspect for corroded or frayed battery cables.
3. Check the rubber protector on the positive termi-
nal for proper coverage.
4BG05X-006
Electrolyte Level
1. Check whether or not the electrolyte level lies be-
tween the "UPPER LEVEL" and the "LOWER
LEVEL" lines.
2. If low, add distilled water by the "UPPER LEVEL".
Do not overfill.
4BG05X-007
Specific Gravity
1. Measure the specific gravity by using a
hydrometer.
2. If the specific gravity reading is standard or less,
recharge the battery.
Standard gravity: 1.22
Fully charged gravity: 1.27—1.29
76G05X-004
RECHARGE
Quick Charge
1. Remove the battery from the vehicle.
2. Remove all the vent caps.
3. Perform a quick charge (6A or above, but max.
20 A).
4. Add distilled water if necessary while charging.
5. Cool the battery not to exceed the electrolyte tem-
perature over 55°C (131 °F) while charging.
6. Charge once more if the specific gravity is under
fully charged gravity.
4BG05X-009
5-8

SPARK PLUG 5
Slow Charge
1. Stop the engine
2. Turn all the accessories off.
3. Remove the negative battery cable.
4. Perform a slow charge (3.5A to 4.5A).
5. Add distilled water if necessary while charging.
6. Charge once more if the specific gravity is under
fully charged gravity.
4BG05X-010
SPARK PLUG
REMOVAL AND INSTALLATION
Note the following points:
1. When the high-tension lead is to be pulled off, be
sure to pull the boot itself, and not the wire.
2. Tighten the spark plugs to the specified torque.
Tightening torque: 15—23 N-m
(1.5—2.3 m-kg, 10.8—16.6 ft-lb)
76G05X-054
Wear and adhesion or cabon
INSPECTION
Check the following points. If a problem is found, re-
place the spark plug.
1. Damaged insulation
2. Worn electrodes
3. Carbon deposits
If cleaning is necessary, use a plug cleaner or a
wire brush. Clean the upper insulator also.
4. Damaged gasket
5. Burnt condition of spark insulator
6. If it is black with carbon deposits, either misfiring
due to improper proportions of gas and air or over-
heating of the plug may have occurred.
Plug gap:
FE (12VALVE) and FE DOHC Leaded fuel
model:
0.70—0.80 mm (0.028—0.031 in)
FE (8VALVE) and FE DOHC Unleaded fuel
model:
1.0—1.10 mm (0.039—0.043 in)
Others:
0.75—0.85 mm (0.030—0.034 in)
76G05X-005
5-9

5 IGNITER
(FE
DOHC)
76G05X-018
IGNITER
INSPECTION
1. Disconnect the center high tension lead from the
distributor cap.
2. Hold it with insulated pliers approx. 5—10 mm
(0.20—0.39 in) from a ground.
3. Turn th ignition switch ON.
4. Remove the rubber seal from the igniter connector.
5. Apply battery voltage to terminal A (LR) with a jum-
per wire.
6. Check that a strong blue spark is visible when the
wire is disconnected.
76G05X-019
If no spark is seen, connect a voltmeter between
terminal B (B) and terminal C (YL), and check for
battery voltage.
76G-05X-020
8. Repeat steps 5 and check
that
the voltage changes
to 2—3V.
9.
If
the voltage is not as specified, replace the igniter.
10.
If
the voltage is as specified, check the ignition coil
and high tension lead.
76G05X-021
5-20

5 ALTERNATOR
CHARGING SYSTEM
76G05X-023
86U05X-008
Caution
a) Be sure the battery connections are not
reversed, because this will damage the rec-
tifier.
b) Do not use high-voltage testers such as a
megger, because they will damage the rec-
tifier.
c) Remember that battery voltage is always
applied to the alternator B terminal.
d) Do not ground the L terminal while the en-
gine is running.
e) Do not start the engine while the connec-
tor is disconnected from the L and S ter-
minals.
5—22

5 ALTERNATOR
3. Alternator warning light operates properly, but battery discharged
OK
NG OK
1
a) Poor connection between B terminal and positive battery cable
b) Poor connection of negative battery cable c) Poor connection between alternator connector (2-pin) and positive battery terminal d) Stator coil or diodes malfunction (Refer to page 5—32 or 5—34.)
Perform TEST 2. (Refer to page 5--25.)
NG
Perform TEST 3. (Refer to Dage 5--26.)
I OK
Perfrom TEST 4. (Refer to page 5--26.)
NG
Perform TEST 5 (F Refer to page 5—26)
OK
Alternator normal.
Check other electrical components.
NG
Alternator normal.
Check other electrical components.
Perform TEST 5. (Refer to page 5—26.)
OK
Stator coil, diode, main fuse, or wiring har-ness between B ternimal and battery mal-function.
(Refer to page 5—32 or 5—34.)
IC regulator, bush, or rotor coil malfunction. (Refer to page 5—32 or 5—33)
NG
76G05X-027
4. Battery overcharged
Less than 14.1V
(At 20°C, 68°F)
More than 14.7V
(At 20oC,68°F)
IC regulator malfunction,
Perform TES T 6. (Refer to page 5—27.)
NG OK
Wiring harness malfunction.
76G05X-028
5—24