1987 MAZDA 626 timing

TECHNICAL DATA 30
Item Engine model RF-CX RF-N
Connecting rod and connecting rod bearing

Length (Center
to
center) mm (in) 151.95-152.05 (5.9823—5.9862)
Maximum twisting and bending mm (in) 0.080 (0.0031)
per 50
(1.969)
Small end bushing inner diameter mm (in) 30.014-30.030 (1.1817-1.1823) 25.014-25.030 (0.9848-0.9854)
Big end bore mm (in) 54.002-54.017 (2.1261-2.1266)
Big end width mm (in) 25.900—26.100 (1.0197—1.0276)
Connecting rod side clearance mm (in) Standard 0.11-0.262 (0.0043-0.0103) Connecting rod side clearance mm (in) Maximum 0.30 (0.012)

Crankshaft

Crankshaft runout mm (in) 0.05 (0.002) max.
Standard Standard 59.937-59.955 (2.3597-2.3604)
size Minimum 59.89 (2.358)
0.25 (0.010) Standard 59.687-59.705 (2.3499-2.3506)
Main journal diameter undersize Minimum 59.64 (2.348) mm (in) 0.50 (0.020) Standard 59.437-59.455 (2.3400-2.3407)
undersize Minimum 59.39 (2.338)
0.75 (0.030) Standard 59.187-59.205 (2.3302-2.3309)
undersize Minimum 59.14 (2.328)
Main journal taper and out-of-round mm (in) 0.05 (0.002) max.
Standard Standard 50.940-50.955 (2.0055—2.0061)
size Minimum 50.89 (2.004)
0.25 (0.010) Standard 50.690-50.705 (1.9957-1.9963)
Crankpin diameter undersize Minimum 50.64 (1.994) mm (in) 0.50 (0.020) Standard 50.440-50.455 (1.9858—1.9864)
undersize Minimum 50.39 (1.984)
0.75 (0.030) Standard 50.190-50.205 (1.9760-1.9766)
undersize Minimum 50.14 (1.974)
Crankpin taper and out-of-round mm (in) 0.05 (0.002) max.

Main bearing

Main journal bearing
oil
clearance Standard 0.031-0.050 (0.0012-0.0020)
mm (in) Maximum 0.08 (0.0031)
Available undersize bearina mm fin) 0.25 (0.010), 0.50 (0.020), 0.75 (0.030)

Crankpin bearing

Crankpin bearing
oil
clearance mm (in) Standard 0.027-0.055 (0.0011-0.0022) Crankpin bearing
oil
clearance mm (in) Maximum 0.08 (0.0031)
Available undersize bearing mm (in) 0.25 (0.010), 0.50 (0.020), 0.75 (0.030)

Thrust bearina (center main bearina)

Crankshaft end play mm (in) Standard 0.04-0.282 (0.0016—0.0111) Crankshaft end play mm (in) Maximum 0.30 (0.012)
Bearing width mm (in) Standard size 2.00-2.05 (0.0787-0.0807) Bearing width mm (in) Oversize 2.175-2.225 (0.0856-0.0876)

Timing belt

Deflection mm (in)/N (ka,
lb)
9.0-11.5 (0.35--0.45V98 (10,
22)
Drive belt deflection

Alternator mm (in) New 8-10 (0.31-0.39) Alternator mm (in) Used 9-11 (0.35-0.43)
A/C compressor mm (in) New 8.5-9.5 (0.33-0.37) A/C compressor mm (in) Used 9.5-10.5 (0.37-0.41)
Vacuum pump mm (in) New 7.5-8.5 (0.30—0.33) Vacuum pump mm (in) Used 8.5-9.5 (0.33-0.37)
P/S pump with vacuum pump mm (in) New 6.5-7.5 (0.26—0.30) P/S pump with vacuum pump mm (in) Used 7.0-8.0 (0.28—0.31)
Pressure wave supercharger
mm
(in) New 4.0-5.0 (0.16-0.20) Pressure wave supercharger
mm
(in) Used 4.5-5.5 (0.18-0.22)

30—13

30 TECHNICAL DATA
3A. COOLING SYSTEM (GASOLINE)
Engine model F6, F8, FE SOHC
Item FE DOHC ECE, Hong Kong
Singapore Middle East General

Cooling method Water-cooled, forced circulation

Water pump

Type Centrifugal, timing belt driven
Impeller diameter mm (in) 70 (2.76)
Number
of
impeller blades 6
Speed ratio 1
:
1.00 1
:
1.05
Water seal type Unified mechanical seal

Thermostat

Type Wax, 2-stage Wax
Start
to
open °C (°F) Sub: 83.5-86.5 (182-188) Main: 86.5-89.5 (188-193) 86.5-89.5 (188-193) 80.5-83.5 (177-182)
Full open °C (°F) 100 (212) 95 (203)
Lift mm (in) Sub: 1.5 (0.06) min.
Main: 8.0 (0.31) min. 8.5 (0.33) min.

Radiator

Type Corrugated
fin

Cap opening valve pressure kPa (kg/cm2,
psi)
74-103 (0.75-1.05,
11
-15)
Cooling system pressure kPa (kg/cm2,
psi)
103 (1.05,
15)
Cooling fan

Type Electric
Capacity W MTX 80 Capacity W ATX 120
Current A MTX 5
6 7.6
Current A ATX
—
8.0-11.0
Number
of
blades 4
Outer diameter mm (in) MTX 320 (12.6) Outer diameter mm (in) ATX 340 (13.4)
Switching temperature OFF -
ON
°C(°F) 97 (207) 91 (196)

Coolant

Capacity liters (US qt, Imp
qt)
With heater 7.5 (7.9, 6.6) Capacity liters (US qt, Imp
qt)
Without heater 7.0 (7.4, 6.2)
Protection Mixture percentage (volume)
%
Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution
Protection Water Solution
Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution Above -16°C (3°F) 65 35 1.054
Above -26°C (-15°F) 55 45 1.066
Above -40 °C (—40°F) 45 55 1.078

30-16

TECHNICAL DATA 30
3B. COOLING SYSTEM (DIESEL)
Item Engine model RF-CX, RF-N

Cooling method Water-cooled, forced circulation

Water pump

Type Centrifugal, timing belt driven
Water seal type Unified mechanical seal

Thermostat

Type Wax, two stage
Start
to
open °C (°F) Main valve:
86.5-89.5 (188-193)
78.5-
Sub valve: 81.5 (173-179)
Full open lift mm (in)/°C (°F) Main valve: 8.0 (0.31) Sub valve: 1.5 (0.06) min./100 (212) min./100 (212)

Radiator

Type Corrugated
fin

Cap opening valve pressure kPa (kg/cm2,
psi)
74—103 (0.75—1.05,
11
-15)
Cooling circuit checking pressure kPa (kg/cm2,
psi)
103 (1.05,
15)
Cooling fan

Type Electric
Number
of
blade 4
Outer diameter mm (in) 340 (13.4)
Switching temperature OFF -»
ON
°C (°F) 91 (196)
Voltage V 12
Capacity W-A 120-8.0-11.0

Coolant

Capacity liters (US qt, Imp
qt)
With heater 9.5 (10.0, 8.4) Capacity liters (US qt, Imp
qt)
Without heater 9.0 (9.5, 7.9)
Protection Mixture percentage (Volume) Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution
Protection Water Solution
Specific gravity
of
mixture
at
20°C (68 °F) Antifreeze solution Above -16°C (3°F) 65 35 1.054
Above -26°C (-15°F) 55 45 1.066
Above -40°C (-40°F) 45 55 1.078

30-17

30 TECHNICAL DATA
4D. FUEL AND EMISSION CONTROL SYSTEM (DIESEL)
Item — Engine model RF-CX RF-N

Idle speed rpm 720 -20
Type VE Type
Fuel injection pump
Plunger diameter mm (in) 9.0 (0.35) 8.0 (0.31) Fuel injection pump
Cam height mm (in) 2.2 (0.08) Fuel injection pump Governor Half
all
speed governor
Fuel injection pump Injection timing ATDC 1
°
TDC
0°

Cam lift
at
injection timing mm (in) 1 (0.04)
Injection
nozzle
Type Throttle Injection
nozzle Number
of
nozzle and diameter
mm (in)
1.0 (0.04)
x 1
Injection
nozzle Injection pressure kPa (kg/cm2,
psi)
13,240 (135, 1,920)
Free play
of
cable
at
injection pump mm (in) 1.0-3.0 (0.04-0.12)
Fuel tank capacity liters (Us gal, Imp gal) 60 (15.9, 13.2)
Fuel filter type Cartridge, paper element
Air cleaner element type Cartridge, paper element
Fast idle speed (A/C ON) rpm 700--750
Cold Engine speed rpm 1,100
at
below 0°C (32°F)
start Advance degree 0°C (32°F) 6 0
device Advance degree 60°C (140°F) 0
°
30—; 22

TECHNICAL DATA 30
5. ENGINE ELECTRICAL SYSTEM
Gasoline Engine
——— Engine
F6 F8 FE FE FE
Item ____ F6 F8 (8 VALVE) (12 VALVE) (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

17.5 (0.689)

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
±
1
°
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

30—23

TECHNICAL DATA 30
Control valve spring (G4A-EL)
Spring name Outer dia. mm (in) Free length mm (in) Wire dia. mm (in) Spring color

1-2 accumulator small spring 11.0 (0.433) 88.1 (3.348) 1.4 (0.055) Gray
1-2 accumulator large spring 16.0 (0.0630) 78.0 (3.071) 2.0 (0.079) Blue
Bypass, servo control spring 5.0 (0.197) 33.4 (1.315) 0.55 (0.022) Maroon
2-3 timing spring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

N-R accumulator rear spring 11.1 (0.437) 62.0 (2.441) 1.2 (0.047) Light green
N-D accumulator front spring 9.8 (0.386) 52.9 (2.083) 1.0 (0.039) Brown
Coasting bypass spring 5.8 (0.228) 37.7 (1.484) 0.6 (0.024) Dark blue
3-2 timing spring 8.2 (0.323) 28.6 (0.126) 0.8 (0.031) Red
3-2 capacity spring 5.4 (0.213) 30.6 (1.205) 0.5 (0.020) White
Throttle relief ball spring 6.6 (0.260) 21.6 (0.850) 0.8 (0.031)
—

Pressure modifier spring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

Low reducing spring 8.7 (0.343) 38.3 (1.508) 0.9 (0.035) Black
1-2 shift spring 8.7 (0.343) 41.3 (1.626) 1.0 (0.039) Yellow
2-3, 3-4 shift spring 7.4 (0.291) 36.6 (1.441) 0.8 (0.031) Gray
Throttle backup spring 9.65 (0.380) 26.9 (1.059) 0.55 (0.022) Red
Throttle modulator spring 6.3 (0.248) 47.9 (1.886) 0.8 (0.031)
—

Throttle assist spring 5.15 (0.203) 32.3 (1.272) 0.55 (0.022) Dark green
Throttle spring 5.4 (0.213) 47.2 (1.858) 0.8 (0.031) Pink
Converter relief ball spring 6.9 (0.272) 24.1 (0.949) 0.9 (0.035) Maroon
Orifice check valve spring 5.0 (0.197) 12.5 (0.492) 0.23 (0.009)
—

Pressure regulator spring 11.5 (0.453) 26.5 (1.043) 1.0 (0.039) Maroon
Lock-up control spring 5.0 (0.197) 35.2 (1.386) 0.6 (0.024) Purple

Control valve springs (G4A-HL)
SDrina name Outer dia. mm (in) Free length mm (in) Wire dia. mm (in) Spring color

1-2 accumulator small spring F8 enaine 9.9 (0.400) 84.7 (3.335) 1.2 (0.047) Red
1-2 accumulator large spring FE engine 13.0 (0.512) 73.2 (2.881) 1.8 (0 071) Pink 1-2 accumulator large spring F8 enaine 16.0 (0.630) 84.7 (3.335) 2.0 (0.079) White
Bypass spring 5.0 (0.197) 25.1 (0.988) 0.7 (0.028) Yellow
Servo control sorina 4.9 (0.193) 27.1 (1.067) 0.5 (0.020) Light blue
2-3 timing soring 8.3 (0.327) 26.5 (1.043) 0.8 (0.031)
—

N-R
accumulator rear SDrina
11.1 (0.437) 68.2 (2.685) 1.0 (0.039) Blue
N-D accumulator front spring 9.8 (0.386) 60.9 (2.398) 1.1 (0.043) Yellow
Low reducing spring 8.7 (0.343) 38.3 (1.508) 0.9 (0.035) Black
OD release spring 6.0 (0.236) 32.6 (1.283) 0.6 (0.024) Orange
Coasting bypass spring 5.8 (0.228) 31.3 (1.232) 0.6 (0.024) Yellow
3-2 timing soring 8.2 (0.323) 28.55 (1.124) 0.8 (0.031) Maroon
3-2 capacity spring 5.55 (0.219) 30.5 (1.201) 0.55 (0.022) Light green
Throttle relief ball soring 6.6 (0.260) 20.3 (0.799) 0.8 (0.031) Light green
1-2 shift control spring 5.5 (0.217) 46.0 (1.811) 0.5 (0.020) Liaht oreen
1-2 shift soring 5.0 (0.197) 24.9 (0.980) 0.5 (0.020) Gray
2-3 shift soring 6.1 (0.240) 39.7 (1.563) 0.65 (0.026) Pink
3-4 shift spring 6.4 (0.252) 37.0 (1.457) 0.6 (0.024)
—

Throttle backup spring 6.4 (0.252) 33.5 (1.319) 0.6 (0.024) Pink
Throttle modulator front spring 5.0 (0.197) 27.8 (1.094) 0.6 (0.024) Red
Throttle modulator rear spring 7.15 (0.281) 30.8 (1.213) 0.85 (0.033) Red
1
ranoe control SDrina
6.15 (0.242) 39.2 (1.543) 0.65 (0.026) White
2 range control spring 3.95 (0.156) 32.1 (1.264) 0.45 (0.018)
—

Kick-down
SDrina
5.4 (0.213) 38.1 (1.500) 0.8 0.031)
—

Throttle assist spring 5.15 (0.203) 32.3 (1.272) 0.55 (0.022) Dark green
Throttle spring 5.4 (0.213) 48.3 (1.902) 0.8 (0.031)
—

Converter relief ball spring 6.9 (0.272) 24.1 (0.949) 0I9 (0.035) Maroon
Orifice check valve soring 5.0 (0.197) 12.5 (0.492) 0.23 (0.009)
—
30—31