Mazda MX-5 1990 Workshop Manual page 791

TECHNICAL DATA
TO
Item
Engine
B6DOHC
Inner rotor tooth tip to outer rotor
Standard 0.02-0.16 (0.0008-0.0063)
clearance mm (in)
Maximum 0.20 (0.0079)
Outer rotor to body clearance mm (in)
Standard 0.09-0.18 (0.0035-0.0071)
Maximum
0.22 (0.0087)
Side clearance
mm (in)
Standard
0.03-0.11 (0.0012-0.0043)
Maximum 0.14 (0.0055)
Oil filter
Type Full-flow, paper element
Relief pressure differential kPa (kg/cm2, psi) 78-118(0.8-1.2,11-17)
Engine oil
Capacity
Total (dry engine) 3.6 (3.8, 3.2)
Oil pan 3.2 (3.4, 2.8)
liters (US qt, Imp qt)
Oil filter 0.17 (0.18,0.15)
Grade API Service SF or SG
Above 30°C (86°F) SAE 40
0°C-40°C (32°F-104°F) SAE 30
-10°C-20°C (14°F-68°F) SAE 20W-20
Viscosity
Above -10°C (14°F) SAE 20W-40 or 20W-50
number
-250C-300C (-13°F-86°F) SAE 10W-30
Above -25°C (-13°F) SAE 10W-40 or 1 OW-50
Below OOC (32°F) SAE 5W-30
Below -20°C (-4°F)
SAE 5W-20
E. COOLING SYSTEM
Item
Engine
B6DOHC
-
Cooling method
Water-cooled, forced circulation
Water pump
Type
Centrifugal, V-belt driven
Impeller diameter mm (in)
75 (2.95)
Number of impeller blades
6
Speed ratio
1 : 1.05
Water seal type
Unified mechanical seal
Thermostat
Type
Wax, two-stage
Opening temperature °C (OF)
Sub: 83.5-86.5 (182-:-188), Main: 86.5-89.5 (188-193)
Full-open temperature
0C (OF)
100 (212)
Full-open lift mm (in)
Sub: 1.5 (0.06) min., Main: 8.0 (0.31) min.
Radiator
Type
Corrugated fin
Cap valve opening pressure
kPa (kg/cm
2
,
psi) 74-103 (0.75-1.05,11-15)
Cooling circuit checking pressure
kPa (kg/cm
2
,
psi)
103 (1.05,15)
Cooling fan
Type
Electric
Number of blades
5
Outer diameter
mm (in)
320 (12.6)
Switching temperature OFF
~
ON 0C (OF)
97 (207)
Capacity
W-V
70-12
Current
A 5.3-6.5
Coolant
Capacity liters (US qt, Imp qt)
6.0 (6.3, 5.3)
TD-5