cooling MAZDA MIATA 1991 Factory Service Manual
[x] Cancel search | Manufacturer: MAZDA, Model Year: 1991, Model line: MIATA, Model: MAZDA MIATA 1991Pages: 392, PDF Size: 29.45 MB
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1990-91 ENGINE COOLING
Cooling System Specifications - MX-5 Miata
COOLING SYSTEM SPECIFICATIONS
COOLING SYSTEM SPECIFICATIONS
ApplicationSpecification
Coolant Replacement Interval30 Months Or 30,000 Miles
Coolant Capacity6.3 qts. (6.0L)
Pressure Cap11-15 psi (0.75-1.05 kg/cm2 )
Thermostat Open Temperature
Starts
Main Valve188-193°F (86.5-89.5°C)
Sub Valve182-188°F (83.5-86.5°C)
Fully Open212°F (100°C)
Thermostat Open Lift
Main Valve0.31" (8 mm)
Sub Valve0.06" (1.5 mm)
1991 Mazda MX-5 Miata
1990-91 ENGINE COOLING Cooling System Specifications - MX-5 Miata
1991 Mazda MX-5 Miata
1990-91 ENGINE COOLING Cooling System Specifications - MX-5 Miata
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1990-93 ENGINE COOLING
Drive Belt Routing & Adjustment - MX-5 Miata
ADJUSTMENT
Fig. 1: Identifying Correct Belt Mounting
Courtesy of MAZDA MOTORS CORP.
ALTERNATOR
Loosen alternator bolts and adjust belt deflection by turning adjusting bolt. See Fig. 2
, Fig. 6 and Fig. 7 . See
ADJUSTMENT SPECIFICATIONS
. Tighten bolts to specification. See TORQUE SPECIFICATIONS. NOTE: Ensure drive belts are not worn, cracked or frayed and are correctly mounted
on pulleys. See Fig. 1
.
NOTE: If a new belt is used, adjust belt deflection at midpoint of new belt specification.
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 286 of 392
Fig. 2: Adjusting Alternator Belt
Courtesy of MAZDA MOTORS CORP.
A/C COMPRESSOR
Loosen locknut and adjust belt deflection by turning adjusting bolt. See Fig. 3
, Fig. 6 and Fig. 7 . See
ADJUSTMENT SPECIFICATIONS
. Tighten bolts to specification. See TORQUE SPECIFICATIONS.
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 287 of 392
Fig. 3: Adjusting A/C Compressor & Power Steering Pump Belt
Courtesy of MAZDA MOTORS CORP.
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 288 of 392
Fig. 4: Adjusting A/C Compressor Belt
Courtesy of MAZDA MOTORS CORP.
POWER STEERING PUMP
Loosen power steering pump bolt and nuts and adjust belt deflection by turning adjusting bolt. See Fig. 3
, Fig.
6 and Fig. 7 . See ADJUSTMENT SPECIFICATIONS . Tighten bolts to specification. See TORQUE
SPECIFICATIONS .
DRIVE BELT ROUTING
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 289 of 392
Fig. 5: Identifying Drive Belt Routing & Deflection Check Point (1 Of 3)
Courtesy of MAZDA MOTORS CORP.
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 290 of 392
Fig. 6: Identifying Drive Belt Routing & Deflection Check Point (2 Of 3)
Courtesy of MAZDA MOTORS CORP.
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 291 of 392
Fig. 7: Identifying Drive Belt Routing & Deflection Check Point (3 Of 3)
Courtesy of MAZDA MOTORS CORP.
ADJUSTMENT SPECIFICATIONS
DEFLECTION SPECIFICATIONS
NOTE: Check belt deflection when engine is cold, or has bin off for 30 minutes.
Application(1) Specification - In. (mm)
New Belt (2)
Alternator0.31-0.35 (8-9)
A/C Compressor0.31-0.35 (8-9)
Power Steering Pump0.31-0.35 (8-9)
Used Belt
Alternator0.35-0.39 (9-10)
A/C Compressor0.35-0.39 (9-10)
Power Steering Pump0.35-0.39 (9-10)
(1)Deflection with 22 lbs. (10 kg) pressure applied midway on belt run.
Used on for less than 5 minutes.
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 292 of 392
TENSION SPECIFICATIONS
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS
(2)
Application(1) Specification - Lbs. (kg)
New Belt (2)
Alternator110-132 (50-60)
A/C Compressor110-132 (50-60)
Power Steering Pump110-132 (50-60)
Used Belt
Alternator95-110 (43-50)
A/C Compressor95-110 (43-50)
Power Steering Pump95-110 (43-50)
(1)Measure tension using Tension Gauge (49 9200 020), or equivalent.
(2)Used on for less than 5 minutes.
ApplicationFt. Lbs. (N.m)
Alternator Adjusting Bolt
"A"14-18 (19-25)
"B"27-38 (37-52)
A/C Compressor Locknut27-38 (37-52)
Power Steering Pump Adjusting Bolt
"A"23-44 (31-46)
"B"27-40 (37-54)
"C"14-18 (19-25)
1991 Mazda MX-5 Miata
1990-93 ENGINE COOLING Drive Belt Routing & Adjustment - MX-5 Miata
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Page 293 of 392
ELECTRICAL COMPONENT LOCATOR
1991 MAZDA ELECTRICAL COMPONENTS
BUZZERS, RELAYS & TIMERS
BUZZERS, RELAYS & TIMERS LOCATION
CIRCUIT PROTECTION DEVICES
CIRCUIT PROTECTION DEVICES LOCATION
CONTROL UNITS
ComponentLocation
ABS System
Check Valve RelayOn top of ABS pump motor.
Motor RelayOn top of ABS pump motor.
Buzzer & Timer UnitOn bracket, behind left side of dash.
See Fig. 1
.
Circuit Opening RelayOn bracket, behind left side of dash.
See Fig. 1
.
Cooling Fan RelayIn engine compartment fuse/relay
block. See Fig. 1
.
Dashboard Illumination Lights RelayOn bracket, near master cylinder. See
Fig. 1
.
EFI Main RelayIn engine compartment fuse/relay
block. See Fig. 1
& Fig. 2 .
Fuel Pump RelayBehind left front kick panel.
Headlight RelayOn bracket, near master cylinder. See
Fig. 1
.
Headlight Retractor RelayOn bracket, near master cylinder. See
Fig. 1
.
Horn RelayOn bracket, behind left side of dash.
See Fig. 1
.
Ignition RelayIn engine compartment fuse/relay
block.
Turn Signal/Hazard Flasher RelayOn bracket, behind left side of dash.
See Fig. 1
.
ComponentLocation
Fuse BlockBehind left side of dash.
Fuse/Relay BlockIn right rear corner of engine compartment, near firewall.
See Fig. 2
.
Heater Blower Motor Circuit BreakerIn passenger compartment fuse block.
1991 Mazda MX-5 Miata
ELECTRICAL COMPONENT LOCATOR 1991 MAZDA ELECTRICAL COMPONENTS
1991 Mazda MX-5 Miata
ELECTRICAL COMPONENT LOCATOR 1991 MAZDA ELECTRICAL COMPONENTS
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