1987 Toyota Supra Repair Manual PDF

The 1987 Toyota Supra Repair Manual provides comprehensive technical information for the third-generation A70 Supra model. This manual covers the 3.0L 7M-GE inline-6 engine, 5-speed manual and 4-speed automatic transmissions, rear-wheel drive system, electronic fuel injection, independent suspension, power steering, braking systems, electrical systems, and body components. Below are key sections for maintenance procedures, troubleshooting, specifications, and repair guidelines.

1. Vehicle Specifications 2. Maintenance Schedule 3. Engine Repair 4. Transmission Systems 5. Electrical Systems 6. Suspension & Steering 7. Braking System 8. Fuel System 9. Cooling System 10. Troubleshooting Guide 11. Wiring Diagrams

Vehicle Specifications

Technical specifications for the 1987 Toyota Supra including engine, transmission, dimensions, and performance data.

ComponentSpecification
Engine3.0L 7M-GE DOHC inline-6
Horsepower200 hp @ 6000 rpm
Torque196 lb-ft @ 4800 rpm
Transmission5-speed manual W58 / 4-speed automatic A340E
DrivetrainRear-wheel drive
Fuel SystemElectronic Fuel Injection (EFI)
BrakesFront ventilated discs, rear solid discs
SuspensionIndependent front and rear
Wheelbase102.2 inches
Curb WeightApprox. 3,400 lbs

Maintenance Schedule

Recommended maintenance intervals for optimal performance and longevity.

  1. Oil and filter change: Every 3,000 miles or 3 months
  2. Spark plugs: Replace every 30,000 miles
  3. Timing belt: Replace every 60,000 miles
  4. Coolant flush: Every 30,000 miles or 2 years
  5. Brake fluid: Replace every 2 years
  6. Transmission fluid: Every 30,000 miles
  7. Air filter: Inspect and replace every 15,000 miles

WARNING! Always use genuine Toyota parts for optimal performance and reliability.

Engine Repair

Comprehensive engine service procedures for the 7M-GE powerplant.

  1. Compression testing: Remove spark plugs, test each cylinder
  2. Valve adjustment: Check and adjust valve clearances
  3. Timing belt replacement: Align timing marks, replace belt and tensioner
  4. Head gasket replacement: Torque cylinder head bolts in sequence
  5. Oil pump service: Inspect and replace as needed
  6. Ignition system: Distributor, coil, and spark plug maintenance

CAUTION! Proper torque specifications must be followed for all engine components.

Transmission Systems

Electrical Systems

Complete electrical system diagnosis and repair procedures.

Battery: 12V system maintenance and testing. Alternator: Charging system diagnosis. Starter: Starting circuit troubleshooting. Lighting: Headlight, taillight, and signal light repair. Instrument Cluster: Gauge and warning light systems. EFI System: Electronic Fuel Injection computer and sensors.

Suspension & Steering

Front and rear suspension components and power steering system.

  1. Strut replacement: Front MacPherson strut assembly
  2. Control arms: Bushings and ball joint inspection
  3. Rear suspension: Multi-link system service
  4. Power steering: Pump, rack, and fluid maintenance
  5. Wheel alignment: Camber, caster, and toe adjustment

Tip: Always perform wheel alignment after suspension repairs.

Braking System

Disc brake system maintenance and repair procedures.

  1. Brake pad replacement: Front and rear brake service
  2. Rotor resurfacing: Brake rotor inspection and machining
  3. Caliper rebuild: Piston seal replacement and lubrication
  4. Brake bleeding: Hydraulic system air removal
  5. Parking brake: Cable adjustment and mechanism service
  6. ABS system: Anti-lock brake component diagnosis

WARNING! Always test brakes at low speed after service before normal driving.

Fuel System

Electronic Fuel Injection system components and service.

Fuel pump: In-tank electric pump testing and replacement. Fuel filter: Replacement procedure and interval. Fuel injectors: Cleaning and flow testing. Fuel pressure regulator: Diagnosis and replacement. Throttle body: Cleaning and adjustment. Air flow meter: Vane-type AFM service.

Cooling System

Radiator, thermostat, water pump, and cooling fan maintenance.

  1. Radiator flush: Complete cooling system service
  2. Thermostat replacement: Temperature regulation
  3. Water pump: Impeller and seal inspection
  4. Cooling fan: Electric fan motor and clutch service
  5. Hoses and clamps: Inspection and replacement

CAUTION! Never open radiator cap when engine is hot to prevent burns.

Troubleshooting Guide

SymptomPossible CauseCorrective Action
Engine won't startFuel pump, ignition, batteryCheck fuel pressure, spark, battery voltage
OverheatingThermostat, water pump, radiatorTest thermostat, inspect water pump, flush radiator
Poor fuel economyO2 sensor, injectors, timingReplace O2 sensor, clean injectors, check timing
Brake vibrationWarped rotors, worn padsResurface or replace rotors, install new pads
Electrical issuesAlternator, battery, groundsTest charging system, clean battery terminals

Diagnostic Codes: Use diagnostic connector to retrieve EFI trouble codes.

Wiring Diagrams

Complete electrical schematics for all vehicle systems including engine management, lighting, instrumentation, and accessory circuits. Color-coded wiring diagrams with connector locations and pin assignments for accurate diagnosis and repair.

Service Support: Contact Toyota technical support or authorized dealership for complex electrical issues.

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