1988 RX7 Service Manual

The 1988 Mazda RX7 is a second-generation sports car featuring a 1.3L 13B rotary engine, rear-wheel drive configuration, 5-speed manual or 4-speed automatic transmission, independent suspension, and distinctive pop-up headlights. This service manual covers maintenance procedures, specifications, troubleshooting, and repair instructions for proper vehicle upkeep.

1. Vehicle Specifications 2. Engine System 3. Transmission & Drivetrain 4. Suspension & Steering 5. Brake System 6. Electrical System 7. Fuel System 8. Cooling System 9. Maintenance Schedule 10. Troubleshooting Guide 11. Technical Data

Vehicle Specifications

Key specifications for the 1988 Mazda RX7 including dimensions, weights, and performance data.

Specification	Details
Engine Type	13B Rotary, 2-rotor Wankel
Displacement	1.3L (1308cc)
Power Output	146 hp @ 6500 rpm
Torque	138 lb-ft @ 3500 rpm
Transmission	5-speed manual / 4-speed automatic
Curb Weight	2756 lbs (1250 kg)
Wheelbase	95.7 inches
Length	169.1 inches
Width	66.5 inches
Height	50.4 inches

Engine System

The 13B rotary engine requires specialized maintenance procedures unique to Wankel engines.

Rotor Housing: Inspect for chatter marks and wear patterns during service
Apex Seals: Check clearance and condition during major service
Ignition System: Dual ignition system with two spark plugs per rotor
Oil Injection: Separate metering oil pump for rotor lubrication
Engine Mounts: Inspect for deterioration and replace if necessary

WARNING! Rotary engines require specific oil types and maintenance intervals. Use only recommended lubricants.

Transmission & Drivetrain

Manual and automatic transmission service procedures and specifications.

Manual Transmission: Check fluid level and condition every 30,000 miles
Automatic Transmission: Fluid change recommended every 60,000 miles
Clutch System: Adjust pedal free play to 0.4-0.8 inches
Differential: Limited-slip differential requires special lubricant
Drive Shaft: Inspect U-joints for wear and proper lubrication

CAUTION! Always use jack stands when working under vehicle. Ensure parking brake is engaged.

Suspension & Steering

Front Suspension: Independent with MacPherson struts
Rear Suspension: Independent with Watt's linkage
Steering Type: Rack and pinion with power assist
Wheel Alignment: Front: -0.5° camber, 1/8" toe-in; Rear: -1.0° camber
Shock Absorbers: Gas-filled, replace in pairs
Stabilizer Bars: Front: 0.87", Rear: 0.71"

Brake System

Front disc and rear drum brake system maintenance and service procedures.

Front Brakes: Ventilated discs, 10.0" diameter. Rear Brakes: Drum type, 9.0" diameter.

Brake Fluid: DOT 3 recommended, change every 2 years. Pad Replacement: Front pads replace at 3mm thickness. Drum Adjustment: Self-adjusting mechanism during reverse braking. Master Cylinder: Check for leaks and proper fluid level. Brake Lines: Inspect for cracks and corrosion annually.

Electrical System

12-volt negative ground system with alternator and battery specifications.

Battery: 12V 45Ah, located in engine compartment
Alternator: 70A output, check belt tension regularly
Starter: Direct drive type, inspect solenoid contacts
Fusible Links: Located near battery, protect main circuits
Lighting: Sealed beam headlights with pop-up mechanism

Tip: Disconnect battery negative terminal before performing electrical work.

Fuel System

Electronic fuel injection system with thermal reactor emissions control.

Fuel Pump: Electric, in-tank type, pressure: 28-34 psi
Injectors: Clean every 60,000 miles for optimal performance
Fuel Filter: Replace every 30,000 miles or 2 years
Thermal Reactor: Emissions device, inspect for cracks
Fuel Tank: 16.9 gallon capacity, check for rust and leaks
Fuel Lines: Inspect for deterioration and proper routing

WARNING! Fuel system operates under pressure. Relieve pressure before service.

Cooling System

Pressurized cooling system with radiator and oil cooler maintenance.

Maintenance Schedule

Recommended service intervals for optimal vehicle performance and longevity.

Every 3,000 miles: Oil and filter change. Every 7,500 miles: Rotate tires, inspect brakes. Every 15,000 miles: Air filter replacement, spark plugs. Every 30,000 miles: Transmission fluid, coolant flush. Every 60,000 miles: Timing belt, fuel injector service.

CAUTION! Rotary engines have specific oil consumption characteristics. Check oil level frequently.

Troubleshooting Guide

Symptom	Possible Cause	Corrective Action
Hard starting	Weak battery, fuel pressure	Check battery voltage, fuel pump operation, injector pulse
Overheating	Coolant level, thermostat	Check coolant level, radiator cap, thermostat operation
Poor acceleration	Ignition timing, fuel delivery	Verify timing marks, check fuel pressure and filter
Excessive oil consumption	Apex seal wear, oil leaks	Compression test, inspect for external leaks
Brake vibration	Warped rotors, worn pads	Resurface or replace rotors, install new pads

Diagnostic: Use factory service manual for specific diagnostic procedures.

Service: Consult authorized Mazda dealership for complex rotary engine repairs.