The 1986 Mazda RX7 is a second-generation sports car featuring a 1.3L 13B rotary engine, rear-wheel drive, and distinctive pop-up headlights. This manual covers operation, maintenance, and troubleshooting for the FB series RX7. Below are key sections for vehicle features, operation procedures, maintenance schedules, specifications, and troubleshooting guidance.
Key components: 1.3L 13B rotary engine, 5-speed manual transmission, independent rear suspension, power-assisted rack-and-pinion steering, ventilated front disc brakes.
| Feature | Description |
|---|---|
| Engine Type | 13B two-rotor Wankel rotary engine |
| Displacement | 1.3L (1308cc) |
| Horsepower | 146 hp @ 6500 rpm |
| Torque | 138 lb-ft @ 4000 rpm |
| Transmission | 5-speed manual (4-speed automatic optional) |
| Fuel System | Electronic fuel injection |
| Fuel Capacity | 16.4 gallons |
| Curb Weight | 2513 lbs |
| Wheelbase | 95.7 inches |
| Braking System | Ventilated front discs, rear drums |
Familiarize yourself with controls and warning indicators.
WARNING! Never operate vehicle with warning lights illuminated. Stop immediately if oil pressure light comes on.
Proper procedures for starting, driving, and shutting down rotary engine.
CAUTION! Do not flood rotary engine - if flooding occurs, hold accelerator to floor while cranking.
Regular maintenance is critical for rotary engine longevity.
Every 3,000 miles/3 months: Oil change, oil filter, inspect brakes, check fluids
Every 7,500 miles: Rotate tires, check wheel alignment
Every 15,000 miles: Replace air filter, spark plugs, check ignition system
Every 30,000 miles: Replace fuel filter, check cooling system, inspect exhaust
Every 60,000 miles: Major service including timing, compression check
Proper fluid types and capacities for optimal performance.
Tip: Check oil level frequently - rotary engines consume small amounts of oil during normal operation.
12-volt negative ground system with 65-amp alternator.
WARNING! Disconnect battery before performing electrical work. Rotary engines require strong spark - maintain ignition system properly.
Dual-circuit hydraulic system with vacuum booster.
Front: Ventilated disc brakes (10.1" diameter)
Rear: Drum brakes (9.0" diameter)
Parking brake: Mechanical, operating on rear wheels only
Maintenance: Check pad/shoe wear every 3,000 miles. Replace brake fluid every 2 years.
Pressurized system with radiator and electric fan.
Capacity: 8.7 quarts including heater
Thermostat: Opens at 180°F (82°C)
Coolant: 50/50 ethylene glycol and water mixture
CAUTION! Never remove radiator cap when engine is hot. Check coolant level in overflow tank when cool.
| Symptom | Possible Cause | Corrective Action |
|---|---|---|
| Hard starting | Flooded engine, weak spark | Hold accelerator to floor while cranking; check spark plugs |
| Loss of power | Clogged fuel filter, ignition issues | Replace fuel filter; check spark plugs and wires |
| Overheating | Low coolant, thermostat stuck | Check coolant level; replace thermostat if necessary |
| Oil consumption | Normal for rotary, excessive use indicates issues | Check for leaks; monitor consumption rate |
| Brake vibration | Warped rotors, worn components | Resurface or replace rotors; check brake components |
Rotary Specific: Regular compression checks recommended every 30,000 miles.
Service: Contact authorized Mazda dealership for specialized rotary engine service.
Basic warranty: 12 months/12,000 miles. Powertrain warranty: 36 months/50,000 miles. Rust perforation warranty: 36 months/unlimited mileage. Maintain records of all service for warranty claims. For warranty service, contact authorized Mazda dealership with proof of purchase and maintenance records.