🏷️ Basic Information

Make:

Mazda

Model:

RX-7

Model Code:

FC Generation (Series 5 is subsequent, this is Series 4)

Year:

1986

Chassis Code:

FC3S (Coupe), FC3C (Convertible)

Engine Code:

13B

👋 Introduction

Era Context:

The 1986 RX-7 (FC generation) represented Mazda's second iteration of its sporty rear-wheel-drive coupe, aiming to compete in the premium sports car segment against established rivals. It offered a blend of performance, distinctive styling, and the unique appeal of its rotary engine.

Segment Rivals:

Competed with vehicles such as the Nissan 300ZX (Z31), Toyota Supra (MkII/MkIII), Porsche 944, and Chevrolet Camaro/Pontiac Firebird.

Rotary Powerplant:

The defining characteristic is the 13B naturally aspirated rotary engine, offering a unique driving experience, high RPM capability, and a compact, lightweight design compared to piston engines of similar displacement. The 1986 model marked the introduction of fuel injection.

Chassis And Handling:

Featured a sophisticated independent suspension system, including MacPherson struts in the front and a semi-trailing arm setup in the rear, contributing to its balanced handling and sporty ride characteristics. Power steering was standard.

📋 Manual Details

Covered Systems:

Engine (Rotary), Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System, Clutch, Transmission (Manual & Automatic), Driveshaft, Differential, Suspension (Front & Rear), Steering System, Brakes (Front & Rear), Electrical System (Wiring Diagrams, Components), Bodywork, Interior, HVAC, Emission Control Systems, Troubleshooting Procedures, Diagnostic Techniques.

Page Count:

Likely extensive, typical factory technician manuals for this era exceed 500 pages, often around 700-1000+ when including all sections and diagrams. Specific count not provided, but implies comprehensive coverage.

Manual Type:

Factory Technician Training Manual

Language:

English

Format:

Printed Manual

📖 Manual Coverage

Primary Focus:

Detailed technical information and procedures specific to the 1986 Mazda RX-7 for factory-trained technicians.

Repair And Maintenance:

Engine overhaul (rotary apex seals, rotor housings, eccentric shaft), fuel injection system calibration, ignition timing adjustments, cooling system service, clutch replacement, transmission diagnostics and repair, suspension component alignment and replacement, brake system bleeding and component replacement, electrical system troubleshooting using schematics, body panel alignment and repair, HVAC system servicing, emissions control system diagnostics.

Diagnostic And Overhaul:

Advanced diagnostic procedures, detailed troubleshooting flowcharts, specific torque specifications, component tolerances, specialized tool requirements, and in-depth rebuild procedures for major mechanical and electrical systems. Designed for professionals, not basic DIY.

📊 Manual Specifications

Medium:

Physical printed document

Paper And Ink:

High-quality paper stock, clear diagrams and text. Factory printed specifications.

Binding:

Likely professional binding (e.g., perfect bound, spiral bound, or three-ring binder format) suitable for workshop use.

Durability:

Durable paper designed for frequent handling in a professional service environment.

⚙️ Engine Specifications

Engine Type:

Naturally Aspirated Rotary

Engine Code:

13B

Rotor Displacement:

654 cc per rotor (1308 cc total effective displacement)

Horsepower:

146 hp @ 6500 rpm (NA model)

Torque:

150 lb-ft @ 3500 rpm (NA model)

Injection System:

Electronic Fuel Injection (EFI) - Bosch L-Jetronic or similar Mazda implementation

Coolant Type:

Mazda recommends a 50/50 mix of ethylene glycol coolant and distilled water. Specific Mazda coolant P/N: FL22 or equivalent.

Oil Capacity:

Approx. 5.3 US quarts (5.0 liters) with filter change. Recommended oil: SAE 10W-30 or 10W-40 API SG or higher.

Spark Plugs:

Requires specialized rotary spark plugs. Typically NGK or Denso. Example: NGK R7437-9 (specific to rotary engine performance tuning, but standard for NA 13B would be different, manual would specify exact OE part numbers).

🔧 Transmission

Transmission Type:

5-speed Manual

Transmission Type:

4-speed Automatic

Clutch Type:

Hydraulically actuated diaphragm-spring clutch.

Manual Transmission Fluid:

API GL-4 or GL-5, SAE 75W-90 or 80W-90 gear oil. Mazda recommendation may vary, check manual for specific P/N.

Automatic Transmission Fluid:

Mazda ATF Type T-IV or equivalent. Capacity approx. 3.5 US quarts (3.3 liters) for drain and fill.

📐 Dimensions

Length:

Approximately 168.5 inches (4280 mm)

Width:

Approximately 66.5 inches (1690 mm)

Height:

Approximately 49.6 inches (1260 mm)

Wheelbase:

Approximately 95.7 inches (2430 mm)

Curb Weight:

Approx. 2700-2900 lbs (1225-1315 kg), depending on trim and transmission.

Gross Vehicle Weight Rating:

Not typically listed in manuals, but around 3700-3900 lbs.

🛡️ Safety Features

Crash Test Data:

No official NHTSA or IIHS ratings available for this specific year and model. Safety features were standard for the era.

Braking System:

Front ventilated discs, rear solid discs. Power assisted. ABS was optional or standard on higher trims in later years, but likely not on base 1986 models.

Steering System:

Power assisted rack and pinion.

Restraint Systems:

3-point seat belts, driver's side airbag was not standard equipment in 1986.

Body Structure:

Designed with crumple zones and a reinforced passenger compartment for its time.

💡 Technology Features

Audio System:

Factory-installed radio with AM/FM tuner, cassette player. Speakers typically located in doors and rear deck. Manual would detail wiring for upgrades.

ABS:

Anti-lock Braking System (ABS) was an optional feature and not standard across all trims for the 1986 model. The manual would cover its specific components and diagnostic procedures.

Gauges:

Comprehensive instrument cluster including tachometer, speedometer, oil pressure, water temperature, voltage, and fuel level. Some models may have an oil temperature gauge and a boost gauge (on Turbo models, not applicable here).

🔧 Maintenance

Oil Change Interval:

Typically every 3,000-5,000 miles (5,000-8,000 km) or 6 months, whichever comes first. Rotary engines require frequent oil changes and oil level checks.

Spark Plug Replacement:

Spark plugs for rotary engines have shorter service lives than conventional engines. Typically replaced every 15,000-30,000 miles. The manual will specify exact OE part numbers and intervals.

Timing Belt Replacement:

Rotary engines do not have a timing belt; they use a timing chain or gear system. This is a key difference from piston engines. The manual will cover chain/gear inspection and tensioner service.

Brake Fluid:

DOT 3 or DOT 4 brake fluid. Capacity approx. 1 US quart (0.95 liters).

Coolant Capacity:

Approx. 7.4 US quarts (7.0 liters).

Apex Seal Wear:

A common concern with older rotary engines is apex seal wear, leading to reduced compression, rough running, and potential failure. Proper maintenance, including regular oil changes and avoiding engine abuse, is critical. The manual would detail compression testing procedures.

Vacuum Leaks:

Intake manifold vacuum leaks, aged rubber hoses, and injector seal issues can affect fuel mixture and idle quality. The manual will provide troubleshooting steps for these.

Oil Metering System:

The oil metering pump (OMP) is crucial for lubricating the apex seals. Malfunctions or blockages can lead to premature wear. The manual would cover its inspection and adjustment.

📚 Vehicle History

Mazda Rotary Legacy:

Mazda has a long and storied history with the Wankel rotary engine, dating back to the Mazda Cosmo. The RX-7 is the pinnacle of their sports car development using this unique powerplant.

Rx7 Generations:

The 1986 model year marks the introduction of the second generation RX-7, codenamed FC. It replaced the iconic SA22C (FB) generation. The FC was available in Naturally Aspirated (NA) and Turbocharged variants, though this manual likely covers the NA 13B, which was the primary engine for the base model.

Manufacturing Location:

Japan

Production Period:

The FC generation was produced from 1985 to 1992. The 1986 model is part of the early 'Series 4' iteration.

🏆 Awards & Recognition

Automotive Press Acclaim:

The RX-7, particularly the FC generation, was generally well-received by automotive journalists for its handling, styling, and unique rotary engine. It was often featured in 'best sports car' lists of its era.