🏷️ Basic Information Identification Make: Mazda Model: Miata Year: 1991 Chassis Code: NA Codes OBD System Coverage: OBD-I (On-Board Diagnostics I) 👋 Introduction Market Position Vehicle Class: Lightweight, rear-wheel-drive, two-seater sports convertible. Philosophy: Embodied the spirit of the classic British roadster, offering pure driving enjoyment at an accessible price point. Competitive Analysis Competitors 1991: Ford Capri, Toyota MR2, Fiat Spider, Alfa Romeo Spider. Key Features Design: Lightweight construction, excellent weight distribution (near 50/50), pop-up headlights, agile handling. Value Proposition: Affordable entry into sports car ownership, renowned for reliability and driving fun. 📋 Manual Details Coverage Areas General Coverage: Complete factory service and repair Mechanical Systems: Engine overhaul, brakes, timing belt, suspension, transmission, air conditioning, U-joints, CV-joints, front end alignment Electrical Systems: Wiring diagrams, trouble codes, computer diagnostic trouble tree charts Body And Chassis: Sunroof Maintenance: Factory maintenance schedules and charts, driving concerns, serpentine belt routings Page Count Estimated Pages: Estimated 1000+ pages (typical for a comprehensive factory service manual of this era) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul and rebuilding procedures for the 1.6L DOHC inline-4 engine. Engine Performance: Detailed analysis of engine performance, including tuning and diagnostics. Fuel System: Coverage of fuel injection system components, diagnostics, and repair. Cooling System: Radiator, fan, thermostat, coolant flow, and associated components. Lubrication System: Oil pump, oil filter, oil pan, and lubrication passages. Ignition System: Ignition coils, spark plugs, ignition control module, and timing. Exhaust System: Manifold, catalytic converter, mufflers, and piping. Transmission Manual: Removal, installation, in-car servicing, and complete overhaul procedures for the 5-speed manual transmission. Transmission Automatic: Coverage for automatic transmission models if equipped, including removal, installation, and servicing. Drivetrain: Propeller shaft, differential, axle shafts, U-joints, and CV-joints. Suspension Front: Double wishbone, shock absorbers, springs, anti-roll bar, ball joints, and alignment specifications. Suspension Rear: Multi-link independent suspension, shock absorbers, springs, and trailing arms. Steering System: Steering rack, tie rods, steering column, and power steering system (if applicable). Brake System: Front disc brakes, rear disc brakes (typical for Miata), calipers, rotors, pads, master cylinder, brake lines, and bleeding procedures. Wheel And Tires: Tire specifications, wheel bolt patterns, and mounting procedures. Body Exterior: Body panel removal and installation, bumper components, fenders, hood, trunk lid. Body Interior: Dashboard, seats, door panels, carpeting, and trim. Sunroof: Specific service and repair procedures for the manual or power sunroof. Climate Control: Air conditioning system service, capacities, refrigerant types, and component testing. Electrical Power Distribution: Battery, alternator, starter motor, and charging system. Lighting System: Headlights, taillights, interior lighting, and signal lights. Instrumentation: Gauges, warning lights, and instrument cluster diagnostics. Chassis Electrical: Horn, wipers, washer system, power windows (if equipped). Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, spark plug replacement, belt inspections. Engine Repair: Complete engine rebuild, head gasket replacement, piston ring replacement, valve service. Timing Belt Service: Specific step-by-step procedures for timing belt replacement, including tensioner and water pump recommendations. Brake Repair: Pad replacement, rotor resurfacing/replacement, caliper overhaul, brake line repair. Suspension Service: Component replacement (shocks, struts, bushings, ball joints), alignment procedures. Transmission Service: Fluid changes, clutch replacement, transmission overhaul. Electrical Troubleshooting: Diagnostic procedures for electrical faults using wiring diagrams and trouble codes. Ac Service: Recharging, leak detection, component replacement, evacuation. Drivetrain Service: U-joint replacement, CV-joint boot replacement and repair. Diagnostic Charts: Computer diagnostic trouble tree charts for systematic fault finding. Torque Specifications: Comprehensive list of all critical torque specifications for engine, chassis, and suspension components. Wiring Diagrams: Detailed, high-quality wiring diagrams for all electrical systems. Vacuum Diagrams: Detailed vacuum routing diagrams for engine and emissions control. Technical Depth Depth: In-depth, comprehensive coverage from basic maintenance to complete engine and transmission overhauls, suitable for both DIYers and professional mechanics. Detail Level: High detail with step-by-step instructions, exploded views, and clear diagrams. 📊 Manual Specifications File Format Format: PDF Readability: Easy-to-read text sections. Searchability: Likely searchable text within the PDF for efficient information retrieval. Print Quality Diagram Quality: Top quality diagrams and illustrations. Overall Quality: High-resolution, professional quality suitable for printing. Binding Type Binding: Digital Download (Printable) Paper Type Paper Type: N/A (Digital PDF) Compatibility Operating Systems: Compatible with all versions of Windows & Mac Requirements Software Requirements: Adobe PDF Reader & WinZip Delivery Delivery Method: Instant Download Features Printability: All pages are printable. ⚙️ Engine Specifications Primary Engine Engine Code: B6ZE Engine Type: Naturally aspirated, DOHC, Inline-4 (I4) Displacement: 1597 cc (1.6 Liters) Performance Horsepower: 115 hp @ 6500 rpm (US/Canada models) Torque: 100 lb-ft @ 5500 rpm (US/Canada models) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline (87 octane recommended) Other Bore X Stroke: 78.0 mm x 83.6 mm Compression Ratio: 9.0:1 Firing Order: 1-3-4-2 🔧 Transmission Standard Type: Mazda Type-B 5-speed Manual Transmission Optional Type: Optional 4-speed Automatic Transmission Features...