🏷️ Basic Information Identification Make: Mazda Model: RX-3SP Production Years: 1977-1978 Codes Chassis Codes: S124A (Coupe), S108A (Sedan - though SP was typically coupe/GT) 👋 Introduction Market Position Market Position: The Mazda RX-3SP was a sporty variant of the RX-3, aimed at enthusiasts seeking performance and distinctive styling, particularly appealing to those interested in rotary engine technology. Competitive Analysis Competitive Analysis: Competed with other sporty compacts and pony cars of the era, such as the Datsun 240Z/260Z, Toyota Celica GT, Ford Mustang, and Chevrolet Camaro, differentiating itself with its unique Wankel rotary engine. Key Features Key Features: Distinctive styling (often a coupe or hatchback), powerful and smooth rotary engine, sporty suspension tuning, SP badging denoting performance enhancements. 📋 Manual Details Coverage Areas Systems Covered Overview: Comprehensive service and repair for all major vehicle systems, including engine, drivetrain, chassis, electrical, and body. Page Count Page Count: Estimated 500-700 pages (typical for a complete factory service manual of this era) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Likely Printed (original) or Digital (PDF - common for reproduction) 📖 Manual Coverage Systems Covered Engine Systems: Rotary engine (12A), lubrication, cooling, fuel delivery (carburetion), ignition, emissions control, engine disassembly/assembly, troubleshooting. Transmission Systems: Manual transmission (likely 4 or 5-speed), clutch operation, removal/installation, internal component service, troubleshooting. Drivetrain Systems: Rear axle, driveshaft, U-joints, wheel bearings, differential service. Suspension Steering: Front and rear suspension components, shock absorbers, springs, bushings, steering gear, power steering system (if equipped), wheel alignment specifications. Brake Systems: Front disc brakes, rear drum brakes, hydraulic system, parking brake, brake fluid specifications, bleeding procedures, component replacement. Electrical Systems: Battery, charging system (alternator), starting system, lighting, ignition system, instrument cluster, wiring diagrams, fuse/relay identification, diagnostic procedures. Body Chassis: Body panels, doors, windows, interior trim, seats, bumpers, chassis lubrication, frame specifications. Emissions Control: Air pump system, EGR valve, catalytic converter (if applicable), emission control component testing and adjustment. Fuel System Details: Detailed information on the Hitachi/Nikki carburetor, fuel pump, fuel lines, and related components, including adjustments and overhaul. Cooling System Details: Covers radiator, water pump, thermostat, hoses, and fan operation. Rotary engines have specific cooling requirements due to their design. Lubrication System Details: Explains oil pump, oil pan, oil filter, and the crucial oil injection system or pre-mix requirements for apex seal lubrication. Electrical System Details: Comprehensive wiring diagrams, component identification, testing procedures for alternator, starter, ignition coil, etc. Procedures Included Maintenance Procedures: Routine maintenance tasks such as oil changes, filter replacements, spark plug replacement, ignition timing adjustment, carburetor adjustment, fluid checks and changes. Troubleshooting Procedures: Systematic diagnostic steps for common problems, including no-start conditions, engine performance issues, electrical faults, and braking problems. Repair Procedures: Detailed step-by-step instructions for component removal, overhaul, and reinstallation for all major vehicle systems. Diagnostic Procedures: Methods for identifying faults, including visual inspections, measurement of electrical components, and performance testing. Torque Specifications: Provides precise torque values for all critical fasteners, essential for engine, transmission, and chassis work. Engine Rebuild Procedures: Detailed instructions for disassembling, inspecting, and reassembling the 12A rotary engine, including apex seal installation and housing lapping (if applicable). Technical Depth Technical Depth: Comprehensive, covering everything from basic adjustments to complete engine and transmission rebuilds, including torque specifications and clearances. Diagnostic Charts: Includes detailed diagnostic charts and flowcharts for troubleshooting electrical and mechanical issues. 📊 Manual Specifications File Format File Format: If digital, typically PDF with searchable text and clear imagery. Print Quality Print Quality: Originals would have factory print quality; digital reproductions should aim for high resolution for diagrams and text legibility. Binding Type Binding Type: Originals were often perfect bound or spiral bound for lay-flat usability. Digital copies are not applicable. Paper Type Paper Type: Originals used durable paper stock suitable for workshop environments. Digital copies are not applicable. Completeness Completeness: This is a comprehensive service and repair manual covering all aspects necessary for maintenance and repair. It is not a condensed or owner's manual. ⚙️ Engine Specifications Primary Engine Engine Type: Mazda 12A Rotary (Wankel) Engine Configuration: Two-rotor, naturally aspirated Displacement: 1146 cc (69.9 cu in) - This is the effective displacement for the 12A rotary. Performance Horsepower: Approx. 100-110 hp (depending on specific market and emissions equipment) Torque: Approx. 105-115 lb-ft (depending on specific market and emissions equipment) Fuel System Carburetor Type: Hitachi or Nikki two-barrel downdraft carburetor (e.g., DCH-280 or similar) Fuel Type: Unleaded Gasoline (87 octane or higher) Engine Management Ignition System: Distributor-based, points or electronic ignition (depending on specific build date/market) 🔧 Transmission Standard Transmission Type: 4-speed manual transmission (most common) Optional Transmission Type: 5-speed manual transmission (available on some variants, including SP models), 3-speed automatic transmission (less common for SP) Features Clutch Type: Single dry plate, hydraulically operated 📐 Dimensions Exterior Body Styles: Coupe, Hardtop Coupe, Sedan (SP designation most commonly associated with Coupe/Hardtop) Wheelbase:...