🏷️ Basic Information Identification Make: Mazda Model: RX-3 Year: 1975 Generation Generation Designation: First Generation (S124A) Codes Chassis Code: S124A 👋 Introduction Market Position Target Audience: Do-it-yourselfers and experienced mechanics alike, aiming to facilitate cost-effective vehicle repair and maintenance. Competitive Analysis Value Proposition: Provides comprehensive, factory-level repair information to save money on professional servicing and to enable restoration projects. Key Features Content Quality: 100% complete and intact, no missing/corrupt pages/sections. Detailed illustrations, exploded diagrams, drawings, and photos. Usability: Bookmarked and searchable for easy navigation, printable pages for workshop use. 📋 Manual Details Coverage Areas Covered Models: All RX-3 models for 1975 production year Covered Engines: All engine variants for the 1975 RX-3 Page Count Estimated Page Count: Extensive (specific count not provided, but described as 'complete' and 'hundreds of photos and illustrations') Manual Type Manual Type: Official Service and Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine overhaul and rebuilding, engine performance, firing orders, troubleshooting and diagnostics, computer diagnostic trouble tree charts, computer diagnostic codes, vacuum diagrams Drivetrain Systems: Transmission removal and installation, transmission in-car servicing, U-joint and CV-joint service procedures Braking Systems: Brakes, brake servicing procedures, complete torque specifications (relevant to brakes) Suspension Steering: Front end and alignment procedures and specifications, suspension Electrical Systems: Wiring diagrams, complete wiring diagrams HVAC Systems: Air conditioning service and capacities Body And Chassis: Sunroof Procedures Included Maintenance Procedures: Factory maintenance schedules and charts, timing belt replacement, timing belt service procedures, serpentine belt routings with diagrams, general repair procedures Diagnostic Procedures: Trouble codes, troubleshooting and diagnostics, computer diagnostic trouble tree charts, engine performance diagnostics Rebuilding Procedures: Engine overhaul and rebuilding, complete disassembly of the machine Technical Depth Technical Depth: Comprehensive, covering everything from basic maintenance to complete engine rebuilds and diagnostics. Suitable for both DIY and professional mechanics. Technical Details Torque Specifications: Complete torque specifications for all major components and fasteners. Diagrams: Detailed illustrations, exploded diagrams, drawings, and photos, as well as vacuum diagrams and wiring schematics. Specifications Coverage: Detailed specifications on every model covered. Repair Procedures: Step-by-step instructions based on complete disassembly of the machine. 📊 Manual Specifications File Format File Format: PDF Searchability: Searchable Print Quality Printability: Fully printable Zoom Capability: Zoom in/out functionality Binding Type Binding Type: Digital (PDF) Paper Type Paper Type: N/A (Digital File) Delivery Delivery Method: Instant Download Compatibility Operating Systems: All Versions of Windows & Mac Software Requirements: Adobe PDF Reader ⚙️ Engine Specifications Primary Engine Engine Type: Rotary (Wankel) Engine Code Examples: 12A (typically) Displacement Cc: 1146 cc (for 12A) Performance Hp Example: Approx. 90-100 HP (depending on specific market and emissions controls for the 12A engine) Performance Torque Example: Approx. 90-100 lb-ft (depending on specific market and emissions controls for the 12A engine) Fuel System Fuel System Type: Carbureted (typically downdraft or side-draft carburetors) Fuel Type: Unleaded gasoline (as per 1975 regulations, though leaded might have been common initially) Ignition System Ignition Type: Distributor-based ignition system Lubrication Oil Type Recommendation: Specific rotary engine oil required; consult manual for exact API service classification and viscosity grade (e.g., SAE 10W-30 or 10W-40, but critically, designed for rotary apex seals) Cooling System Coolant Type: Ethylene glycol-based antifreeze/coolant mixed with distilled water 🔧 Transmission Standard Standard Transmission Type: 4-speed manual transmission Optional Optional Transmission Type: 3-speed automatic transmission (less common than manual) Features Transmission Fluid Type: Dexron II (or equivalent) Automatic Transmission Fluid for automatic; Gear oil for manual (specific grade and quantity in manual) Clutch Type: Single dry plate clutch (for manual transmission) 📐 Dimensions Exterior Body Styles Offered: Coupe, Sedan, and potentially Wagoon variants for the RX-3 line. Weights Curb Weight Example: Approx. 2,100 - 2,300 lbs (950 - 1045 kg) depending on body style and equipment 🛡️ Safety Features Ratings Safety Ratings Era: Safety regulations and testing were less rigorous in 1975 compared to modern standards. Specific crash test ratings (like NHTSA or IIHS) are unlikely to be comparable to today's vehicles. Active Features Braking System Features: Front disc brakes, rear drum brakes. Power assistance may be optional or standard depending on trim. Passive Features Seatbelts: Lap and shoulder belts (front), lap belts (rear) were standard or optional depending on market. Steering Column: Collapsible steering column (a safety feature evolving in the mid-70s) 💡 Technology Features Infotainment Infotainment Features: Basic AM/FM radio, likely with analog tuning. Cassette player was an optional upgrade in later years of this generation or other Mazda models of the era. Driver Assistance Driver Assistance Features: Virtually none by modern standards. Focus was on mechanical systems. Connectivity Connectivity Features: N/A. No modern connectivity features like Bluetooth or USB. Lighting Headlights: Halogen headlights, likely sealed beam units. 🔧 Maintenance Service Intervals Oil Change Interval Recommendation: Typically every 3,000-5,000 miles (4,800-8,000 km) or as specified in the manual, with attention to rotary-specific oil lubrication systems....