Introduction
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Market Position
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Target Audience:
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Owners, enthusiasts, mechanics, and restoration specialists of Mazda RX2 and RX3 models from 1970-1978.
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Competitive Analysis
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Advantage Over Alternatives:
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Digital format provides instant access, cost savings over physical manuals, and the ability to print only necessary sections, preserving the integrity of the digital file.
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Key Features
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Manual Benefits:
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Provides comprehensive, factory-level repair and maintenance guidance, detailed diagrams and illustrations, and efficient troubleshooting to save time and money on repairs.
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Manual Coverage
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Systems Covered
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Systems:
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General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Heater/Air Conditioner, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle
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Procedures Included
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Procedures:
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Detailed substeps, notes, cautions, warnings, numbered instructions, troubleshooting, electrical service procedures, disassembly, assembly, cleaning, reinstalling, diagnostics, repair procedures, maintenance, lubrication
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Technical Depth
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Depth Of Information:
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Comprehensive, professional, detailed, factory-level diagnostic and repair information, specific vehicle or equipment repair
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Illustrations
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Diagram And Photo Quality:
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Detailed illustrations, drawings, and photos, including enlarged insets for detailed part examination.
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Usability
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Navigation:
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Numbered table of contents for easy and fast information retrieval.
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Troubleshooting
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Diagnostic Approach:
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Combined troubleshooting and electrical service procedures with detailed wiring diagrams for ease of use and effective problem diagnosis.
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Body And Chassis
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Body Repair:
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Information on chassis and body repair, including frame straightening, panel replacement, and corrosion prevention measures.
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Electrical System
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Wiring Diagrams:
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Comprehensive wiring diagrams covering all electrical systems, including engine management, lighting, accessories, and instrumentation.
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Engine Specifications
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Primary Engine
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Engine Type:
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Rotary (Wankel) Engine
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Displacement:
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10A (110 cu in / 1.0 L), 12A (114 cu in / 1.2 L - typically referred to as 1.2L or 12A)
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Performance
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Horsepower Range:
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Estimated 100-125 hp (varies by specific model and tuning)
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Torque Range:
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Estimated 100-120 lb-ft (varies by specific model and tuning)
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Fuel System
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Fuel Delivery:
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Carbureted (e.g., Hitachi, Nikki) for most variants; Fuel Injection introduced later in production for some models/markets, but manual likely focuses on carbureted.
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Lubrication
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Oil Type:
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Specific rotary engine oil blend or high-quality API SF/SG rated oil (refer to manual for exact specifications and potential pre-mix requirements).
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Cooling System
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Cooling Method:
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Water-cooled
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Engine Control System
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Ignition Timing:
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Adjustable ignition timing; detailed procedures for setting and checking included in the manual.
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Emissions System
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Emission Controls:
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Details on emission control systems relevant to the production era, including potential air pumps, PCV systems, and exhaust gas recirculation (EGR) if applicable.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Typically every 3,000-5,000 miles (or as per manual, critical for rotary engine longevity).
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Spark Plug Replacement:
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Refer to manual; rotary spark plugs have specific service life and types.
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Fluid Specifications
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Coolant Type:
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Ethylene glycol-based antifreeze (50/50 mix with distilled water recommended; specific type as per manual).
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Brake Fluid Type:
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DOT 3 or DOT 4 brake fluid (as specified in manual).
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Known Issues
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Apex Seal Wear:
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Common concern with rotary engines; proper maintenance, oil changes, and avoiding detonation are crucial for apex seal longevity.
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Carburetor Tuning:
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Carburetors can require regular adjustment and cleaning for optimal performance and fuel economy.
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Ignition System:
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Distributor, points, and condenser require regular maintenance and adjustment.
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Part Numbers
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Oil Filter Part Number:
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Varies by manufacturer and application; specific cross-references available within the manual.
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Technical Specifications
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Engine Idle Speed:
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Specific RPM figures for idle speed are provided in the manual for both hot and cold operation.
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Lubrication Schedule
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Periodic Lubrication Points:
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Detailed chart of all lubrication points (e.g., suspension joints, driveshaft U-joints, steering linkage) and recommended lubricant types and intervals.
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