Target Audience:
Do-it-yourselfers as well as experienced mechanics.
Value Proposition:
Inexpensive way to keep your vehicle working properly, save money on repairs.
Content Strength:
Complete official documentation with detailed illustrations and step-by-step instructions.
Manual Type Advantage:
Official factory manual provides the highest level of accuracy and detail compared to aftermarket or generic guides.
Engine:
Engine Overhaul and Rebuilding, Engine Performance, Firing Orders, Vacuum Diagrams
Chassis And Suspension:
Brakes, Front End and Alignment Procedures and Specifications, Suspension, U-Joint and CV-Joint Service Procedures
Transmission:
Transmission Removal and Installation, Transmission In-Car Servicing
Electrical And Diagnostics:
Wiring Diagrams, Trouble Codes, Troubleshooting and Diagnostics, Computer Diagnostic Trouble Tree Charts, Computer Diagnostic Codes
Body And Accessories:
Sunroof
Climate Control:
Air Conditioning Service and Capacities
Maintenance:
Factory Maintenance Schedules and Charts, Driving Concerns
Repair:
Repair Procedures, Complete Disassembly Steps
Diagnostics:
Troubleshooting, Diagnostic Trouble Trees, Trouble Codes
Depth:
Comprehensive, covering everything from basic maintenance to complete engine rebuilding and advanced diagnostics.
Visuals:
Detailed illustrations, exploded diagrams, drawings, and photos.
Data Type:
Step-by-step instructions, detailed specifications, torque specifications.
Engine Type:
Rotary (Wankel)
Engine Code Designation:
Rotary, typically described by displacement in cc (e.g., 1.3L or 1300cc equivalent).
Displacement:
Rotary 1300cc (2 x 655cc rotors)
Horsepower Est 1970:
~110-125 hp (depending on specific engine variant and tuning)
Torque Est 1970:
~110-120 lb-ft (depending on specific engine variant and tuning)
Fuel Delivery:
Carbureted (typically a two-barrel carburetor, potentially dual carburetors on performance variants).
Fuel Type:
Unleaded Gasoline (though leaded gasoline may have been common in 1970, manual will specify recommended fuel).
Timing Method:
Rotary engine timing is critical; manual covers timing belt (or chain depending on specific design) replacement.
Rebuild Details:
Engine Overhaul and Rebuilding procedures, including apex seal replacement, rotor housing resurfacing, and component reassembly.
Transmission Type:
Manual Transmission (likely 4-speed or 5-speed)
Transmission Type:
Automatic Transmission (availability may vary by market and specific model variant).
Service Procedures:
Transmission Removal and Installation, In-Car Servicing, Fluid Capacities and Specifications.
Oil Change Interval:
Typically every 3,000-5,000 miles, but consult the specific manual for exact intervals and oil type.
Spark Plug Service:
Specific intervals for rotary spark plugs will be detailed in the manual, which may differ from piston engines.
Engine Oil Type:
API SF or SG classification, specific viscosity (e.g., 10W-30 or 20W-50) will be in the manual.
Coolant Type:
Ethylene Glycol based coolant, 50/50 mix with distilled water recommended. Capacity will be specified.
Transmission Fluid:
Manual transmission fluid type (e.g., GL-4 rated gear oil) and capacity will be specified. Automatic transmission fluid type (e.g., Dexron) will also be listed if applicable.
Rotary Specific Wear:
Apex seal wear is a common concern in older rotary engines, leading to compression loss. Manual provides procedures for checking and replacing.
Carburetor Tuning:
Carburetors from this era often require periodic adjustment and cleaning for optimal performance.
Cooling System:
Rotary engines can be sensitive to overheating; maintaining the cooling system is crucial.
Mazda Rotary Introduction:
Mazda pioneered the production of Wankel rotary engines in passenger cars, beginning with the Cosmo Sport (1967) and continuing with models like the RX-2.
Rx2 Positioning:
The RX-2 was positioned as a sporty compact car, distinguishing itself with its unique rotary engine, offering smooth operation and higher RPM capabilities compared to conventional piston engines.
Production Period:
The RX-2 was produced from 1970 to 1978. The 1970 model marks its initial introduction.
Manufacturing Location:
Japan
Rotary Engine Recognition:
The Wankel rotary engine itself received significant attention and accolades for its innovative design and smooth operation during its early production years.
Contemporary Reviews:
Contemporary reviews often praised the RX-2 for its spirited performance, unique engine, and stylish (for the era) design, though fuel economy and maintenance were sometimes noted as considerations.
