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Binding Type
Binding:
Digital (PDF)
Paper Type
Paper Type Digital:
N/A (Printable PDF)
Delivery
Delivery Method:
Instant Download
âī¸ Engine Specifications
Primary Engine
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)
Performance
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 System
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).
Maintenance
Timing Method:
Rotary engine timing is critical; manual covers timing belt (or chain depending on specific design) replacement.
Rebuilding
Rebuild Details:
Engine Overhaul and Rebuilding procedures, including apex seal replacement, rotor housing resurfacing, and component reassembly.
đ§ Transmission
Standard
Transmission Type:
Manual Transmission (likely 4-speed or 5-speed)
Optional
Transmission Type:
Automatic Transmission (availability may vary by market and specific model variant).
Features
Service Procedures:
Transmission Removal and Installation, In-Car Servicing, Fluid Capacities and Specifications.
đ Dimensions
Exterior
Body Styles:
Typically offered as a Coupe and Sedan.
Weights
Curb Weight Est:
~2,200 - 2,400 lbs (depending on body style and equipment).
đĄī¸ Safety Features
Ratings
Crash Testing:
As a 1970 vehicle, formal crash test ratings from modern agencies are not applicable. Safety features are limited by the era.
Passive Features
Features 1970:
Seat belts (likely lap belts), safety glass, padded dashboard elements (basic for the time).
đĄ Technology Features
Infotainment
Features 1970:
Basic AM radio (optional), manual climate controls (heater/defroster).
Driver Assistance
Features 1970:
None by modern standards. Basic braking systems (likely front disc, rear drum).
đ§ Maintenance
Service Intervals
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.
Fluid Specifications
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.
Known Issues
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.
đ Vehicle History
Brand Heritage
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.
Model Evolution
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
Production Period:
The RX-2 was produced from 1970 to 1978. The 1970 model marks its initial introduction.
Manufacturing Location:
Japan
đ Awards & Recognition
Recognitions
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.
Ratings
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.
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