Target Audience:
Mazda RX-7 owners and mechanics specializing in vintage rotary engine vehicles and their climate control systems.
Uniqueness:
As a specialized manual for a specific component of a classic car, it offers highly targeted information not found in general manuals.
Rarity:
Described as 'RARE', indicating its scarcity and value to enthusiasts.
Component Focus:
Dedicated to a critical but often complex part of the vehicle's comfort system.
Cooling System:
Focus on the A/C compressor, refrigerant lines, clutch operation, and related components.
Electrical System:
Wiring diagrams specific to the A/C compressor clutch and control circuits.
Mechanical Components:
Detailed information on the compressor unit itself, its mounting, and drive belt.
Installation:
Instructions for the proper installation of the A/C compressor.
Removal:
Step-by-step guidance for removing the A/C compressor.
Diagnostics:
Troubleshooting steps for compressor malfunction, clutch engagement issues.
Refrigerant Handling:
While not a full A/C service manual, it may touch upon proper handling related to the compressor.
Depth:
Specialized information for mechanics and technicians focusing on the A/C compressor component.
Diagnostic Focus:
Specific diagnostic procedures and fault codes related to compressor performance.
Engine Type:
Rotary (Wankel)
Displacement Cc:
1146 cc (two rotor)
Induction:
Carbureted (e.g., Hitachi twin-choke or Nikki twin-choke)
Horsepower Hp:
Approx. 100-110 hp @ 6500 rpm
Torque Lb Ft:
Approx. 103-111 lb-ft @ 3500 rpm
Fuel Type:
Unleaded gasoline
Fuel Octane Rating:
Premium (91+ RON/87 AKI recommended)
Federal Motor Vehicle Safety Standards:
Compliance with FMVSS standards in effect for 1980, including passive restraint systems (manual seat belts).
Brakes:
Front: Ventilated discs; Rear: Drums.
Steering:
Recirculating ball steering
Seat Belts:
3-point inertia reel seat belts
Oil Change:
Every 3,000 miles or 3 months (Rotary specific oil and frequent changes are critical).
Air Filter:
Every 15,000 miles or 12 months.
Spark Plugs:
Every 15,000 miles (Rotary engines use two spark plugs per rotor).
Engine Oil:
API SG or higher, SAE 10W-30 or 10W-40 (Rotary-specific oil with adequate ZDDP is highly recommended).
Coolant:
Ethylene glycol-based, 50/50 mix with distilled water.
Transmission Fluid Manual:
API GL-4, SAE 75W-90 or 80W-90 gear oil.
Transmission Fluid Automatic:
Dexron III/Mercon compatible automatic transmission fluid.
Brake Fluid:
DOT 3 or DOT 4.
Clutch Fluid:
DOT 3 (same as brake fluid).
Apex Seals:
Wear and failure of apex seals are a hallmark issue of rotary engines, leading to compression loss.
Carburetor Issues:
Clogged jets, vacuum leaks, and tuning issues common with older carburetors.
Oil Consumption:
Rotary engines inherently consume oil as part of their lubrication system; proper topping up is crucial.
Rust And Corrosion:
Common for vehicles of this age, especially in regions with salt on roads.
Oil Filter:
e.g., Mazda 8177-14-302, Fram PH3600, Wix 51085
Air Filter:
e.g., Mazda AF91-13-320, Fram CA227
Rotary Legacy:
Mazda's pioneering work with the Wankel rotary engine, starting with the Cosmo.
Rx7 Introduction:
Launched in 1978 as Mazda's first sports car with a rotary engine.
First Generation:
The SA22C generation (1978-1983) established the RX-7 as a stylish, affordable, and performance-oriented sports coupe.
Production Years:
First Generation: 1978-1983
Assembly Location:
Hofu, Yamaguchi, Japan
