Engine Mechanical:
Rotary engine internals, rotor housing, apex seals, side seals, oil seals, eccentric shaft, lubrication system, cooling system, exhaust system
Fuel System:
Carburetor(s) (e.g., Hitachi/Aisan), fuel pump, fuel lines, fuel tank, emission control systems (e.g., air injection, EGR - depending on market)
Ignition System:
Distributor, ignition coil, spark plugs, ignition timing, breaker points/electronic ignition (later models)
Transmission Manual:
Gearbox assembly, clutch, shift linkages, lubrication, overhaul procedures
Transmission Automatic:
Automatic gearbox (if applicable), torque converter, hydraulic control, overhaul procedures
Drivetrain:
Rear axle, differential, driveshafts, wheel bearings, propellor shaft
Suspension Front:
Independent front suspension (e.g., MacPherson strut or coil spring/wishbone), steering knuckle, control arms, bushings, shock absorbers
Suspension Rear:
Leaf spring (common on early models) or coil spring live axle, shock absorbers, trailing arms
Steering:
Steering box/rack and pinion, steering column, tie rods, steering wheel, power steering system (if equipped)
Brakes Front:
Disc brake system, calipers, pads, rotors, brake lines, master cylinder
Brakes Rear:
Drum brake system (common) or disc brake system, wheel cylinders, shoes, drums, brake lines, parking brake system
Electrical System:
Wiring diagrams, battery, alternator/generator, starter motor, lighting system (headlights, taillights, interior), horn, fuses, relays, dashboard instrumentation
Body And Chassis:
Body panel removal/installation, door mechanisms, window regulators, interior trim, seat adjustment, chassis lubrication, frame specifications
Heating And Ventilation:
HVAC system components, blower motor, heater core, ducting, controls
Preventive Maintenance:
Oil changes, filter replacements, spark plug checks, coolant flushes, brake fluid checks, belt adjustments, lubrication points
Routine Repairs:
Brake pad/shoe replacement, clutch adjustment, carburetor tuning, minor engine tune-ups, light bulb replacement
Major Engine Repairs:
Engine disassembly and reassembly, apex seal replacement, eccentric shaft bearing replacement, rotor housing lapping/resurfacing (potentially)
Transmission Overhaul:
Complete gearbox disassembly, inspection, component replacement, and reassembly for both manual and automatic transmissions
Suspension And Steering Repair:
Bushings replacement, shock absorber replacement, ball joint replacement, tie rod end replacement, steering box adjustment
Brake System Repair:
Brake caliper rebuild, master cylinder replacement, wheel cylinder replacement, brake line flaring and replacement, bleeding procedures
Electrical Troubleshooting:
Diagnostic procedures using wiring diagrams, testing of charging system, starting system, lighting circuits, and accessories
Bodywork And Interior:
Body panel alignment, door lock repair, window mechanism repair, seat and trim component replacement
Emission Control System Service:
Maintenance and troubleshooting of air injection, EGR, and other emission control devices specific to the model year and market
Diagnostic Information:
Troubleshooting charts, symptom-based diagnostics, component testing specifications
Torque Specifications:
Detailed torque values for all critical fasteners across engine, chassis, and drivetrain components
Clearances And Tolerances:
Precise measurements for engine component assembly (e.g., apex seal clearance, rotor end float), bearing clearances
Wiring Diagrams:
Comprehensive electrical schematics for all vehicle systems, often color-coded for clarity
Special Tools:
Identification of required special tools for specific procedures, often with diagrams or part numbers
Rebuild Procedures:
Detailed step-by-step instructions for complete engine, transmission, and carburetor rebuilds
Engine Oil Change:
Every 3,000 miles (5,000 km) or 3 months, whichever comes first (typical for the era, especially with rotary engines).
Oil Filter Change:
With every oil change.
Spark Plug Check:
Every 6,000 miles (10,000 km) or as specified by manual, checking for wear and proper gap.
Coolant Flush:
Every 12,000-24,000 miles (20,000-40,000 km) or 1-2 years, using appropriate coolant.
Lubrication Points:
Chassis lubrication every 6,000 miles (10,000 km).
Engine Oil Type:
API SF/CD or equivalent, viscosity typically SAE 10W-30 or 10W-40 (check manual for exact spec; rotary-specific oils might be recommended for specific applications).
Transmission Fluid Manual:
API GL-4 Gear Oil, SAE 75W-90 or 80W-90.
Transmission Fluid Automatic:
Dexron II or equivalent Automatic Transmission Fluid (ATF).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Coolant Type:
Ethylene glycol based antifreeze/coolant, mixed with distilled water (50/50 ratio recommended).
Rotary Oil Injection:
Specific two-stroke pre-mix oil or dedicated rotary injection oil, often mixed with fuel or injected via a separate pump. Crucial for apex seal lubrication. Consult manual for specific type.
Apex Seal Wear:
The most critical wear item in a Wankel engine. Can lead to compression loss, hard starting, and power reduction. Requires rebuild.
Carburetor Issues:
Wear in throttle shafts, diaphragm leaks, and jet clogging can affect fuel delivery and performance. Carburetor rebuilds are common.
Oil Consumption:
Rotary engines inherently consume some oil for lubrication. Excessive consumption indicates seal issues.
Cooling System Overheating:
Due to compact engine bay and the nature of rotary heat, cooling system maintenance is paramount. Radiator, hoses, and thermostat integrity are key.
Ignition Component Wear:
Points and condensers (if fitted) require regular adjustment. Coil and distributor wear can also impact performance.
