Target Audience:
Alfa Romeo Alfetta owners, mechanics, enthusiasts seeking detailed repair and maintenance information.
Uniqueness:
Make, model, and year specific, offering detailed workshop-level content often missing in generic manuals.
Ease Of Use:
Easy-to-follow instructions, step-by-step diagrams.
Completeness:
Covers all aspects of repair and maintenance from basic to advanced.
Diagram Quality:
Clear, step-by-step diagrams aiding in complex procedures.
Engine:
Complete engine overhaul, timing, fuel injection, carburetion (depending on variant), ignition, cooling, lubrication.
Transmission:
Gearbox (transaxle), clutch, sub-transmission (transaxle), final drive, driveshafts.
Suspension:
Front suspension (double wishbone), rear suspension (de Dion axle, trailing arms, Watt's linkage), shock absorbers, springs.
Brakes:
Hydraulic brake system, master cylinder, wheel cylinders, calipers, parking brake.
Electrical:
Battery, charging system (alternator), starter motor, ignition system, lighting, switches, wiring diagrams.
Bodywork:
General information, inspection, adjustment, potentially some body repair procedures.
Maintenance:
Lubrication, fluid changes, filter replacements, general inspections and adjustments.
Repair:
Engine rebuild, transmission overhaul, brake system repair, suspension component replacement, electrical component repair.
Diagnostics:
Troubleshooting guides for common issues, diagnostic steps for various systems.
Engine Removal Installation:
Detailed procedure for removing and reinstalling the engine and gearbox assembly.
Depth:
Comprehensive coverage from basic maintenance to full workshop-level repairs and rebuilds.
Specific Procedures:
Engine compression testing, valve clearance adjustment, carburetor synchronization, fuel pump pressure checks, brake caliper rebuilding, rear axle bearing replacement, steering box adjustment.
Electrical Diagrams:
Comprehensive wiring diagrams for various electrical circuits, essential for troubleshooting.
Engine Families:
Alfa Romeo Twin Cam Inline-4 (various displacements), V6 Busso engine (later models, though likely less emphasis in earlier year coverage).
Engine Variants Covered:
1.6L, 1.8L, 2.0L Twin Cam; 2.5L V6 (likely for later models within the range).
Horsepower Range:
Approx. 90 hp (1.6L) to 150 hp (2.5L V6).
Torque Range:
Approx. 130 Nm to 206 Nm.
Fuel Delivery Methods:
Carbureted (e.g., Dell'Orto, Weber) and Spica mechanical fuel injection (early models), Bosch L-Jetronic or similar electronic fuel injection (later models).
Camshaft Drive:
Dual overhead camshafts (DOHC) driven by chains.
Engine Layout:
Front-engine, rear-wheel drive with transaxle configuration.
Gearbox Type:
5-speed manual transaxle (gearbox and differential combined at the rear).
Automatic Transmission:
Rare, but possibly available on some later variants or specific markets.
Transaxle Layout:
Rear-mounted transaxle contributes to near 50/50 weight distribution.
Clutch Type:
Single dry plate diaphragm spring clutch.
Gearbox Oil Type:
API GL-4 or GL-5, SAE 75W-90 or 80W-90 (specific viscosity may vary, consult manual for exact spec).
Body Styles:
Berlina (4-door sedan), GT (2-door coupe), Spider (2-seater convertible).
Wheelbase:
Approx. 2510 mm (98.8 inches).
Track Width Front:
Approx. 1365 mm (53.7 inches).
Track Width Rear:
Approx. 1375 mm (54.1 inches).
Curb Weight:
Approximately 1100-1300 kg (2425-2866 lbs) depending on body style and engine.
Construction:
Unibody construction with crumple zones.
Crash Test Data:
Limited official crash test data available for this era, but designed with contemporary safety standards in mind.
Braking System:
Girling disc brakes front and rear, often with servo assistance. Inboard rear disc brakes on some models.
Oil Change Interval:
Typically every 5,000-7,500 km (3,000-5,000 miles) or 6-12 months (subject to driving conditions and oil type).
Timing Belt Replacement:
N/A (Timing chain driven engines).
Engine Oil Type:
SAE 10W-40 or 20W-50, API SG or higher recommended (refer to manual for specific recommendations).
Coolant Type:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4.
Rust Prone Areas:
Wheel arches, sills, door bottoms, rear panel, front strut towers.
Common Mechanical Issues:
Carburetor tuning, Spica fuel injection system maintenance, clutch wear, gearbox synchro issues, front suspension wear, cooling system leaks.
Electrical Issues:
Aging wiring harnesses, switch failures, alternator/regulator issues.
Engine Oil Consumption:
Can be characteristic of older Alfa Romeo Twin Cam engines, especially if worn.
Alfa Romeo Legacy:
Continued Alfa Romeo's tradition of sporting sedans and coupes with innovative engineering.
Key Innovations:
Transaxle layout for balanced weight distribution, De Dion rear axle, independent front suspension.
Design Influence:
Designed by Marcello Gandini of Bertone for the coupe and Pininfarina for the sedan.
Production Period:
1972-1986 (with variations in model designations and updates).
Manufacturing Locations:
Italy (primarily Milan).
