Target Market:
Owners and independent repair shops specializing in classic Alfa Romeo vehicles, specifically the 75 model.
Value Proposition:
Provides dealership-level technical information accessible to independent technicians and knowledgeable owners, enabling cost savings and improved service quality.
Accuracy:
Emphasizes reliable information derived from authorized dealer service departments.
Emphasis On Safety:
Includes explicit warnings and cautions for safe repair practices.
Completeness:
Covers all necessary instructions for any repair the vehicle may require.
Applicable Model Years:
1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992
Regional Availability:
Global (likely based on common repair procedures)
Estimated Page Count:
Extensive (not specified, but implied by comprehensive coverage)
Type:
Workshop Service Repair Manual
Intended Audience:
Professional Mechanical Technicians, Experienced DIY Enthusiasts
Delivery Method:
Electronic (Email)
Powertrain:
Specific sections for engine tuning, carburetor and fuel injection system repair, clutch and flywheel replacement, manual transaxle overhaul.
Chassis:
Suspension, Steering, Brakes, Wheels, Tires
Electrical:
Detailed wiring diagrams for all electrical systems, including fuse box layouts, component testing procedures for alternator, starter, ignition coil, and control modules.
Body:
Exterior Panels, Interior Trim, Doors, Windows, Seats, HVAC System
Maintenance:
Routine Servicing, Oil Changes, Filter Replacements, Tune-Ups, Fluid Checks
Diagnostics:
Troubleshooting Guides, Symptom-Based Diagnostics, Component Testing
Repair Overhaul:
Component Disassembly, Reassembly, Adjustment, Replacement
Technical Procedures:
Engine Rebuilds, Transmission Overhauls, Suspension Component Replacement, Electrical System Repairs
Engine Specific:
Engine timing adjustment, valve clearance adjustment, piston and connecting rod installation, crankshaft main bearing replacement, cylinder head removal and installation.
Bodywork:
Procedures for door panel removal, window regulator repair, seat removal for access, HVAC system diagnostics and component replacement.
Depth:
Comprehensive: From basic maintenance to complete engine and transmission disassembly and overhaul. Includes specific procedures for proprietary components.
Diagnostic Tools:
References to specialized Alfa Romeo tools and recommended general automotive tools (e.g., torque wrench, multimeter, compression tester).
Component Manufacturer Instructions:
Incorporates repair guidelines for proprietary components, ensuring accurate reassembly and function assessment.
Engine Family:
Alfa Romeo Twin Cam (Nord)
Common Engine Displacement Options:
1.6L (1570cc), 1.8L (1779cc), 2.0L (1962cc), 3.0L V6 Busso
Engine Configuration:
Inline-4 (Twin Cam), V6 (Busso)
Engine Type:
Naturally Aspirated, Fuel Injected (later models) / Carbureted (earlier models)
Horsepower Range:
Approximately 105-128 hp (4-cyl), 185-192 hp (V6)
Torque Range:
Approximately 130-160 Nm (4-cyl), 240-250 Nm (V6)
Fuel Delivery:
Weber Carburetors (e.g., 40 DCOM, 45 DCOM), Bosch L-Jetronic Fuel Injection
Crash Test Performance:
Limited data available from official agencies for this era. Design predates modern standardized crash testing.
Braking System:
Front Disc Brakes, Rear Disc Brakes (often inboard on some models for reduced unsprung weight).
Suspension Design:
De Dion rear axle (a sophisticated design for its time, improving handling and reducing unsprung mass).
Seatbelts:
Standard seatbelts, potentially with pre-tensioners on later models.
Oil Change Interval:
Typically 5,000 - 10,000 km (3,000 - 6,000 miles) or annually, depending on usage and oil type.
Tune Up Interval:
Every 20,000 - 40,000 km (12,000 - 24,000 miles) for spark plugs, distributor settings (if applicable).
Engine Oil Type:
API SG or SH, SAE 10W-40 or 15W-50 (check manual for specific engine variants).
Coolant Type:
Ethylene glycol-based antifreeze, typically a 50/50 mix with distilled water.
Transmission Fluid:
GL-4 Gear Oil, SAE 75W-90 or 80W-90.
Electrical System:
Corrosion in connectors, aging wiring harnesses, faulty relays, and aging alternator/starter components.
Engine:
Carburetor tuning issues, distributor wear, camshaft wear (especially on high-mileage Twin Cams), potential head gasket leaks on V6.
Rust:
Prone to rust in sills, wheel arches, and floor pans, especially in humid climates.
Suspension:
Wear in bushings, ball joints, and tie rod ends, particularly with the advanced De Dion rear axle requiring specific care.
Maintenance Recommendations
Torque Wrench Usage:
Essential for ensuring fasteners are tightened to precise specifications, critical for engine and chassis components.
Manufacturer Origin:
Italy
Brand Philosophy:
Known for sporty driving dynamics, distinctive Italian styling, and performance-oriented engines.
Predecessor:
Alfa Romeo Giulietta (Type 116)
Successor:
Alfa Romeo 155
Design Inspiration:
Shared platform and components with the Alfa Romeo Alfetta and Giulietta.
Production Locations:
Italy
Total Production Numbers:
Around 377,000 units produced across all variants.
