🏷️ Basic Information

Make:

Ferrari

Model:

308 GT4

Model Designation:

308 GT4 (also known as Dino 308 GT4)

Chassis Code:

Tipo F106 AL

Generation Name:

First Generation

Production Years Covered By Manual:

1973-1980

👋 Introduction

Market Position:

The Ferrari 308 GT4 represented a significant departure for Ferrari, being the first mid-engined V8 production car and the first Ferrari designed by Bertone. It aimed to offer a more practical yet high-performance GT car with a 2+2 seating configuration.

Competitive Analysis:

Competed against other Italian performance cars of the era like Lamborghini Urraco, as well as higher-end models from Porsche and American muscle cars in terms of performance, though its unique styling and V8 powertrain set it apart.

Key Features:

Mid-engined V8 layout, Pininfarina styling (though designed by Bertone), 2+2 seating, 4-wheel independent suspension, robust V8 engine known for its torque.

Manual Utility:

Essential for owners and technicians seeking to maintain, repair, and troubleshoot the Ferrari 308 GT4, providing detailed OEM-level instructions and specifications.

📋 Manual Details

Coverage Areas:

Engine, Lubrication, Cooling, Fuel system, Clutch, Gearbox, Steering, Suspension, Brake, Wheels and Tyres, Electric System, Body, Emission Control, and more.

Page Count:

Estimated 500+ pages (typical for factory service manuals of this era).

Manual Type:

Factory Service and Repair Manual

Language:

English

Format:

PDF (Downloadable)

Manual Type Description:

This is a workshop manual intended for technicians and experienced DIY mechanics, containing detailed exploded views, diagnostic procedures, and step-by-step repair instructions for all major vehicle systems.

📖 Manual Coverage

Systems Covered:

Engine mechanical, lubrication system, cooling system, fuel injection system (Bosch K-Jetronic), ignition system, clutch assembly, gearbox (manual transmission), differential, driveshafts, steering system, front and rear suspension, hydraulic brake system, electrical system (wiring diagrams, components), charging system, starting system, lighting, instrumentation, body construction, climate control, emission control systems, troubleshooting, diagnostics, and routine maintenance procedures.

Procedures Included:

Engine disassembly and assembly, valve adjustment, timing belt replacement, carburetor/fuel injection tuning, clutch replacement, gearbox overhaul, suspension component replacement, brake caliper rebuilding, electrical component testing and replacement, body panel alignment, chassis lubrication, fluid changes, tune-up procedures, diagnostic flowcharts.

Technical Depth:

Comprehensive, covering from basic maintenance tasks to complete engine and transmission rebuilds, detailed troubleshooting guides, and specific torque specifications for all critical fasteners.

Specific Procedures Included:

Detailed steps for engine tune-ups, fuel system pressure testing, ignition timing adjustment, brake system bleeding, suspension alignment specifications, gearbox oil level checks and changes, electrical troubleshooting using wiring diagrams.

Wiring Diagrams:

Includes comprehensive electrical system wiring diagrams, illustrating circuits for ignition, lighting, instrumentation, fuel system, starting, charging, and accessories.

📊 Manual Specifications

File Format:

PDF

Compatibility:

All Versions of Windows & Mac

Requirements:

Adobe PDF Reader

Print Quality:

High-resolution scans of original factory documentation, ensuring clarity of diagrams and text.

Binding Type:

Digital (Downloadable PDF)

Paper Type:

Not Applicable (Digital Format)

Searchable Text:

Yes, the PDF format typically allows for text searching of technical terms and component names.

⚙️ Engine Specifications

Engine Type:

DOHC V8

Displacement:

2997 cc (3.0 Liters)

Bore X Stroke:

81 mm x 73 mm

Compression Ratio:

9.2:1 (early models), 10.2:1 (later models)

Horsepower Peak Early Models:

230 hp (172 kW) at 6600 rpm

Horsepower Peak Later Models:

240 hp (179 kW) at 6600 rpm

Torque Peak Early Models:

205 lb-ft (278 Nm) at 5000 rpm

Torque Peak Later Models:

210 lb-ft (285 Nm) at 5000 rpm

Fuel Delivery:

Bosch K-Jetronic Fuel Injection

Ignition Type:

Distributorless Ignition System (DIS) with dual ignition coils on later models, early models used a traditional distributor.

Cooling Type:

Water-cooled, front-mounted radiator with electric fans.

Oil Type Recommendation:

SAE 20W-50 or 10W-40 (refer to manual for exact OEM specifications).

Engine Code:

F106 AB (early), F106 BB (later)

Engine Code Description:

F106 AB refers to the early 2-valve per cylinder engines, while F106 BB denotes the later 4-valve per cylinder (16-valve) engines found in the 308 GT4.

Valvetrain Configuration:

Dual Overhead Camshafts (DOHC), 2 valves per cylinder (early) or 4 valves per cylinder (later 16-valve versions).

🔧 Transmission

Transmission Type:

5-Speed Manual Transaxle

Optional Transmission:

None offered from factory.

Gear Ratios:

Refer to manual for specific gear ratios for each gear and final drive.

Transaxle Layout:

Mid-engine, rear-wheel drive with integrated gearbox and differential.

Transmission Fluid Type:

Hypoid Gear Oil SAE 80W-90 (API GL-4 or GL-5, check manual for specific recommendation).

📐 Dimensions

Length:

4400 mm (173.2 in)

Width:

1750 mm (68.9 in)

Height:

1135 mm (44.7 in)

Wheelbase:

2340 mm (92.1 in)

Curb Weight:

Approximately 1500 kg (3307 lbs)

Gross Vehicle Weight Rating:

Refer to VIN plate or manual.

Wheel Bolt Pattern:

5 x 108 mm

Standard Tire Size Front:

205/70 VR 14 (typical, may vary)

Standard Tire Size Rear:

205/70 VR 14 (typical, may vary)

Standard Wheel Size:

14 x 7.0J (typical, may vary)

🛡️ Safety Features

Safety Ratings:

No formal crash test ratings available from modern agencies due to the era of production.

Active Features:

Four-wheel disc brakes (ventilated front and rear).

Passive Features:

Three-point seat belts, padded dashboard, reinforced safety cage around the cabin.

💡 Technology Features

Infotainment System:

Basic analog instrumentation, typically a high-quality analog radio and speaker system of the era. No advanced infotainment features.

Driver Assistance Features:

None.

Connectivity Options:

None.

Engine Management System:

Mechanical fuel injection (Bosch K-Jetronic) and mechanical ignition advance.

🔧 Maintenance

Oil Change Interval:

Every 3,000 - 5,000 miles or annually (refer to manual for specific mileage).

Timing Belt Replacement Interval:

Every 30,000 miles or 3 years (critical due to interference engine design).

Tune Up Interval:

Recommended annually or every 12,000 miles, focusing on ignition timing, fuel mixture, and valve clearances.

Coolant Capacity And Type:

Approx. 12-14 liters of a 50/50 mix of ethylene glycol antifreeze and distilled water (refer to manual for exact type).

Brake Fluid Type:

DOT 3 or DOT 4 (check manual for specification).

Common Issues:

Carburetor/fuel injection tuning difficulties, aging electrical components, rust susceptibility in certain areas, wear on suspension bushings, clutch wear, and potential for camshaft wear if lubrication is neglected.

Common Issues Detailed:

K-Jetronic fuel system can be sensitive to component wear and proper adjustment. Ignition system components can degrade over time. Bodywork and chassis require regular inspection for corrosion. Cooling system hoses and connections are prone to aging.

Engine Oil Capacity:

Approx. 8.7 liters (9.2 US quarts) with filter change (refer to manual for exact capacity).

Gearbox Oil Capacity:

Approx. 3.5 liters (3.7 US quarts) (refer to manual for exact capacity).

📚 Vehicle History

Brand Heritage:

Ferrari has a legendary history in motorsport and high-performance road cars, known for its V12 engines and racing pedigree. The 308 GT4 marked a significant shift towards V8 power for their road cars.

Model Evolution:

The 308 GT4 was initially marketed as the 'Dino 308 GT4' to differentiate it from the V12 Ferraris. It was the successor to the Dino 246 GT/GTS and the first Ferrari designed by Marcello Gandini of Bertone, featuring a more angular, wedge-shaped design.

Production Period:

1973-1980

Production Numbers:

Approximately 2,826 units produced worldwide.

Manufacturing Location:

Maranello, Italy

Design Influence:

The angular, wedge-shaped design by Marcello Gandini for Bertone proved controversial for some Ferrari purists but established a significant design trend in the 1970s and influenced subsequent mid-engined sports cars.

🏆 Awards & Recognition

Recognitions:

While not awarded specific 'Car of the Year' titles in the modern sense, the 308 GT4 is recognized for its pioneering V8 mid-engine layout for Ferrari and its distinctive Bertone styling which influenced future supercar designs.