🏷️ Basic Information Identification Make: Holden Model: HQ, HJ, HX, HZ Product Type: Workshop Service Repair Manual Product Format: Downloadable Digital File 👋 Introduction Market Position Target Audience: DIY mechanics, restorers, Holden enthusiasts, and professional workshops. Competitive Analysis Advantage Over Alternatives: Provides a single, comprehensive digital resource covering the entire HQ-HZ generation, unlike scattered official bulletins or older printed manuals. Key Features Ease Of Use: Step-by-step instructions and clear imagery make complex repairs accessible. Cost Savings: Enables significant savings on labour costs by empowering owners to perform their own maintenance and repairs. Accessibility: Downloadable to various devices (PC, Mac, tablet, smartphone) for convenient reference. Lifetime Access: Once downloaded, the manual is owned permanently by the user. 📋 Manual Details Coverage Areas Overall Coverage: All models, engines, trim levels, and transmission types within the HQ-HZ series. Engine Coverage: Six-cylinder (Red, Blue, Black) and V8 (920, 253, 308, 350, 427) engine variants. Transmission Coverage: Manual (3-speed, 4-speed) and Automatic (2-speed, 3-speed Trimatic) transmissions. Page Count Estimated Page Count: Comprehensive (specific number not provided, implies extensive coverage A-Z). Manual Type Manual Classification: Workshop Service Repair Manual Language Language Of Manual: English Format Digital Format: PDF (requires Adobe Reader) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder heads, blocks, pistons, crankshafts, camshafts, timing, lubrication systems, cooling systems, fuel delivery systems. Engine Fuel System: Carburettor overhaul (Stromberg, Rochester Quadrajet, Holley), fuel pumps, fuel lines, fuel tanks. Transmission Drivetrain: Manual gearbox repair, clutch replacement, automatic transmission service (Trimatic), driveshafts, differentials, axles. Suspension Steering: Front and rear suspension components, shock absorbers, springs, bushings, steering box, power steering systems, tie rods, ball joints. Brakes: Brake system diagnostics, hydraulic systems, master cylinders, wheel cylinders, brake shoes, brake pads, disc brake systems, drum brake systems, parking brake. Electrical System: Ignition systems, starting systems, charging systems (alternators, generators), batteries, lighting systems, wiring diagrams, instrumentation. Body Chassis: Body panel removal and installation, rust repair, interior trim, exterior trim, doors, windows, seats, chassis lubrication. Heating Ventilation Air Conditioning: Heater core service, blower motor, ducting, (limited AC coverage likely for period). Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid level checks, tune-ups, spark plug replacement, belt adjustments. Major Repairs: Engine overhauls, transmission rebuilds, brake system overhauls, suspension component replacement, differential rebuilds. Troubleshooting: Diagnostic procedures for common and uncommon faults across all systems. Component Removal Installation: Step-by-step guides for removing and refitting all major and minor components. Specifications Data: Torque specifications, clearances, fluid capacities, electrical specifications, timing settings. Technical Depth Depth Of Information: Comprehensive, covering basic maintenance to complete engine and transmission rebuilds. Includes detailed diagrams and illustrations. 📊 Manual Specifications File Format File Type: PDF Software Requirement: Adobe Reader (free download) Print Quality Printability: Printable in full or in part. High-quality digital reproduction of original documentation. Binding Type Binding For Digital: N/A (Digital Download) Paper Type Paper Type For Digital: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Common Six Cylinder Engines: 173 cu in (2.8L), 186 cu in (3.0L), 202 cu in (3.3L) - Red, Blue, and Black series. Common V8 Engines: 253 cu in (4.2L), 308 cu in (5.0L), 350 cu in (5.7L), 427 cu in (7.0L) - Chevrolet sourced for some models. Performance Horsepower Range: Varies significantly by engine, from approx. 114 hp (173ci) to over 300 hp (350ci HO, 427ci). Torque Range: Varies significantly by engine, from approx. 170 lb-ft (173ci) to over 400 lb-ft (427ci). Fuel System Carburettor Types: Single barrel (Stromberg), Twin barrel (Stromberg, Rochester), Four barrel (Rochester Quadrajet, Holley). Fuel Type: Unleaded petrol (later models), Leaded petrol (early models). 🔧 Transmission Standard Standard Transmission Options: 3-speed manual, 4-speed manual. Optional Optional Transmission Options: 2-speed Powerglide (early HQ), 3-speed Trimatic automatic (HQ, HJ, HX, HZ). Features Clutch Type: Single dry plate diaphragm type (manual). Automatic Transmission Details: Trimatic TH350/TH400 based, requiring specific fluid and service procedures. 📐 Dimensions Exterior Body Styles: Sedan (4-door), Station Wagon (5-door), Coupe (2-door - Monaro), Ute (2-door utility), Van (2-door panel van). Wheelbase Range: Approx. 108 inches (sedan/coupe) to 114 inches (station wagon). Weights Kerb Weight Range: Approx. 2,700 lbs (1225 kg) for base models up to 3,500 lbs (1590 kg) for V8 station wagons/coupes. 🛡️ Safety Features Ratings Historical Safety Standards: Reflects safety standards of the 1970s. Features like seatbelts (front standard, rear optional depending on year/model), padded dashboards, collapsible steering columns. Active Features Braking System: Front disc brakes standard on most models, rear drum brakes. Power assistance often optional or standard on higher trims/V8s. Passive Features Restraint Systems: Lap-diagonal seat belts (front), lap belts (rear, often optional). 💡 Technology Features Infotainment Factory Audio Systems: AM/FM radios, often with AM/FM/SW capabilities. Cassette players became available later in the HZ series as an option. Driver Assistance Available Features: Power steering (optional on many models), front disc brakes (often power assisted). Connectivity Connectivity Options: None in the modern sense; basic wired...