🏷️ Basic Information

Make:

Daihatsu

Model:

Hijet S85

Chassis Code:

S85

Generation Designation:

Fifth Generation (1986-1994)

👋 Introduction

Market Position:

Specialty commercial vehicle, light utility van/truck, valued for reliability and efficiency in its class.

Target Audience:

Small businesses, tradespeople, delivery services, agricultural use, and individuals requiring a compact, economical utility vehicle.

Competitive Analysis:

Competed with similar Japanese kei-truck and van derivatives from manufacturers like Suzuki (Carry), Subaru (Sambar), and Mitsubishi (Minicab). The Hijet typically offered a balance of utility, fuel efficiency, and compact maneuverability.

Key Features:

Compact size, rear-wheel drive or 4WD options, diesel engine for fuel economy, versatile cargo space, robust and simple mechanical design.

Durability:

Renowned for its robust construction, making it a reliable workhorse for demanding applications.

📋 Manual Details

Coverage Areas:

All models, all engine types, mechanical and electrical repairs

Electrical Schematics:

Detailed electrical schematics and wiring diagrams are a core component of the manual's coverage.

Page Count:

Not specified, but implied to be comprehensive ('A-Z')

Manual Type:

Workshop Service Repair Manual

Manual Purpose:

Authoritative guide for diagnostics, repair, and maintenance, enabling owner self-servicing.

Language:

English

Format:

Digital (PDF)

📖 Manual Coverage

Systems Covered:

Engine, fuel & emissions, cooling & heating, intake & exhaust, lubrication, transaxle, clutch, manual transmission, differential, driveshaft, steering, suspension, brakes (including ABS), body, heater & air conditioning, automatic climate control, electrical systems, SRS (Supplemental Restraint System), ignition, emissions control

Engine Management:

Detailed coverage of diesel engine components, fuel delivery, injection timing, glow plug system, and emission control devices relevant to the era.

Drivetrain:

Comprehensive coverage of rear axle differentials, half-shafts, and on 4WD models, the transfer case and front axle components.

Procedures Included:

Routine maintenance, tune-up, engine removal/installation, cylinder head/valve train, engine block, engine lubrication, intake manifold/exhaust system, cooling, fuel system, emissions control, transaxle, clutch service, manual transmission overhaul, differential service, driveshaft balancing, steering system repair, suspension alignment and repair, brake system overhaul (including ABS diagnostics), body panel repair, HVAC system servicing, electrical component diagnostics and repair, SRS system diagnostics, engine repair, air conditioning system repair, exhaust system repair, ignition system troubleshooting, valve timing procedures, chain/gear replacement, general removal/installation instructions, safety precautions, special tool usage, tensioner adjustments, tightening torques, timing marks, tensioner release/reset methods, chain routing, sprocket/gear valve timing marks

Electrical Diagnostics:

Includes comprehensive wiring diagrams, troubleshooting guides for lighting, starting, charging systems, instrument panel, and accessory circuits. Specific mention of SRS system diagnostics.

Engine Rebuild:

Detailed procedures for engine disassembly, inspection, measurement of wear, component replacement (pistons, rings, bearings, valves), and reassembly.

Body Repair:

Includes procedures for panel replacement, dent repair, welding, and painting preparation for various body components.

Technical Depth:

Comprehensive, from routine maintenance to full mechanical and electrical repairs, including detailed diagrams and pictures.

Tightening Torques:

Specific torque values for critical fasteners across all major mechanical and body components.

📊 Manual Specifications

File Format:

PDF

Searchability:

Likely text-searchable PDF due to inclusion of detailed information and diagrams.

Compatibility:

Compatible with PC/MAC computers running Microsoft Windows (XP, NT, 2000, Vista, Windows 7, etc.)

Print Quality:

High-resolution, printable pages ('tons of detailed pictures & diagrams included')

Diagram Detail:

High detail, aiding in component identification and assembly/disassembly procedures.

Binding Type:

Digital download (no physical binding)

Paper Type:

N/A (Digital)

⚙️ Engine Specifications

Primary Engine:

Daihatsu DL series diesel engine (e.g., DL-41, DL-42, DL-51). Exact displacement varies by specific S85 variant but typically around 850cc to 1000cc.

Engine Type:

Inline 3-cylinder, naturally aspirated diesel.

Bore X Stroke:

Specific dimensions not provided, but typical for its class would be compact bore and stroke for small displacement.

Horsepower Range:

Typically 30-40 HP for diesel variants, optimized for torque and fuel efficiency rather than outright power.

Torque Figure:

Typically in the range of 70-90 Nm (50-65 lb-ft), available at lower RPMs for better drivability and load carrying.

Fuel System:

Indirect injection diesel with rotary or inline injection pump, typically naturally aspirated.

🔧 Transmission

Standard Transmission:

4-speed or 5-speed manual transmission.

Gear Ratios:

Not specified, but manual transmission gear ratios tailored for fuel economy and load carrying in low-speed operations.

Optional Transmission:

Automatic transmission may have been available on some higher-spec or specific market variants.

Transmission Features:

Rear-wheel drive or selectable 4-wheel drive. Low-range gearing often available on 4WD models for enhanced off-road capability or towing.

📐 Dimensions

Exterior Dimensions:

Compact kei-truck/van dimensions adhering to Japanese regulations of the era. Exact length, width, and height vary by body style (panel van, pickup truck, high-roof variants).

Wheelbase:

Varies by specific body configuration, but typically around 1800-1900 mm.

Curb Weight:

Approximately 750-950 kg (1650-2100 lbs), depending on configuration.

Gross Vehicle Weight Rating:

Typically around 1500-1700 kg (3300-3750 lbs), depending on model and configuration.

🛡️ Safety Features

Safety Ratings:

Limited specific safety ratings for this era of commercial utility vehicle. Primarily designed for functionality and basic occupant protection.

Active Features:

Standard hydraulic disc front brakes and drum rear brakes. Power steering not standard on all models.

Passive Features:

Seat belts, basic crumple zones incorporated into the body structure.

💡 Technology Features

Infotainment Features:

Basic AM/FM radio, often with optional cassette player. Manual climate controls.

Driver Assistance Features:

Very limited, if any, driver assistance systems were standard on this model. ABS was optional or available on later variants.

Connectivity Features:

None.

🔧 Maintenance

Recommended Oil Change Interval:

Typically every 5,000-10,000 km (3,000-6,000 miles) or 6-12 months, depending on operating conditions and oil type.

Engine Oil Specification:

API CD or CE grade diesel engine oil, SAE 10W-30 or 15W-40 depending on ambient temperature. Specific capacity around 3.8-4.2 liters.

Coolant Specification:

Ethylene glycol based antifreeze, typically a 50/50 mix with distilled water. Capacity around 3.5-4.0 liters.

Transmission Fluid Specification:

Manual Transmission: GL-4 hypoid gear oil (e.g., SAE 75W-90 or 80W-90). Automatic Transmission (if applicable): Dexron II or equivalent.

Brake Fluid Specification:

DOT 3 or DOT 4 brake fluid.

Common Issues:

Rust and corrosion on body panels and chassis, particularly in harsh climates. Wear and tear on suspension components due to heavy use. Diesel injection system maintenance. Overheating if cooling system is not properly maintained. Clutch wear on manual transmission models.

Engine Issues:

Potential for cylinder head gasket leaks if overheated. Wear on timing components (chain or belt, depending on specific engine variant). Injector pump maintenance may be required over time.

Suspension Issues:

Worn ball joints, tie rod ends, and bushings due to the nature of commercial use and rough road conditions. Leaf spring fatigue on rear suspension.

📚 Vehicle History

Brand Heritage:

Daihatsu, a subsidiary of Toyota, has a long history in producing compact and specialized vehicles, particularly kei cars and commercial vehicles known for their affordability and reliability.

Brand Philosophy:

Focus on practicality, affordability, and durability in compact vehicles.

Model Evolution:

The Hijet nameplate has been in continuous production since the 1960s, with the S85 representing a significant iteration in terms of design, engine technology, and chassis advancements for its time.

Key Updates S85:

Introduction of more refined diesel engines, updated chassis components, and body styling compared to previous generations.

Production Years:

1986-1994