Target Audience:
Daihatsu service technicians, independent garages, and DIY owners of the F300 HD
Manual Purpose:
Factory-style workshop procedures for repair, overhaul, adjustment, and servicing
Skill Level:
Ranges from routine maintenance to full engine teardown
Market Position:
Compact utility truck for light commercial, agricultural, and municipal work
Competitive Advantage:
Small footprint, low running cost, and simple mechanicals suited to tight workspaces
Key Features:
Cab-over layout, easy-access engine bay via cab tilt, economical low-displacement engine
Manual Type:
Engine Workshop Manual (factory service manual format)
Delivery Method:
Instant download after purchase
Binding:
Digital (no physical binding)
Primary Coverage:
Engine mechanical, fuel, cooling, and lubrication systems
Page Count:
N/A - see product listing for exact page count
Searchability:
Text-searchable PDF
Printing:
Printable on standard paper sizes
General Engine Information:
Identification, displacement data, and tuning specifications
Engine Mechanical:
Cylinder head, valves, pistons, rings, crankshaft, bearings, and block service
Timing / Valve Train:
Timing chain or belt arrangement, timing marks, valve clearance adjustment
Cylinder Head Service:
Disassembly, inspection, valve grinding, guide and seal replacement
Cylinder Block Service:
Boring, honing, piston fitting, bearing clearance measurement
Crankshaft and Rods:
End play, journal measurement, connecting rod service
Camshaft:
Lobe inspection, bearing clearance, installation and timing
Lubrication System:
Oil pump inspection, relief valve, oil filter and oil galleries
Cooling System:
Water pump, thermostat, radiator, hoses, coolant flow and bleeding
Fuel, Ignition and Emission
Fuel System:
Carburetor inspection, adjustment, float level, and fuel pump service
Fuel Specifications:
Idle speed, mixture adjustment points, and choke operation
Ignition System:
Spark plug type and gap, ignition coil, distributor, timing adjustment
Emission Controls:
Crankcase ventilation and evaporative emission components where fitted
Electrical and Ancillaries
Starting System:
Starter motor inspection and service
Charging System:
Alternator inspection and belt adjustment
Engine Electrical:
Wiring references for sensors, switches, and ignition circuits
Procedures and Specifications
Procedures Included:
Removal, disassembly, inspection, overhaul, reassembly, and installation steps
Torque Specifications:
Tightening values for head bolts, main and rod bearings, and accessory fasteners
Clearance Data:
Service limits for pistons, bearings, valves, and shafts
Special Tools:
Listed tools and equivalents noted where required
Parts Information:
Component identification, inspection criteria, and replacement guidance
Diagrams:
Exploded views, assembly diagrams, and specification tables
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Family:
Daihatsu HD series water-cooled gasoline engine
Configuration:
Inline 3-cylinder (kei-class specification)
Valve Train:
Single overhead camshaft
Displacement:
N/A - exact displacement 550-660 cc class; confirm against manual data table
Bore and Stroke:
N/A - refer to specification table in manual
Performance and Service Data
Cooling:
Liquid-cooled with water pump and thermostat
Lubrication:
Pressurized lubrication with full-flow oil filter
Ignition:
Conventional coil and distributor ignition
Emission Standard:
N/A - varies by market and registration year
Transmission Configuration
Standard Transmission:
Manual, cab-mounted floor shift
Gear Arrangement:
Multiple forward speeds plus reverse (confirm count in manual specs)
Clutch:
Single dry-plate clutch with cable or hydraulic release according to fitment
Final Drive:
Rear axle with live axle and differential
Optional Transmission:
N/A - automatic not offered on this light truck specification
Features:
Simple synchronized or non-synchronized gearset typical of kei trucks; low-range 4WD transfer where equipped
Body Style:
Cab-over light truck with cargo bed
Wheelbase:
N/A - exact figure not stated; kei truck class typically around 1.8 m
Length:
N/A - see manufacturer specification for the specific F300 HD variant
Width:
N/A - kei-class width limit
Cabin:
Single cab, two-seat layout
Curb Weight:
N/A - refer to vehicle data plate; kei truck class typically well under 1000 kg
Payload:
N/A - rated payload varies by market specification
Crash Test Ratings:
N/A - no published consumer crash rating for this era kei truck
Body Construction:
Steel cab and chassis with cab-over crash structure
Brakes:
Hydraulic service brakes; front/rear drum or disc/drum depending on spec
Parking Brake:
Mechanical lever-operated parking brake
Active and Passive Features
Active Features:
Basic hydraulic braking, steering, and lighting as fitted to period light trucks
Passive Features:
Seat belts for driver and passenger; laminated windscreen
Modern Aids:
N/A - ABS, airbags, and electronic stability aids were not offered in 1989
Engine Oil:
Engine oil and filter replacement at regular mileage intervals - check manual schedule
Air Filter:
Inspect and replace at service interval; more often in dusty conditions
Spark Plugs:
Check gap and replace at recommended intervals
Valve Clearance:
Periodic inspection and adjustment required
Ignition Timing:
Check and adjust per specification table
Coolant:
Check level and concentration; replace at interval stated in manual
Belts:
Inspect alternator and cooling fan belts for tension and wear
Fluids and Known Wear Items
Engine Oil Specification:
N/A - use grade listed in manual for ambient conditions
Coolant Type:
Ethylene-glycol based coolant as recommended for period engines
Timing Component:
Inspect chain or belt and tensioner at recommended interval
Common Wear Items:
Clutch, brake linings, water pump seal, oil seals, and ignition components
Known Issues:
Carburetor wear and water pump seepage are typical high-mileage concerns