Market Position:
The Daihatsu Sportrak (also known as Rocky in many markets) was positioned as a compact, rugged, and affordable off-road-capable vehicle, often competing with models like the Suzuki Samurai, Jeep Wrangler (smaller variants), and later, the Toyota RAV4 and Honda CR-V in spirit, though predating them in its more utilitarian approach.
Competitive Analysis:
Offered a distinctive blend of off-road capability with a relatively compact footprint, making it a niche vehicle appealing to those seeking an economical utility vehicle with serious trail potential. Its body-on-frame construction and solid rear axle set it apart from more car-like SUVs.
Key Features:
Compact dimensions, selectable 2WD/4WD system, often featuring a low-range transfer case for enhanced off-road traction, durable construction, practical interior, and a reputation for reliability and off-road prowess relative to its size.
Systems Covered:
Engine, Fuel System, Cooling System, Exhaust System, Clutch, Transmission (Manual & Automatic), Transfer Case, Driveshafts, Differentials, Suspension (Front & Rear), Steering, Brakes (Front & Rear), Wheels & Tires, Body Panels, Doors, Glass, Interior Trim, Electrical System (Ignition, Lighting, Instrumentation, Accessories), HVAC, Diagnostic Procedures, Troubleshooting
Page Count:
Approximately 500+
Manual Type:
Factory Service Repair Manual
Powertrain:
Comprehensive coverage of engine mechanics, fuel delivery, ignition timing, cooling system operation, exhaust emissions, clutch assembly, manual and automatic transmission overhaul, transfer case operation, drivetrain components, and differential service.
Maintenance Procedures:
Scheduled maintenance intervals, oil and filter changes, fluid checks and replacements (coolant, brake fluid, transmission fluid, differential oil), lubrication points, tune-up procedures, belt and hose inspection/replacement, spark plug service.
Repair Procedures:
Step-by-step instructions for engine rebuilds, transmission repairs, brake system overhauls, suspension component replacement, steering system service, electrical component diagnosis and repair, body panel alignment, and interior trim removal/installation.
Technical Depth:
Detailed diagnostic flowcharts, troubleshooting guides for common problems, torque specifications for all fasteners, electrical wiring diagrams, component specifications, and exploded view diagrams for assembly/disassembly.
Engine Code:
DL51, DL52, F50, F51, F52
Engine Type:
Inline 4-cylinder, Naturally Aspirated (Diesel and Gasoline variants)
Displacement:
1.6L (1589cc), 2.0L (1998cc - Diesel), 2.8L (2768cc - Diesel)
Horsepower Gasoline:
Approx. 73-80 hp (1.6L gasoline)
Torque Gasoline:
Approx. 84-90 lb-ft (1.6L gasoline)
Horsepower Diesel:
Approx. 67 hp (2.0L Diesel), Approx. 85 hp (2.8L Diesel)
Torque Diesel:
Approx. 90 lb-ft (2.0L Diesel), Approx. 135 lb-ft (2.8L Diesel)
Fuel System Gasoline:
Carbureted (e.g., Hitachi or Mikuni twin-barrel)
Fuel System Diesel:
Indirect Injection (IDI) Diesel
Ignition System:
Distributor-based, electronic ignition
Cooling System:
Liquid-cooled, thermostatically controlled
Transmission Type Standard:
5-speed Manual Transmission
Transmission Type Optional:
3-speed Automatic Transmission (less common)
Drivetrain:
Part-time 4WD with selectable 2WD/4WD and 2WD/4WD/4LO (Low Range) via a 2-speed transfer case
Manual Transmission Fluid:
API GL-4, SAE 75W-90 or 80W-90 gear oil
Automatic Transmission Fluid:
Dexron III equivalent
Transfer Case Fluid:
API GL-4, SAE 75W-90 or 80W-90 gear oil
Wheelbase:
Approx. 81.5 inches (2070 mm)
Length:
Approx. 140.6 inches (3570 mm)
Width:
Approx. 63.0 inches (1600 mm)
Height:
Approx. 65.0 inches (1650 mm)
Curb Weight:
Approx. 2100-2400 lbs (950-1090 kg), depending on configuration
Wheel Size:
Typically 15 inches
Tire Size:
Commonly 205/75R15, 215/75R15
Bolt Pattern:
5x139.7 mm (5x5.5 inches)
Safety Ratings:
N/A (Vehicle safety standards and testing were less stringent in 1988 compared to modern standards. Independent crash test data may be limited or unavailable.)
Active Safety Features:
Four-wheel drive system (for improved traction), limited-slip differential (optional on some models)
Passive Safety Features:
Seat belts (front and rear), padded dashboard, steel chassis and body structure.
Front Brakes:
Ventilated Disc Brakes
Engine Oil Change:
Every 3,000-5,000 miles (5,000-8,000 km) or 6 months, whichever comes first.
Transmission Fluid Change:
Every 30,000-50,000 miles (50,000-80,000 km)
Transfer Case Fluid Change:
Every 30,000-50,000 miles (50,000-80,000 km)
Differential Fluid Change:
Every 30,000-50,000 miles (50,000-80,000 km)
Coolant Flush:
Every 24,000-36,000 miles (40,000-60,000 km) or 2 years
Spark Plug Replacement:
Every 30,000 miles (50,000 km)
Engine Oil Viscosity:
10W-30 or 10W-40 recommended (check manual for specific ambient temperature ranges)
Engine Oil Capacity:
Approx. 4.0-4.5 quarts (3.8-4.3 liters) with filter change
Coolant Type:
Ethylene glycol-based antifreeze, typically a green coolant (consult manual for specific type)
Known Issues:
Rusting of body panels and chassis, especially in common areas like wheel arches, rocker panels, and the frame; carburetor tuning and maintenance can be critical for smooth operation; potential for worn suspension bushings and steering components due to age and off-road use; clutch wear; aging electrical components.
Brand Heritage:
Daihatsu, a subsidiary of Toyota Motor Corporation, has a long history of producing small, efficient, and reliable vehicles, particularly in the Kei car segment in Japan, and later expanding globally with compact cars and SUVs.
Model Evolution:
The Sportrak/Rocky lineage began in the early 1980s as a compact, rugged, body-on-frame SUV. The 1988 model represents a refinement of this platform, offering improved drivability and updated styling compared to earlier iterations, while retaining its core off-road capabilities.
Production Years:
The first generation (F10/F20/F50 series) was produced from the early 1980s to the early 1990s. The 1988 model falls within this generation.
Manufacturing Location:
Japan
