Understanding the 1989-1997 Honda Acty: Key Specs and Metrics

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Understanding the 1989-1997 Honda Acty: Key Specs and Metrics

When considering the Honda Acty, particularly the models from 1989 to 1997, it's crucial to dive into the specifications that define this iconic Japanese kei truck. Here at OIWA, we've compiled a comprehensive overview of the Acty's essential stats, giving you a clear picture of what to expect from this reliable vehicle.

Performance and Engine Specifications

Idle and Fast Idle Speeds:

  • Idle Speed: Ranges from 950 to 1000 RPM.
  • Fast Idle: Varies between 2200 and 3200 RPM.

Engine Efficiency:

  • Oil Pressure: Maintains a healthy range of 55 to 64 PSI or 3.8 to 4.4 BAR.
  • Fuel Pressure: Stays between 1 to 2 PSI, or 0.07 to 0.14 BAR.

Fuel Capacity and Efficiency:

  • Fuel Tank: Can hold up to 9.8 gallons or 37 liters of regular, low octane (87 in the USA) gasoline.
  • Gas Mileage: Owners report an impressive range of 35 to 53 miles per gallon (15 to 22.5 kilometers per liter).

Engine Compression and Valve Clearance (Cold):

  • Standard Compression: 9.8:1 ratio, with a compression of 14 BAR (203 PSI) at 250 RPM and a minimum of 9.5 BAR (138 PSI).
  • Valve Clearance: Intake valves at 0.18 to 0.22mm, and Exhaust at 0.25 to 0.29mm.

Emissions and Ignition:

  • CO Emissions: Maintains a level of <= 0.1% at 3000 RPM.
  • HC Emissions: Stays below or equal to 200 PPM at 3000 RPM.
  • Ignition Timing: For manual transmission, it's 4 deg +/-2 deg at 1000 RPM, and for automatic, it's at 1150 RPM.

Suspension and Alignment

Front Suspension:

  • Toe-in: Approximately In 1mm +/-3 mm.
  • Camber: Varies slightly between models, generally around +1 degree +/- 1 degree.
  • Caster and King Pin Incline: Averages around 2.3 to 2.5 degrees, with a King Pin Incline of +12 degrees 30'.

Rear Suspension:

  • Toe-in and Camber: Generally non-adjustable, maintaining a standard 0 +/-3 mm for toe-in and 0 for camber.

Braking System

Parking Brake and Pedal:

  • Parking Brake: Requires a 44 lb (20 kg) pull in the 8 to 12th notch.
  • Brake Pedal: Height from the floor should be around 145 mm, with a backlash of 1-10 mm

Brake Disc and Pads:

  • Front Brake Disc: Minimum thickness of 10 mm.
  • Brake Pads: Minimum thickness of 3 mm.

Rear Brake Drum:

  • Minimum lining thickness of 2 mm.

The Honda Acty, a vehicle renowned for its durability and efficiency, continues to be a reliable choice for various tasks and terrains. Understanding these specifications is key to optimizing the performance of your Acty. Stay tuned to OIWA for more insights and expert tips on your Honda Acty and other Japanese kei trucks.