Engine Toyota 1Y

The 1.6-liter Toyota 1Y carbureted engine was produced by the company from 1982 to 1991 and was installed on Town Ace minibuses, Toyo Ace delivery trucks or Hiace Trucks. There was a version of this engine with an exhaust cleaning system with its own index 1Y-J.

The Y family includes engines: 1Y, 2Y, 3Y, 3Y‑E, 3Y‑EU, 4Y, 4Y‑E.

The engine was installed on:

  • Toyota Hilux 4 (N50) in 1983 – 1988;
  • Toyota TownAce 2 (R20) in 1983 – 1992.


Production years 1982-1991
Displacement, cc 1626
Fuel system carburetor
Power output, hp 84
Torque output, Nm 135
Cylinder block cast iron R4
Block head aluminum 8v
Cylinder bore, mm 86
Piston stroke, mm 70
Compression ratio 8.8
Features OHV
Hydraulic lifters yes
Timing drive chain
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 3.5
Fuel type petrol
Euro standards EURO 0
Fuel consumption, L/100 km (for Toyota Town Ace 1984)
— city
— highway
— combined
Engine lifespan, km ~250 000
Weight, kg 140

Disadvantages of the Toyota 1Y engine

  • The engines of this series are difficult to repair, and also have a lot of original components;
  • It has its own sophisticated carburetor and a specific ignition system;
  • The whole life of the owner of a car with such an engine passes in the fight against air leaks;
  • The oil filter is located upside down here, it is difficult not to get dirty when replacing;
  • On long runs, oil consumption often appears up to 1 liter per 1000 km.

2 thoughts on “Engine Toyota 1Y”

  1. Tinhamhofu

    i have a hiace truck 1985 model
    it is misfiring on acceleration
    may i know the possible causes
    may i know also the timing setting xx degrees before TDC
    thank you so much

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