From 1982 until 1991, the company produced the 1.6-liter Toyota 1Y carbureted engine, which was used in Town Ace minibuses, Toyo Ace delivery trucks, and Hiace trucks. An exhaust cleaning system with its own index, 1Y-J, was included in a version of this engine.
The engines in the Y family are 1Y, 2Y, 3Y, 3Y-E, 3Y-EU, 4Y, and 4Y-E.
The engine was mounted on:
- Toyota Hilux 4 (N50) in 1983 – 1988;
- Toyota TownAce 2 (R20) in 1983 – 1992.
Specifications
| 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 |
8.5 6.1 7.2 |
| Engine lifespan, km | ~250 000 |
| Weight, kg | 140 |
Disadvantages of the Toyota 1Y engine
This series’ engines have many original parts and are challenging to fix;
It has a unique ignition system and an advanced carburetor of its own;
The battle against air leaks lasts the entire life of the owner of a vehicle with such an engine;
Because the oil filter is positioned upside down, it is challenging to replace it without getting dirty; during extended runs, oil consumption frequently reaches 1 liter per 1000 kilometers.