Toyota H engine
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The Toyota H engine was first produced in 1967 but did not reach road cars until 1972. The H engine was then replaced by the 2H engine and the 12H-T turbo engine. It was succeeded by the more advanced SOHC HZ series engine.
Production1967-1990
Displacement3.6 L (3,576 cc)
4.0 L (3,980 cc)
4.0 L (3,980 cc)
| Toyota H engine | |
|---|---|
| Overview | |
| Manufacturer | Toyota Motor Company |
| Production | 1967-1990 |
| Layout | |
| Configuration | Straight-6 |
| Displacement | 3.6 L (3,576 cc) 4.0 L (3,980 cc) |
| Cylinder bore | 88 mm (3.46 in) 91 mm (3.58 in) |
| Piston stroke | 98 mm (3.86 in) 102 mm (4.02 in) |
| Cylinder block material | Cast iron |
| Cylinder head material | Cast iron |
| Valvetrain | OHV with 2 valves per cylinder |
| Valvetrain drive system | Timing gears |
| Compression ratio | 18.6:1-22.0:1 |
| RPM range | |
| Idle speed | 650-750 rpm |
| Combustion | |
| Turbocharger | Toyota CT26 on 12H-T |
| Fuel system | Mechanical fuel injection Direct injection |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 91–136 PS (90–134 hp; 67–100 kW) |
| Torque output | 204–315 N⋅m (21–32 kg⋅m; 150–232 lb⋅ft) |
| Chronology | |
| Predecessor | Toyota D engine |
| Successor | Toyota HZ engine (for 2H) |
The H is a 3.6 L (3,576 cc) inline 6, 12-valve OHV diesel engine.[1] Bore is 88 mm and stroke is 98 mm, with a compression ratio of 21:1. Output is 91 to 95 PS (67 to 70 kW) at 3,600 rpm with 20.8 to 22.0 kg⋅m (204 to 216 N⋅m; 150 to 159 lb⋅ft) of torque at 2,200 rpm.[1]
Applications
- Toyota Land Cruiser HJ45
- Toyota Dyna HU15 HU30
- Toyota Weapon carrier HQ15