The Toyota H engine was first produced in 1967 but did not reach road cars till 1972. It is not a successor to the older and larger .
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.
| Toyota H engine | |
| Oilsystem: | Wet sump |
| Coolingsystem: | Water-cooled |
| Power: | NaNPS |
| Idle: | 650-750 rpm |
| Timing: | Timing gears |
| Compression: | 18.6:1-22.0:1 |
| Stroke: | 98mm 102mm |
| Bore: | 88mm 91mm |
| Displacement: | 3576cc 3980cc |
| Fuelsystem: | Mechanical fuel injection Direct injection |
| Fueltype: | Diesel |
| Turbocharger: | Toyota CT26 on 12H-T |
| Head: | Cast iron |
| Valvetrain: | OHV with 2 valves per cylinder |
| Production: | 1967-1990 |
| Configuration: | Straight-6 |
| Manufacturer: | Toyota Motor Company |
| Torque: | NaNNm |
| Predecessor: | Toyota D engine |
| Successor: | Toyota HZ engine |
| Block: | Cast iron |
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 950NaN0 at 3,600 rpm with 22kgm of torque at 2,200 rpm.[1]
Applications
The 2H is a 4.0 L (3,980 cc) inline 6, 12 valve OHV indirect injection diesel engine. Bore is 91 mm and stroke is 102 mm, with a compression ratio of 20.7:1. Output is 1050NaN0 at 3,500 rpm - later production years 107 hp (80 kW) with 177 lb·ft (240 N·m) of torque at 2,000 rpm. This engine weighs 3300NaN0 in European trim from 1985.[2] Compared to its predecessor, the 2H proved to be much more reliable, running 1 million kilometers or more.
Applications
The 12H-T is a 4.0 L (3,980 cc) inline 6, 12 valve OHV turbocharged direct injection diesel engine. Bore is 91 mm and stroke is 102 mm, with a compression ratio of 18.6:1. Output is 134 hp (100 kW) at 3500 rpm with 232 lb·ft (315 N·m) of torque at 1,800 rpm, on the stock configuration of 7PSI of boost.[3]