The production of diesels of the 1HD series was launched in 1990, then the engine appeared on the Toyota Coaster bus and the Land Cruiser 80 SUV. The 1HD engine turned out to be not only very reliable and not whimsical, but its power indicators are quite impressive. The simplicity of the design allows you to repair and service the motor yourself.
HD family: 1HD-T, 1HD-FT, 1HD-FTE.
Specifications
| Production years | 1990-2007 |
| Displacement, cc | 4164 |
| Fuel system | direct injection |
| Power output, hp | 160 – 204 |
| Torque output, Nm | 355 – 430 |
| Cylinder block | cast iron R6 |
| Block head | cast iron 12v / 24v |
| Cylinder bore, mm | 94 |
| Piston stroke, mm | 100 |
| Compression ratio | 18.6 – 18.8 |
| Hydraulic lifters | no |
| Timing drive | belt |
| Turbocharging | CT20B / CT22 / CT26 |
| Recommended engine oil | 5W-30 10W-30 15W-40 20W-50 |
| Engine oil capacity, liter | 9.5 – 11.4 |
| Fuel type | diesel |
| Euro standards | EURO 1/2/3 |
| Fuel consumption, L/100 km (for Toyota Land Cruiser 100) — city — highway — combined |
14.1 9.3 11.1 |
| Engine lifespan, km | ~500 000 |
| Weight, kg | 350 – 365 |
| Oil consumption, gr/1000 km | up to 1000 |
| Oil change interval, km | 7000-10000 |
Toyota 1HD Mods
- 1HD-T – the basic version, the engine had an 8-valve cylinder head and a CT22 turbine, the boost pressure was 0.48 bar, the power was 165 hp;
- 1HD-FT – a modification, production of which began in the mid-90s, received a 16-valve cylinder head, a different camshaft. The turbine pressure increased to 0.62 bar, but the engine had to be clamped due to environmental regulations. Power was 170 HP;
- 1HD-FTE – the latest modification, which received an electronic injection pump, improved cylinder head cooling, a camshaft with a 224/246 phase, a CT20B turbine. Power increased to 202 hp and torque to 400+ Nm;
The engine was installed on:
- Toyota Land Cruiser 80 (J80) in 1995 – 1997, Land Cruiser 100 (J100) in 1998 – 2007;
- Toyota Coaster 2 (B20) in 1990 – 1993, Coaster 3 (B40) in 1993 – 2003.
Disadvantages of the Toyota 1HD engine
- Adjustment of valve thermal clearances is required every 40,000 km;
- The timing belt rarely withstands more than 100,000 km;
- Quickly clogs EGR valve and intake manifold with coke;
- There is a problem with the wear of the camshafts, rockers and their axles;
- The fuel pressure regulator periodically fails;
- The new electronic injection pump is much more capricious than the mechanical one;
Regardless, 1HD turbocharged diesels are simple, reliable and pose few problems with regular maintenance, quality oil and good fuel. A 1HD resource can easily exceed 700 thousand km.
Frequently asked questions about the Toyota 1HD
How much power does the Toyota 1HD make?
The Toyota 1HD develops 160 - 204 hp and 355 - 430 Nm of torque.
How much oil does the Toyota 1HD take and which one?
Engine oil capacity: 9.5 - 11.4 liters. Recommended oil: 5W-30; 10W-30; 15W-40; 20W-50.
Does the Toyota 1HD have a timing belt or chain?
The Toyota 1HD uses a timing belt.
Does the Toyota 1HD need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Toyota 1HD last?
The typical lifespan of the Toyota 1HD is ~500 000 km with proper maintenance.
What is the fuel consumption of the Toyota 1HD?
Toyota Land Cruiser 100: city 14.1, highway 9.3, combined 11.1 L/100 km.
What cars was the Toyota 1HD installed on?
Toyota Land Cruiser 80 (J80) in 1995 - 1997, Land Cruiser 100 (J100) in 1998 - 2007; Toyota Coaster 2 (B20) in 1990 - 1993, Coaster 3 (B40) in 1993 - 2003.
What are the common problems of the Toyota 1HD?
Adjustment of valve thermal clearances is required every 40,000 km. The timing belt rarely withstands more than 100,000 km. All known problems.
