The Land Rover 42D 4.0-liter gasoline engine was produced by the company from 1994 to 2002 and was installed in popular SUVs such as the Range Rover II, Defender and Discovery 2. This unit exists in several versions and is also known under the 56D, 57D and 94D indices.
The Rover V8 series includes: 46D.
Specifications
| Production years | 1994-2002 |
| Displacement, cc | 3946 |
| Fuel system | distributed injection |
| Power output, hp | 185 – 190 |
| Torque output, Nm | 320 – 340 |
| Cylinder block | aluminum V8 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 94 |
| Piston stroke, mm | 71 |
| Compression ratio | 9.35 |
| Features | OHV |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 5.8 |
| Fuel type | petrol |
| Euro standards | EURO 2 |
| Fuel consumption, L/100 km (for Range Rover II 1996) — city — highway — combined |
22.5 12.6 16.3 |
| Engine lifespan, km | ~200 000 |
The engine was installed on:
- Land Rover Defender 1 (L316) in 1994 – 1998;
- Land Rover Discovery 2 (L318) in 1998 – 2002;
- Land Rover Range Rover 2 (P38A) in 1994 – 2002.
Disadvantages of the Land Rover 42D engine
- Until 1999, there was a general problem with the drawdown of liners and engine failure.
- Then the cylinder block was modernized and a collar holding the liners appeared.
- In the same year, the extremely unreliable GEMS injection system was replaced by Bosch Motronic.
- Updated units after 1999 often suffer from block microcracks.
- A lot of trouble is delivered by capricious electrical sensors, as well as a gasoline pump.
