The 2.0-liter 16-valve Rover 20M4F or 20HDM16 engine was assembled from 1986 to 1995 and put on the 800 model until its restyling in 1991, then on advanced versions of the 200 and 400. There is a 120-hp modification of this unit with single injection and a 177-hp turbo engine.
Engines of M/T-series: 20T4H, 20M4F, 20T4G.
Specifications
| Production years | 1986-1995 |
| Displacement, cc | 1994 |
| Fuel system | distributed injection |
| Power output, hp | 133 – 140 |
| Torque output, Nm | 178 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 84.45 |
| Piston stroke, mm | 88.9 |
| Compression ratio | 10.0 |
| Features | DOHC |
| Hydraulic lifters | yes |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.9 |
| Fuel type | petrol |
| Euro standards | EURO 1/2 |
| Fuel consumption, L/100 km (for Rover 820 1988) — city — highway — combined |
11.3 6.5 8.4 |
| Engine lifespan, km | ~280 000 |
| Weight, kg | 162.8 |
The engine was installed on:
- Rover 200 II (XW) in 1991 – 1995;
- Rover 400 I (XW) in 1992 – 1995;
- Rover 800 I (XS) in 1986 – 1991.
Disadvantages of the Rover 20M4F engine
- The first years of production, the engine had a bunch of flaws and caused a lot of trouble;
- Grease and antifreeze leaks occurred regularly, and hydraulic lifters also hung;
- In addition, owners of cars with such a motor complain about vibrations and noisy operation;
- The timing belt is designed for 100,000 km, and when it breaks, the valves always bend.
