The company’s most well-known models at the time, including the Trooper, Mu, and Wizard, were powered by the 2.6-liter Isuzu 4ZE1 gasoline engine, which it produced from 1988 to 1998. This power unit was primarily available for SUVs with all-wheel drive.
Engines of the Z-series: 4ZD1, 4ZE1.
Specifications
| Production years | 1988-1998 |
| Displacement, cc | 2559 |
| Fuel system | injector |
| Power output, hp | 110 – 120 |
| Torque output, Nm | 195 – 205 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 92.7 |
| Piston stroke, mm | 95 |
| Compression ratio | 8.3 |
| Features | SOHC |
| Hydraulic lifters | no |
| Timing drive | belt |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.4 |
| Fuel type | petrol |
| Euro standards | EURO 1 |
| Fuel consumption, L/100 km (for Isuzu Trooper 1990) — city — highway — combined |
15.4 9.9 12.5 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 160 |
The engine was installed on:
- Isuzu Faster 3 (TF) in 1988 – 1997;
- Isuzu MU 1 (UC) in 1989 – 1998;
- Isuzu Trooper 1 (UB1) in 1988 – 1991;
- Isuzu Wizard 1 (UC) in 1989 – 1998;
- Honda Passport 1 (C58) in 1993 – 1997;
- SsangYong Korando Family in 1991 – 1994.
Disadvantages of the Isuzu 4ZE1 engine
The majority of its issues are solely age-related, and this engine is straightforward and dependable.
Additionally, it is extremely challenging to locate a master who will repair such a unit.
The throttle assembly’s contamination is typically the cause of floating engine speeds.
Here, the fuel pump and the antiquated ignition system are unreliable.
The timing belt must be changed and the valves’ thermal clearances adjusted on a regular basis.