The 2.6-liter Isuzu 4ZE1 gasoline engine was produced by the concern from 1988 to 1998 and was used by the company’s most popular models of its time, such as Trooper, Mu and Wizard. This power unit was mainly offered for all-wheel drive versions of SUVs.
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
- This is a simple and reliable engine and most of its problems are purely age related.
- It is also very difficult to find a master who will undertake the repair of such a unit.
- The reason for floating engine speeds is most often the contamination of the throttle assembly.
- The fuel pump and the archaic ignition system have low reliability here.
- Periodically it is necessary to adjust the thermal clearances of the valves and change the timing belt.
