The Mitsubishi 4G61 gasoline engine was produced from 1987 to 1995 and was used in both Mitsubishi and other brands, including Hyundai and Dodge. This engine stands out from the other members of the 4G6 family by its design: it does not have balancer shafts, which makes it simpler and potentially more reliable in operation. Let’s take a closer look at the technical characteristics and features of various modifications of this power unit.
Mitsubishi 4G61 engine specifications
| Parameter | 4G61 ECFI DOHC | 4G61 MPFI DOHC | 4G61T MPFI TURBO |
|---|---|---|---|
| Precise displacement | 1595 cm³ | 1595 cm³ | 1595 cm³ |
| Power System | Monofusion | Injector | Injector |
| Engine power | 105 – 115 hp | 115 – 130 hp | 135 – 160 hp |
| Torque | 135 – 140 Nm | 140 – 145 Nm | 190 – 220 Nm |
| Cylinder block | Cast iron R4 | Cast iron R4 | Cast iron R4 |
| Block Head | Aluminum 16v | Aluminum 16v | Aluminum 16v |
| Cylinder diameter | 82.3 mm | 82.3 mm | 82.3 mm |
| Piston stroke | 75 mm | 75 mm | 75 mm |
| Compression ratio | 9.0 | 9.2 | 8.0 |
| Engine Features | No | No | Intercooler |
| Hydrocompensators | Yes | Yes | Yes |
| Transmission of the timing belt | Belt | Belt | Belt |
| Fasoregulator | No | No | No |
| Turbocharging | No | No | TD04-11B |
| Oil | 4.0 liter 5W-30 | 4.0 liter 5W-30 | 4.0 liter 5W-30 |
| Environmental class | EURO 2 | EBRO 2/3 | EURO 2/3 |
| Example life | 350,000 km | 375,000 km | 325,000 km |
| Engine weight | 155 kg | 155 kg | 155 kg |
Application of the motor
This motor was put on different models of cars, both Japanese and foreign manufacturers:
- Mitsubishi Colt C50 (1987 – 1992)
- Mitsubishi Lancer CA (1987 – 1992)
- Hyundai Lantra 1 (J1) (1991 – 1995)
- Dodge Colt (1988 – 1992)
Technological Features
One of the key aspects of the 4G61 was the introduction of technology that helped improve fuel efficiency and reduce emissions. Mitsubishi was actively researching and developing fuel injection control systems and improved timing mechanisms at the time, which helped improve the engine’s fuel economy and dynamic performance.
In addition, the compact size and lightweight design of the 4G61 made it popular not only for production cars, but also for tuning. Due to its simplicity, this engine was easily subjected to modifications, which led to its use in various motorsports projects.
Disadvantages and common problems of the 4G61
Despite its reliability, the 4G61 engine has a few common problems:
- Wear of the hydrocompensators. Wear out quickly when low-quality oil is used, causing them to knock.
- Swimming RPMs. The main causes are contamination of the idle speed regulator (ICC) or throttle valve.
- Timely wear of the timing belt. The belt may not pass its stated 90,000 km, and when the break occurs deformation of the valves.
- Long-lasting engine cushions. The left cushion is particularly prone to rapid wear.
How good is the Mitsubishi 4G61 engine?
The Mitsubishi 4G61 1.6 liter engine is a reliable power unit with excellent performance and a good resource, but requires careful care, especially when choosing oil and regular timing maintenance.
Engine Rating 4