Mitsubishi 1.6 engine

Types of Mitsubishi 1.6 engines

The Mitsubishi 1.6 engine is a decreasingly popular choice for automakers today. However, it is a versatile engine that can power several types of vehicles and serve various purposes. The Mitsubishi 1.6 engine is available in two main types:

• Mitsubishi 4G61 engine

  The Mitsubishi 4G61 engine is a 1.6L inline-four piston engine that was produced from 1982 to 1998. It is a naturally aspirated engine with a SOHC or DOHC valve train. It has a cast iron engine block and a cast aluminum cylinder head. The 4G61 engine has a bore size of 81 mm and a stroke length of 80 mm. It uses a timing belt to drive the DOHC or SOHC valvetrain. The engine features a compression ratio of 8.5:1 for the SOHC variant and 9.0:1 for the DOHC variant. The 4G61 engine uses fuel injection to deliver fuel to the combustion chambers. Mitsubishi also offered a turbocharged version of the 4G61 engine, called the 4G61T. The turbocharged variant has a compression ratio of 8.5:1 and a turbocharger with an intercooler.

• Mitsubishi 4B11 engine

  The Mitsubishi 4B11 engine is a 1.6L inline-four piston engine with an aluminum engine block and an aluminum cylinder head. Its Bore x Stroke is 86 mm x 86 mm. The 4B11 engine uses a timing chain to drive the DOHC valvetrain. All variants of the 4B11 engine have a compression ratio of 10.5:1. This engine was the first in the Mitsubishi 4B family to use MIVEC. MIVEC is an abbreviation for Mitsubishi Innovative Valve timing Electronic Control. MIVEC controls the lift and timing of the intake and exhaust valves to improve engine performance and fuel efficiency. The 4B11 engine also has a dual VVT system that uses a hydraulic actuator to vary the timing of the camshaft lobes based on engine load and speed. Mitsubishi offered several variants of the 4B11 engine. The 4B11T is a turbocharged variant of the 4B11 engine. It has a compression ratio of 9.5:1 and uses a turbocharger with an intercooler to boost engine power. The turbocharger increases the engine's power output without increasing engine size. The 4B11 GT3 and 4B11 GT4 engines are the most powerful variants. The 4B11 GT3 and 4B11 GT4 engines use a turbocharger with an intercooler and have a compression ratio of 9.0:1.

Specification and maintenance of Mitsubishi 1.6 Engine

• Oil changes

  Regular oil changes are crucial for the upkeep of the Mitsubishi 1.6 engine. Oil changes should happen every 5,000 kilometers or every three months, whichever comes first. Fresh oil keeps the engine lubricated and prevents debris buildup, protecting engine parts from early wear.

• Air filter replacement

  The air filter should be checked every 10,000 kilometers and replaced as needed. A clean air filter ensures unrestricted airflow into the engine, optimizing combustion and fuel efficiency. Driving in dusty conditions requires more frequent inspections.

• Coolant flushes

  Coolant flushes are essential to maintain the cooling system's effectiveness. The coolant should be drained and replaced every 40,000 kilometers or five years. This prevents scale buildup and ensures the radiator functions properly, preventing engine overheating.

• Spark plug checks

  Mitsubishi Lancer 1.6 engine maintenance must include spark plugs. They should be inspected every 20,000 kilometers for wear or corrosion. Healthy spark plugs ignite the air-fuel mixture reliably, maximizing power output. Faulty plugs can cause misfires and reduced engine performance.

• Tire care

  Tires should be rotated every 10,000 kilometers for even tread wear. Regular rotation optimizes tire grip, braking, and fuel efficiency. Properly inflated tires are also essential. Underinflated tires increase rolling resistance, decreasing fuel efficiency. The recommended pressure can be found in the vehicle's manual or on a sticker inside the driver's door.

• Throttle body cleaning

  The throttle body controls air intake into the engine. Over time, it can accumulate carbon deposits, affecting its functionality and fuel efficiency. Throttle body cleaning should be done every 40,000 kilometers. A clean throttle body ensures optimal airflow, improving engine response and fuel economy.

• Suspension checks

  The suspension system is vital for ride comfort and vehicle control. Components like shock absorbers and struts should be inspected every 40,000 kilometers for wear. A well-functioning suspension maintains tire contact with the road, enhancing safety and driving stability.

• Brake system inspection

  The brake system must be checked every 20,000 kilometers. This includes examining brake pads, discs, lines, and the master cylinder. Timely replacement of worn brake pads prevents damage to discs. A well-maintained brake system is crucial for safety, ensuring reliable stopping power.

How to Choose Mitsubishi 1.6 Engines

• Engine compatibility

  When choosing a Mitsubishi 1.6 engine, compatibility with the targeted vehicle is very important. Different vehicles have various engine configurations. This includes the number of cylinders and their arrangement, as well as the engine's physical size and layout. Additionally, the engine's mounting points and the exhaust system's routing should be considered. The exhaust system needs to be compatible with the engine to function properly. Furthermore, the engine should be compatible with the vehicle's electronic control unit (ECU) to communicate effectively.

  Moreover, the engine chosen should be compatible with the vehicle's fuel system. For instance, if the vehicle has a fuel system designed for a turbocharged engine, a naturally aspirated engine may not work effectively.

• Driving needs

  Driving needs are also an important factor to consider when choosing a Mitsubishi 1.6 engine. Buyers should consider their driving habits and the type of driving they do most of the time. For instance, those who do a lot of city driving need an engine that performs well at low RPMs and is very fuel efficient. On the other hand, people who do a lot of highway driving need an engine with high-speed capabilities and good high-speed performance.

• Warranty and maintenance

  Warranty and maintenance are other important aspects buyers should consider when choosing a Mitsubishi 1.6 engine. They should choose an engine from a manufacturer that offers a good warranty. This will protect them from unexpected failures or defects in materials and workmanship. Additionally, buyers should consider the availability of spare parts for the engine they choose. Spare parts that are easy to find will make maintenance and repairs more affordable and convenient. Furthermore, they should choose an engine with simple installation and routine maintenance procedures.

How to DIY and Replace Mitsubishi 1.6 Engines

Mitsubishi 1.6 engine replacement requires technical skills and knowledge about engines. Below is a step-by-step guide on how to replace Mitsubishi 1.6 engines.

• Prepare the Vehicle

  Firstly, the car must be parked on a flat ground that is well ventilated and has enough space. Then, the battery disconnection must be done to prevent any electrical connections. After that, the lifting system of the vehicle is applied to raise it and offer enough space to work on the engine.

• Remove the Old Engine

  Start by draining all fluids from the engine, such as coolant, oil, and fuel. The fluids should be disposed of in accordance with the regulations. Next, disconnect all electrical connections and remove all belts and hoses connected to the engine. The engine's mounting bolts must be loosened and the engine carefully lifted out of the vehicle with an engine hoist.

• Install the New Engine

  The new engine's mounting points should be aligned with the vehicle's engine bay. Then, the engine is carefully lowered into place using an engine hoist, and the mounting bolts are tightened to secure it. After that, all electrical connections are reconnected, and belts and hoses are installed and inspected for any leaks or issues.

• Final Checks

  Upon completing the engine replacement, the oil and coolant must be filled to the required levels. Then, all fluids must be checked to ensure there are no leaks. Finally, the battery is reconnected, and the vehicle is tested to ensure everything works properly.

Q&A

Q1: What Mitsubishi cars have a 1.6L engine?

A1: Mitsubishi Mirage and Mitsubishi ASX are the Mitsubishi cars that have a 1.6L engine.

Q2: How long does a Mitsubishi 1.6 engine last?

A2: A Mitsubishi 1.6 engine can last between 200,000 to 300,000 miles with proper maintenance.

Q3: Is the Mitsubishi 1.6 engine good?

A3: Yes, the Mitsubishi 1.6 engine is good. It has a good performance rate and is suitable for daily commuting and city driving.