Motor assembly 4A91 1.5 Mitsubishi Lancer X
Only by working in the field of car maintenance and repair and knowing their design and structure thoroughly, you can fully appreciate how much a car resembles a human body. There are no unnecessary details, everything works in a complex, together. If one organ “sicks” and is left without timely and qualified treatment, then, soon, it will pull others along with it. Everything is exactly the same in the case of a car. You need to be aware that equipment, no matter how hardy and reliable it would be, requires attention, care and maintenance.
What is all this for? In addition, the motor, which we will talk about in this article, was unlucky with the owner. He did not understand these seemingly simple truths.
And it was like that.
Mitsubishi Lancer 10 with a 1.5 liter engine (model 4A91) began to demand more and more often to open the hood and pour oil into the engine. Simply put Lancer 1.5 began to eat oil.
Question - why?
It is almost impossible to establish the exact reason, but there are versions:
- Oil change every 15,000 km or less. Yes, maybe the manufacturer prescribes this in the service book, but traffic jams, frequent warm-ups, extreme temperatures and many other factors are not included here. When operating a car in a city, 10,000 km is the limit even for the most expensive and high-quality "synthetics".
- The quality of fuels and lubricants (gasoline, oil). Great chance to run into a counterfeit.
- Low-quality components, spare parts. As with the second point, you can always buy fake or low-quality oil or air filters, for example.
- Rare air filter replacement. The result - he ceases to cope with his duties and dirt gets into the engine.
- Delays in taking action when engineMitsubishi Lancer 10 already began to require topping up of oil between maintenance. A dead exhaust gas converter can play a cruel joke.
- Constant driving at too high or vice versa too low speeds.
Separately, it is worth dwelling on the sixth point.
The point is that on Lancer 10 1.5 liter engine is the smallest in size. It lacks strength and elasticity, so very often you have to “twist” it well. Frequent and prolonged operation at high speeds does not benefit any engine, and the resource suddenly decreases.
love for oil eating more often it is the “smallest” ones that differ in cubature Mitsubishi motors.
Let's return to our sufferer. And so he began eat oil, thereby forcing its owner to open more and more often Mitsubishi Lancer 10 Hood. By the time of the "death" of the engine, he began to absorb up to 1000-1200 ml of oil per thousand km. Given such a strong oily appetite, the owner does not come up with anything better than at all to change the oil in the engine: "why, it is constantly updated anyway." Of course, after some time it exhausted its resource and stopped working. oil filter. The clean oil burned out, and all the dirt remained in the engine. From all this "lard in chocolate" he clogged up and refused oil pump. The result is predicted - camshaft bearing death.
Disassembled motor. Begin assemble engine 4А91, but first a couple of photos showing the general condition of some engine parts.
State cylinder mirrors.
Pistons with leftovers connecting rod rings. Notice the goo instead of oil on the parts. 
State crankshaft journals.
We sign first crankshaft covers.
We process with the smallest skin cylinder mirrors to create barely noticeable notches perpendicular to the piston. 
All the places where they were gaskets or sealant we clean it with a special nozzle using a drill. This must be done carefully, because. the main idea is to remove only the remnants of gaskets or sealant, and not metal. Without fanaticism. 
Install the upper crankshaft bearings.
Removing old liners With crankshaft covers and install new ones. 
The crankshaft returns to its place. 
Install the crankshaft thrust washers. 
Lubricate with a drop of oil crankshaft journals, because Liners for Lancer lockless and their can crank at first start engine.
When tightening the crankshaft cover bolts, a torque wrench must be used to maintain the required torque. We start tightening from the third cover and move from it. 
We remove the rings from the pistons and clean the latter. Install new rings. 
Work with the cylinder block is stopped for now. Let's move on to the cylinder head. It needs to be disassembled and sent for polishing. We sign the glasses of the valves and remove them. 
We remove the exhaust manifold and other parts. 
We dry the valves and remove them, just not forgetting to sign. 
Remove the valve spring washers. 
Dismantling of a head of the block of cylinders Mitsubishi Lancer 1.5 completed. Now we measure everything and once again make sure that "head" led. Send to cylinder head grinding.
We return to the block of cylinders.
Install rings on pistons. The rings should be installed in the likeness of the Mercedes badge: three rings - with cavities in three different sides. 
Install the connecting rod bearings. 
We tighten the piston rings with a coupler and install them in the cylinders. Please note: the dot on the piston must look towards the timing! 
We fix the connecting rods to the crankshaft. Don't forget about tightening points! 
We continue to work on cleaning the places where there were gaskets or sealants. 
The polished BC head has returned. 
Now begins the long process of lapping the valves. If the valves are new, then first they are rubbed with a large paste, then a fine one. Used valves - immediately with fine paste. 
Before installing the valve stem seals, lightly lubricate them with oil. 
Drying. 
Next, all the places where there were gaskets or sealant are polished and cleaned. 
Installing a new pump. 
Install the engine tray. 
We join the head and the block. Bolts are best used new. Of course, absolutely all gaskets are installed as new. 
The motor is ready. After installing attachments, the engine acquires a full-fledged appearance. 
Good afternoon, so I decided to write my review about this car.
Prior to that, I went to the entire model range of VAZ, Volga 3102, Lanos. Bought a car from a dealership in 2007. For three years of using the car, only consumables have changed.
What can I tell you about lancer? This is an excellent car in its class in terms of price / quality ratio. It has never failed me in three years. Once I was driving from Belgorod to St. Petersburg (1500 km.), Traveled in 15 hours. The car behaved perfectly on the road, but because of the “stupid” machine, you have to predict the traffic situation and act for 1-2 seconds. in advance. The seats, in my opinion, are good, comfortable to sit on long distances. The reviews wrote that the steering wheel tilt level was poor. My height is 192 cm, I sit quietly behind the wheel. Everything suits me.
Strengths:
- Reliability
- Permeability for this class
Weak sides:
- The trunk lid does not close well (the dealer said it was a disease)
Review Mitsubishi Lancer 2.0 (Mitsubishi Lancer) 2007
16.03.2010
Hello!
I bought a car at a time when the queues for these miracles of technology were like a mausoleum at one time. I asked friends in neighboring Krasnodar and Rostov to periodically run around the salons and report on the presence of anything at all. With all this, I didn’t want to feel the emotions of a person who buys a Ferrari, ordering it 46.5 months in advance - he took only from what was available.
Strengths:
- Price quality
- Controllability
- brakes
- Omnivorous 91-98
Weak sides:
- Noise isolation
- dipped beam
Review Mitsubishi Lancer 1.8 (Mitsubishi Lancer) 2008
This is my first own car. When buying, of course, like any woman far from technology, she was guided by the choice of appearance. My husband thought about other characteristics (he has a Pajero). I had to wait 2 months at the official dealer. When I got the car (before that I had been driving several times on occasion), I thought that I would be afraid to start. However, unexpectedly for myself, from the first time I felt the simplicity of management, the obedience of my Ulanushka. She drove it from the salon herself, registered it herself, passed MOT, her husband was only surprised. Despite the fact that the machine was bought for me like this - go shopping, go to the dacha, etc. (I work 5 steps from home), fell in love with her so much that not a day passed without her. There is nothing to compare, but she obeys me implicitly. I drive on it, of course, but it was created for this.
The creation of the Mitsubishi Lancer 10 is a continuous improvement and development. The new X was developed in Germany, in Trebur, a design office in Frankfurt. Many years have passed since the appearance of the first generation (1973), the car has gone through many restylings and generations, having won the hearts of millions of motorists. The main features of the first models are also present in the Lancer X. The most striking values that underlie each one are the desire to develop and improve. Since the beginning of the appearance of the model, the car has become one of the most popular in many countries. Many choose this car because the price-quality ratio in this model is just perfect. The emergence of a new generation Mitsubishi Lancer X means a new round of history in the design of Lancers.
Mitsubishi Lancer X design
An important milestone in the history of the development of the model was the new design. The main design element of the front of the car is a stylized logo Mitsubishi Motors company. The upper and lower parts of the grille reflect the future development of the concept of building new Lancer models. Aggressive shark nose has become the hallmark of a new generation Mitsubishi Lancer.
The new is defined not only by the front end of the body, but also by the sharp air intakes and spoilers on the trunk lid. The low stance and wide footprint of the tire are elements of a sporty concept that appeal to many motorists, especially younger ones.
Inside the cabin Mitsubishi Lancer X
When creating the interior of the cabin, the designers used only high quality materials and carefully considered every detail. The salon inside combines comfort and convenience. The front panel deserves special attention, because the handles on it are located so that the machine is intuitively easy to operate. The very appearance of the panel is presented in a modern style.
Model Mitsubishi Lancer 10 is a new family built on top of the Project Global platform. The use of a new approach to the construction of machines allowed to increase the dimensions, size and space inside the cabin, as well as maintain the rigidity of the body, which was in the previous generation. On the same platform was created and. Thanks to this platform, the model has become larger than its predecessors. The car has become longer by 8 cm and wider by 6 cm.
Among competitors, Lancer is one of the favorites in the race for supremacy. The distance between the front seats has also increased (by 25 m), and the upper part of the cabin has also become wider by 51 mm. Despite the fact that the body of the car has become larger, the turning radius of 5 meters has remained the same.
Transmission Lancer X
Motorists have three options to choose from:
- 6-speed CVT gearbox;
- 5-speed mechanics;
- Automatic INVECS-II;
Those who buy a Mitsubishi Lancer X choose between three options: Invite, Invite + and Instense.
Traffic safety in Mitsubishi Lancer X
Special RISE technology, which provides a high level of strength and safety, was also used in the construction of the Lancer X. The body structure is designed in such a way that it reliably ensures the safety of passengers inside. In a side and rear impact, the body distributes energy and protects the fuel system to avoid fire.
Security package Mitsubishi Lancer X one of the best of its kind. It includes:
- 2 airbags;
- Passenger presence sensors;
- Standard side airbags;
- Top airbags;
- Airbag to protect the driver's knees;
Mitsubishi Motors knows how to make rally cars. This fact proves that the Lancer Evolution won 4 suspension design wins. A reliable and durable chassis ensures confident movement on any road, regardless of the surface.
For the safety of passengers inside, an anti-lock brake system () is provided, which monitors the level of adhesion of each wheel to the road. Electronic (EBD) perfectly distributes the braking forces between the front and rear wheels. Such advances in development allow you to enjoy every moment behind the wheel.
Features Mitsubishi Lancer X
Specifications Mitsubishi Lancer 10th generation, sedan 1.5 MT
Engine
Body
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Suspension and brakes
Tires and wheels
Country of Origin
Body
Performance characteristics
Transmission
Tires and wheels
Country of Origin
| Country of Origin | Japan |
Photo Mitsubishi Lancer 10
The 10th generation Mitsubishi Lancer was really a breakthrough, because the model has few similarities with previous generations, which is very impressive for motorists.
Petrol engine Mitsubishi Lancer 10 1.5 l. 109 hp frankly weak for a car that provokes active driving. The 4A91 series motor itself is clearly not sharpened for this. Therefore, a 1.5 liter gasoline aspirated Mitsubishi Lancer X does not last long and often needs to be repaired. The main problem after 100,000 mileage is oil consumption caused by coking of the piston rings. Today we will talk about all the design features of this motor. The engine is forced to the limit, the designers squeezed everything out of it, so it does not live long. 
Mitsubishi Lancer engine device 10 1.5 l.
The Mitsubishi 4A91 engine is an in-line 4-cylinder 16-valve unit with an aluminum cylinder block and a timing chain drive. This is a typical DOHC with two overhead camshafts. There is a phase shifter on the intake camshaft (the executive part of the variable valve timing system). The MIVEC valve timing control system works in combination with ECI-Multi distributed electronic fuel injection.
Engine block head Lancer 10 1.5 l.
Mitsubishi Lancer X 1.5 cylinder head liter is made of aluminum alloy. The camshafts act directly on the valves. That is, the cams of the shafts run into the glasses, which in turn put pressure on the valve stems. Luckily, there are no rockers there. But also in this motor there are no hydraulic lifters. The valve clearance is regulated by the selection of pusher cups (size 31), which have different bottom thicknesses. Candle wells are located in the center of the cylinder head.
Mitsubishi Lancer engine timing drive 10 1.5 l.
The timing drive is chain and usually does not cause problems. All labels for installing a new chain are available. But experienced craftsmen make their own additional marks. Do not forget that there is a phase shifter on one shaft, which works due to oil pressure, which is regulated by the MIVEC solenoid valve. The life of the chain is not known for certain, because against the background of hardened valve stem seals, sunken piston wheels and wild oil consumption, this is not a problematic part of the motor at all. Timing drive diagram for Mitsubishi Lancer 10 1.5 onwards.
Characteristics of the engine Lancer 10 1.5 l.
- Working volume - 1499 cm3
- Number of cylinders - 4
- Number of valves - 16
- Cylinder diameter - 75 mm
- Stroke - 84.8 mm
- Timing Drive - Chain (DOHC)
- HP power (kW) - 109 (80) at 6000 rpm in min.
- Torque - 145 Nm at 4000 rpm. in min.
- Maximum speed - 178 km / h
- Acceleration to the first hundred - 14.3 seconds
- Fuel type - gasoline AI-95
- Fuel consumption in the city - 8.9 liters
- Fuel consumption in the combined cycle - 7 liters
- Fuel consumption on the highway - 6 liters
This motor is rather weak for the Lancer, but for the Mitsubishi Colt the engine fits perfectly. Before buying a used Mitsubishi Lancer X 1.5, think about how much it will cost you to repair the power unit.
Mitsubishi Group produces Lancer X cars with a wide range of power plants, satisfying any consumer demand. Economy can provide engines with a volume of 1.5 liters, but if the car owner wants to have the most dynamic car, then you should make your choice towards engines of 2.0 and 2.4 liters.
The engines are paired with various types of transmission. On the Mitsubishi Lancer 10, you can find a five-speed mechanics and a CVT.
ATTENTION! Found a completely simple way to reduce fuel consumption! Don't believe? An auto mechanic with 15 years of experience also did not believe until he tried it. And now he saves 35,000 rubles a year on gasoline!
At the beginning of the release of Mitsubishi Lancer 10, it was planned to start the engine line with a low-power 1.3 liter engine. Its power was not enough for a fairly dynamic ride, so the manufacturer had to abandon the mass production of Lancer X with such a power unit.
A more powerful engine, which nevertheless got into mass production, was a 1.5 liter 4G15 engine with a capacity of 109 horsepower. It provided acceptable overclocking, but its resource was insufficient. This is due to design flaws and the high sensitivity of the motor to the quality of the oil and the frequency of its replacement.
In 2011, to replace the unsuccessful one and a half liter engine, the Mitsubishi Group began to install power plants with a volume of 1.6 liters on the Lancer X. The power increased to 117 horsepower made the dynamics better and acceleration to 100 km / h was reduced. The new engine was a success and managed to completely replace the 1.5 liter version in 2012.
The appearance of the Mitsubishi Lancer 10 is sporty, which requires an appropriate power unit in the engine compartment. Therefore, internal combustion engines with even greater power appeared in the line. The first of these is a 4b10 engine with a volume of 1.8 liters and 143 horses. The second engine was a two-liter 4b11 engine, which had a power of 150 hp. With. Both engines were developed in close cooperation with Kia-Hyundai specialists, therefore they are also called G4KC and G4KD respectively in the international market.
In 2012, the two-liter engine was no longer used on the lancer 10. This is due both to the increased taxation of a larger engine, and to the lower liter power of the power plant.
For the North American consumer, the Lancer 10 is produced with an engine capacity of 2.4 liters. The same motor is used on. A turbine is also used with it, which allows you to reach 176 horsepower. Tuning this power plant brings an increase in power up to 190 hp without loss of resource. The motor was developed jointly with Kia-Hyundai and received international designations G4KE and 4B12.
Characteristics of cars with different power plants
Mitsubishi Lancer X 1.5 mt shows the best economy. The average consumption of gasoline when moving in mixed mode is about 6.5 liters per 100 km. During city driving, fuel consumption rises to 8.2 liters. Departure to the track will be accompanied by the lowest consumption, which is no more than 5 liters.
Using an automatic transmission on a Mitsubishi Lancer 10 1.5 atm increases fuel consumption. For 100 kilometers on the highway, 6 liters will be required. In city traffic, the car will consume 8.9 liters. In the case of mixed driving, fuel consumption will be about 7 liters. Acceleration to hundreds will range from 11.2 for mechanics to 15.3 in the case of at.
With 1.6 liter engines, a classic 4-speed automatic gearbox and a 5-speed manual are used. The Lancer 10 sedan with such an engine has the characteristics shown in the table below.
Mitsubishi Lancer 10 performance table with 1.6 liter engine
An engine capacity of 1.8 liters contributes not to economical, but to dynamic driving.
Mitsubishi Lancer X performance table with a 1.8-liter power plant
With 2.0-liter engines, a wide variety of Lancer X cars are produced. This includes all-wheel drive 4wd and ralliart sports cars, which have been produced since 2008. Gasoline consumption per 100 kilometers for various Lancer 10 models is shown in the table below.
Mitsubishi Lancer X 2.0 fuel consumption table in various versions
Acceleration to 100 kilometers per hour using the 2.0 engine was done in less than 10 seconds. The characteristics of the engine and gearbox are maximally sharpened to obtain the best dynamics.
Engine life and typical problems that arise during operation
The most problematic is the 1.5 liter engine. the failure of the design led to the fact that the engine loses compression already at 50-60 thousand on the odometer. This is due to the occurrence of piston rings. To eliminate the malfunction, diagnostics, decoking, and in some cases a complete engine overhaul will be required.
Quite often, a 1.5 liter engine scares the car owner with a Check engine indication. The check is on not so much because of problems with the motor, but because of errors in the firmware. ECU software update solves this problem. The electrical circuit also sometimes fails.
The smallest motor is the most sensitive to the quality of the lubricant. Even if all the terms for changing the oil are observed, the repair of the internal combustion engine will come with a run of 120 to 150 thousand km. The resource of the power plant is extremely small. With a run of more than 80 thousand km, extraneous noise is observed. In addition to the fact that the engine runs loudly, it also troit often. The power plant was so unsuccessful that the Mitsubishi Group had to withdraw it from production.
The power unit of 1.6 liters after 100,000 km begins to eat oil. Maslozher is from 100 to 300 grams per 1000 km. The motor lives for about 200 thousand km, after which a major overhaul is required.
The 1.8 engine does not have hydraulic pushers. After 120 thousand km, problems begin with adjusting valve clearances.
Cylinder head 1.8 liter engine
The power plant with a volume of 1.8 has the largest resource among the entire line of engines. A bulkhead may be required with a run of more than 300 thousand on the odometer.
The main malfunction of a two-liter engine is the clogging of the catalyst. To fix the problem, you will need to put a special insert. The spider not only replaces the standard catalyst, but also reduces exhaust swirl. The resource 2.0 of the engine is about 250-280 thousand km.
The feasibility of repair and replacement with a contract motor
There is no unequivocal answer that it is better to repair a native or used contract engine. Much depends on the condition of the engine block. If there is thermal distortion of the cylinders, then it is recommended to take a closer look at purchasing a motor taken from another car. The price in this case will range from 20 to 50 thousand rubles.
Contract engine Lancer X 4A91 1.5
Contract engine Lancer X 4A92 1.6
Contract engine Lancer X 4G93T 1.8
Mitsubishi Lancer X 4B11 2.0 contract engine
Contract engine Lancer X 4B12 2.4
It makes sense to purchase spare parts if the motor requires surface repairs, or if you are sure that the overhaul will provide a sufficient resource. The cost of overhaul is from 10 to 20 thousand rubles. If it is supposed to perform operations with one's own hands, then the car owner must know the device of the power unit.
