Why Lancer 9 eats oil over time

Mitsubishi Lancer 9-series - one of the most popular models of the early 2000s was produced by the company from 2003 to 2008. This is enough reliable car, a real hard worker and at the same time quite comfortable. The combination of these qualities in a coupe with an attractive price allowed the car to win the appreciation of many motorists. However, it is not devoid of some significant drawbacks, one of which is zhor engine oil(MM) at the turn of 150 thousand kilometers. How much the motor of lubricant eats, largely depends on the driving style, quality lubricants and frequency Maintenance.

The increased oil consumption of a Mitsubishi Lancer during this run usually indicates the occurrence of oil scraper rings and wear of the engine head valve caps. Carrying out an operation to eliminate this malfunction is quite costly, but other malfunctions can also affect the zhor, which can be eliminated independently or at minimal cost.

Causes of increased grease consumption

To prevent the destruction of the contacting surfaces of the engine due to the lack of lubrication in the system, its level should be checked systematically. If the engine consumes grease within 1 liter per 15 thousand kilometers, then you should not worry too much, this is a natural waste, which the manufacturer warns about. It may also be due to the driving style and operation of the car in difficult conditions (driving at high speeds, operating in urban conditions, driving on increased revs). In this case, it should not be surprising that the car has an increased oil consumption.

The manufacturer offers a high-quality expensive MM for the Mitsubishi Lancer engine lubrication system, which many are trying to change to cheaper counterparts, which can lead to its significant burnout. The use of low-quality oil in addition to it increased consumption can lead to significant wear of the rubbing surfaces and, as a result, to overhaul the motor or replace it. Therefore, first of all, you should replace the lubricant with the one recommended by the manufacturer, and put the car into a gentle mode of operation. In many cases, this will help to significantly reduce lubricant consumption.

The next malfunction that can affect the Lancer's oil consumption is damage to the gasket between the cylinder block and the crankcase. It is quite simple to identify this malfunction by visual inspection of the car engine. Where the grease seeps out, characteristic drips and deposits form. The malfunction is eliminated by replacing the sealing gasket. You can make repairs yourself, for which you need to remove the engine crankcase protection (if any) and unscrew the bolts securing the crankcase to the cylinder block. After removing the old gasket, the adjoining metal surfaces are inspected and cleaned, if necessary. After installing a new gasket, the pallet is screwed on and the engine protection is installed.

When operating a car without engine crankcase protection, cracks, dents and holes may appear on it as a result of contact with surfaces. Through these damage, lubricant flows out, which must be constantly replenished. This is eliminated by replacing the Mitsubishi Lancer engine pallet. Oil consumption is also possible through a loosely wrapped drain plug of the engine sump or its worn thread or O-ring. Revealed external examination, is eliminated by replacing the part. Grease can also leak out through a loosely screwed oil filter engine.

Troubleshooting

If a visual inspection failed to reveal an MM leak, or after its elimination the lubricant consumption did not decrease, then, most likely, the matter is in the stuck piston oil scraper rings or oil scraper seals of the engine valves. With these malfunctions power plant the car at increased revs from exhaust pipe there is a bluish smoke, turning into dark blue as the parts wear out, and the engine loses power. You should be aware that the consequence of this malfunction is the burnout of the honeycomb of the catalyst of the exhaust gas removal system.

Unburnt grease is deposited on the honeycomb of the catalyst, as it heats up, it burns out together with the cells, which leads to the destruction of this element. Exhaust catalyst cost big money, therefore, if an increased oil consumption in the engine is detected, measures must be taken to identify the malfunction and eliminate it. Car chemistry manufacturers offer a variety of decoking products piston rings, guaranteeing one hundred percent success. However, in most cases, attempts to decarbonize the buried rings with the help of chemicals usually lead to nothing, but only lead to unreasonable costs and wear and tear of parts.

You can check the condition of the rings and oil seals of the engine using a compression gauge. To do this, the candles are turned out of the head, and the compression in the cylinders of the Mitsubishi Lancer engine is measured. If it matches technical specifications, then, most likely, the hardened valve stem seals do not completely remove the grease, and it flows down the valve stems onto the seats, and, burning, forms deposits and bluish smoke. If the compression is below the specified characteristics, then a small amount of clean engine oil (20-30 ml) should be poured into the cylinder, which should completely cover the cylinder piston. After that, the compression in the cylinder is measured again. If it has increased, then the matter is in worn or stuck rings, cylinder or piston wear. Also, the cause of low compression and the ingress of MM into the combustion chamber can be deep seizures on the walls of the engine cylinder.

If, after adding MM and checking the pressure in the cylinders, the compression remains at the same level, then the malfunctions should be looked for in the valves of the cylinder head. The flowing off grease, when burned, forms carbon deposits on the valve discs and head seats, leading to their leaky closing or burning out.

Debugg

It is best to replace the oil scraper rings and seals at a service center specializing in engine repair. Despite the seeming simplicity, this operation is quite difficult and has many nuances that only specialists know. To carry out a quality repair, a specific tool is required, which costs a lot of money. To carry out the work, you will definitely need a bore gauge of a certain size to measure the ovality of the cylinders, a torque wrench, pliers and mandrels for removing rings.

When selecting spare parts for this repair, your choice should be stopped on original parts, since the cost and labor costs are quite high, and low-quality spare parts will nullify all efforts. Together with the replacement of the rings, it is recommended to also change the crankshaft oil seal, spark plugs and cylinder head bolts. Cylinder head bolts are considered a disposable part and can break off if reused, resulting in additional repairs and costs.

Why does the engine absorb a lot of lubricant

The repair of the piston group is a long and expensive process, which is better to entrust to professionals who can carry it out within 2 - 3 days. The selection of the necessary spare parts can be done by yourself, but in this case, the service center may refuse to provide a guarantee for the work performed or will make it as minimal as possible. Also, in this case, warranty repair may be refused, the repairmen will always have a link to the low quality of the supplied materials.

After replacing the rings and caps, the engine must be run in under gentle conditions; driving at high engine speeds should be avoided. In order not to face the solution of the problem of increased consumption of engine oil of a Mitsubishi Lancer car for as long as possible and to carry out an overhaul of the engine, it is enough to follow a few simple rules. To do this, you need to systematically check the MM level, use the lubricants recommended by the manufacturer and high-quality fuel. Also, you should not operate the car in difficult conditions, at extreme temperatures and timely carry out maintenance.

Why does the car "eat" a lot of lubricant?

And a little about the secrets of the Author

My life is not only connected with cars, but also with repair and maintenance. But I also have a hobby like all men. My hobby is fishing.

I started a personal blog in which I share my experience. I try a lot of things, various methods and ways to increase the catch. If interested, you can read it. Nothing more, just my personal experience.

Attention, only TODAY!

Yes, we wrote such a peculiar name in the title of the article. This topic is dedicated to fixing one of several possible problems related to the fact that Lancer "eats" butter... The elimination of this is the analysis of the Lancer 9 engine and the replacement of various parts. Well, let's start:

I'll tell you the background: the first urges came after that. when, when changing the oil, I was asked in the service "was there any oil there at all?" I change the oil every 10,000 runs and monitor its level. After changing the oil, I began to monitor the level more often and realized that, like Kamaz! After a short topping up of oil, I decided to change the rings with all that it implies. I called Sergey (Gear of War) for help for which a special THANKS to him!

So, for the overdue work, the following spare parts were purchased:
1.MD 348631 - Oil filter (Original 1pc.)
2.MD 342397 - Cylinder head gasket (original 1 pc.)
3.MD 342281 - Gasket, cylinder head cover (original 1 pc.)
4.MD 339118 - O-ring (original 4 pcs.)
5. LX 1076 - Air filter (Mahle 1 pc.)
6.MD 324702 - Thermostat housing gasket (original 1pc.)
7.MD 377999 - Front crankshaft oil seal (original 1pc.)
8.MD 372536 - Engine camshaft oil seal (original 1pc.)
9.12019900 - Oil scraper outlet cap (Ajusa 8pcs.)
10.12019800 - Inlet oil scraper cap (Ajusa 8pcs.)
11. MD 361982 - Set of piston rings (original)
12.MD 355550 - Cylinder head bolt (original 10pcs.)
13 Cabin filter Sakura 1 pc.
14. candles NGK BKR6E-11 4 pcs.
15. Oil motul 8100 x-cess 5w40 5l.
16. Antifreeze of Green color Japanese TCL LLC 6 l.

In general, we drove the car into the garage and began to disassemble the Lancer 9 engine, first draining all the fluids, except for the brake and power steering (a). Next are the photos of the process:

Actually our patient is a pretty cute Lancer 9

We begin to disassemble the Lancer engine:

We remove all attachments and remove Lancer engine valve cover, we see this

Next, we unscrew the cylinder head bolts and remove the head, what we saw did not surprise us in principle, we saw in general what we expected, judge for yourself by the condition of the pistons and rings:

The valves were in quite normal condition:

Next, we take out one piston at a time, remove the old rings, and use them to clean off all carbon deposits from the pistons, while spraying Carb with it. Cleaner.
By the way, the earbuds were in excellent condition.
Here's what happened after replacing all the rings and installing all the pistons in place:

After replacing the rings, we begin to collect Lancer engine 9 back. Then I did not take a photo, tk. I fixed everything basic, and the assembly is already a matter of technology and those who work with them know how everything is assembled.

P.S. during these works, it is imperative to change the gaskets of the candle wells (when I took mine off, they were just oak and let oil through), the valve cover gasket must be replaced (the same story as with the candle wells), the candles were also not in the best condition.
Sea of emotions Thank you Seryoga again!
And by the way, now mine Lancer does not eat oil.
I hope my report will help someone!

P.S. Note from the editors of the site: as we can see, the process is quite laborious, so it is advisable not to disassemble the engine without knowledgeable people.

Inline motors Mitsubishi lancer 9 with 4 cylinders of 1.3 and 1.6 liters with one camshaft have power 82 and 92 Horse power accordingly, and the two-liter internal combustion engine, which is equipped with two camshafts, has a power of 135 horsepower. Difficult operating conditions for vehicles in our country significantly reduce the resource of these rather powerful units and, over time, lead to difficulties with increased oil consumption. More on this later in the article.

The increased consumption of lubricant on the Mitsubishi Lancer 9 can be very serious. If the engine consumes 1-3 liters of oil per 1000 km, you will have to renew the fluid all the time. Thus, over 10-15 thousand km, more than 15 liters of lubricant will pass through the system.

In the absence of leaking oil seals, seals and gaskets, the reasons for the increased consumption of engine oil may be the following:

Increased oil consumption due to engine valve oil seals and wear of the guide bushings

Valve oil seals in motors lose elasticity over time and when high mileage harden. On one engine, they can serve only 50 thousand kilometers, while on the other they have to be changed after 150 thousand kilometers. It is worth noting that in conditions of a high mileage of a car, replacing oil seals may not solve the problem with a high consumption of lubricant.

The valve stem seals can wear out when overheated, both internal (invisible) and visible, which is fixed by a temperature sensor. In the latter case, the problem lies in the failure of the cooling system, and in the first it is very difficult to diagnose the malfunction, although it is usually associated with poor fuel quality. With incomplete combustion of fuel, processed products form deposits and carbon deposits inside the combustion chamber, as a result of which the walls of the engine lose thermal conductivity, and also provoke overheating, which is not detected by the temperature sensor.

Replacement valve stem seals do it yourself without replacing the valve guides and troubleshooting may not give the necessary results and the Mitsubishi Lancer 9 engine will continue to consume oil. Considering the pumping effect that occurs when the oil seals are installed on worn guide bushings, the oil consumption may even increase.

Oil scraper rings, one of the reasons for an increase in oil consumption due to wear, ring sticking, coking, scuffing on the cylinder block

One of the main reasons for grease is the occurrence and loss of mobility of the oil scraper rings when the Mitsubishi Lancer 9 engine overheats. When using low-quality fuel, the rings coke and cease to function normally. In addition, when the coke clogs the grooves and the rings fall on it, friction will cause them to wear more actively against the cylinder walls.

Under conditions of mechanical wear, seizures appear on the liner, which also leads to increased oil consumption. Compression rings are also capable of creating a pumping effect in which the oil scraper rings become stuck and oil consumption increases. In this case, replacing the rings will not give a positive result if you do not squander the block under new size, and also do not micro-sand the surface. It should be said that wear in the block can change the geometry of the cylinder:

Taper.
Ellipticity.
Ovality.

This causes a knocking sound when the motor is running. It happens to be connecting rod as a result of oil starvation.

Poor quality fuels and other reasons that increase oil consumption

What can the fight to reduce toxic emissions and environmental friendliness lead to? Clearances must be optimized in the engine and its components. The smaller these gaps are, the faster they are clogged with products of improper combustion of fuel. As a result, high oil consumption begins, and manufacturers write about the need to use high-quality gasoline. The following reasons can aggravate the situation:

Operating the machine at reduced speed.
Use of unsuitable fuel.
Long idle work.
Driving with a cold engine.
Systematic trips over short distances.

The factors listed above prevent the motor from reaching the operating temperature at which coke and carbon deposits are burned. The use of AI-98 fuel instead of the 92nd also contributes to the formation of carbon deposits, since high-octane fuel has a lower combustion rate. Anything that does not burn can form carbon deposits and clog the catalyst.

Engine ga4 oil consumption reduction additive

Increasing the viscosity of the lubricant or using other brands of oils usually does not give consistent results. Regular flushing of the system special fluids makes it possible to keep the engine clean before changing the oil. In the course of flushing the engine, the inner surfaces are cleaned of deposits and carbon deposits, and also make it possible to decoke the rings and give them the same mobility.

The use of a special cermet additive for the engine helps to restore the resource and protect against wear. For example, Engine GA4 fluid can be used, which is designed for four liters of oil and does not change the physical characteristics and chemical composition of the lubricant.

Pro tips on how to reduce oil consumption on the Lancer 9

To reduce oil consumption on the Mitsubishi Lancer 9, it is necessary to replace the valve seals, oil scraper rings and guide bushings, but it should be borne in mind that self replacement these elements do not always give a positive result.

Lancer 9 inline engines with four cylinders of 1.3 and 1.6 liters with one camshaft have 82 and 92 hp. respectively, and the two-liter engine is equipped with two camshafts and has a power of 135 hp. The harsh operating conditions for cars in our country reduce the resource of these rather powerful units and lead to the problem of increased oil consumption.

About increased consumption

The increased oil consumption on the Lancer 9 can be so serious that when the scheduled maintenance period is reached, a filter replacement can be dispensed with. The fact is that if the engine consumes from 1 to 3 liters per 1000 kilometers, then you will have to constantly renew the fluid, since over 10-15 thousand kilometers more than 15 liters of lubricant will be passed through the system.

We will talk in detail about the reasons for the oil consumption further, but in the absence of leaking gaskets, seals and oil seals, the reasons for the increased consumption may be:

wear of valve seals and guide bushings;
coking or wear of the oil scraper rings;
the presence of a seizure on the cylinder block.

There was a separate detailed one on our website about changing the oil.

Oil consumption due to valve seals

Over time, valve seals in engines lose their elasticity and harden at high mileage. On one engine, they have to be changed after 50 thousand kilometers, while on the other they can last more than 150 thousand kilometers. Note that with high mileage, replacing oil seals may not solve the problem with lubricant consumption.

The valve stem seals wear out when overheated, both visible (it is fixed by the temperature sensor) and invisible (internal overheating). In the first case, it is a malfunctioning cooling system, and in the second case, it is very difficult to diagnose a malfunction, and it is usually associated with poor quality gasoline. With incomplete combustion of fuel, processed products form carbon deposits and deposits inside the combustion chamber, due to which the walls of the engine lose thermal conductivity and provoke overheating, which is not detected by the temperature sensor.

Self-replacement of the valve stem seals without troubleshooting and replacing the valve guides may not give the desired results and the Lancer 9 engine will continue to consume oil. If we take into account the pumping effect that occurs after installing new oil seals on worn bushings, the Lancer 9 oil consumption may even increase.

The occurrence of the rings

Oil scraper rings in case of engine overheating japanese car lie down and lose mobility - this is one of the main causes of oil consumption. When using low-quality fuel, the rings begin to coke and stop functioning normally. Also, if the coke clogs the grooves and the rings fall on it, they will wear out more actively when rubbing against the cylinder walls.

With mechanical wear, scuffs appear on the liner, which also leads to the fact that Lancer 9 eats oil. Compression rings also create a pumping effect when the oil scraper rings are buried and the flow rate increases. Replacing the rings will not give positive results if the block is not bored to the new size and the surface is not micro-sanded. Block wear changes the cylinder geometry:

ovality;
ellipticity;
taper.

This causes a knocking sound when the engine is running. It can be srodny due to oil starvation.

The root cause of oil consumption

What can the fight for environmental friendliness and reduction of toxic emissions lead to? In the motor and its elements, the clearances must be optimized. The smaller they are, the faster they become clogged with products of defective combustion of gasoline. In this regard, the zhor of Lancer 9 oil begins, and manufacturers write about the need to use high-quality fuel. The following reasons can aggravate the situation:

frequent short-distance trips;
driving with a cold engine;
long idling;
use of unsuitable fuel;
operation of a car at a reduced speed.

The above factors do not allow the motor to reach operating temperature, at which carbon and coke burns out. The use of AI-98 fuel instead of the 92nd also causes the formation of carbon deposits, since the combustion rate of high-octane fuel is lower. Anything not combustible forms carbon deposits and clogs the catalyst.

We extend the life of the motor

Increasing the viscosity of the oil or using other brands of lubricants will usually not give consistent results. Constant flushing of the system before changing with special fluids helps to keep the motor clean. In the course of flushing the engine, the internal surfaces are thoroughly cleaned of carbon deposits and deposits, and also help to decarbonize the rings and return them to their former mobility.

The use of a special cermet additive for the motor contributes to the restoration of service life, compensation and protection against wear. For example, you can use Engine GA4 fluid, which is designed for four liters of oil and does not change the chemical composition and physical characteristics of the oil.

A metal-ceramic protective layer is formed on the coupled friction pairs, which restores the geometry of the cylinder, increases compression and reduces or even prevents oil consumption, depending on the level of wear and the causes of the problem. The composition does not affect the valve seals and rings.

To optimize combustion processes and get rid of the problem of incomplete combustion of fuel, it is necessary to use an additive in gasoline such as FueleX. It increases the combustion rate and temperature, resulting in complete combustion. Carbon deposits, coke and deposits do not appear and the engine remains clean.

How to eliminate oil zhor?

Now let's figure out if Lancer 9 eats butter what to do? Replacing valve stem seals is not a very difficult job, but without special tools and skills, you cannot do it. Also, when replacing with your own hands, you may install something incorrectly, which will cause high consumption oil Lancer 9. Replacement of these elements in some cases helps to solve the problem, but it is impossible to talk about one hundred percent efficiency.