Japanese gasoline engines 4G63S4M, 4G64S4M, 4G69S4N installed on Mitsubishi found their application on Hover. Diesel GW4D20 - motor own development as well as the transmission. The advantages and disadvantages of this machine are quite subjective. "What is good for a German, death for a Russian." For those who are accustomed to driving with a "breeze" Hover is clearly not suitable. Well, it does not accelerate, there is not enough power, it is rather weak.
But is this characteristic a disadvantage? We will look for the answer in the instructions for use and maintenance, where it is indicated that maximum speed for gasoline it is 100 km / h, and for diesel - 90 km / h. So needless to say that it does not pull. He who is forewarned is armed. The frame structure of an SUV with engine displacement of 2.0 and 2.4 does not provide for cross-country racing.
The transmission of our own production is designed to work in tandem with the engine. When trying to overclock and ask for more Horse power than it is, the gearbox is experiencing serious stress, which leads to premature wear, both of the gearbox itself and power unit... When commissioning a new Great Wall Hover, it is necessary to observe the break-in mode, which is 1000 km for gasoline 4G63S4M, 4G64S4M, 4G69S4N, and 1500 km for diesel GW4D20. The same requirement applies to engines that have passed overhaul... When turned on all-wheel drive permissible travel speed is: 4H-40 km / h, 4L-30 km / h. At the same time, the use of 4WD is allowed only on slippery roads and in a straight line. Failure to comply and ignorance of these rules leads to problems in the box, axles and transfer case.
Hover engine and transmission resource can be extended
To increase the service life and resource, it is necessary to comply with the maintenance regulations and operating rules:
- Observe the speed limit.
- Check oil level daily.
- Change the engine oil every 8000 km. mileage.
- V winter time start driving after warming up.
- Do not run the diesel engine at idle speed for more than 20 minutes, avoid traffic jams.
- Use only high quality fuel.
- After long trips, do not turn off immediately, let it cool down with the engine running.
- Do not use the machine to transport heavy items.
All the rules are spelled out in the instruction manual. And unfortunately, some of them are simply unrealistic to fulfill due to subjective and objective reasons.
Life can be prolonged with the help of RVS Master tribotechnical compounds. Due to its properties and principle of action, which is based on chemical reaction replacement of iron atoms with magnesium atoms, they are rightfully called repair and reduction compositions. The reaction is possible only if there is: a cast-iron block for the engine from which the Hover is made; ferrous metals used in the manufacture of bearings, gears and transmission shafts. As a result of the use of the tribotechnical composition RVS-Master, a cermet layer is formed on the friction surfaces that are subject to wear. And this is not a temporary film, as is the case with oil additives. In addition, a constant presence in the oil is not required. One or two treatments are enough, depending on the degree of wear, to increase the resource up to 120 thousand km. mileage. Repair and restoration compositions allow:
- Restore compression
- Reduce oil consumption
- Increase power and throttle response
- Stabilize work idle move
- Restore the contact patch on the gear teeth
- Protect against wear
- Facilitate cold start
- Reduces noise and vibration in both the motor and transmission
- Easy and smooth gear shifting without kicks and bumps
The capabilities of tribotechnical compositions are due to the characteristics of the newly formed cermet layer, which has an abnormally low coefficient of friction, is resistant to shock loads and is plastic, protects against oxidation and corrosion. As it wears out, the layer can be restored by repeated treatments.
For gasoline engines 4G63S4M, 4G64S4M, 4G69S4N, a composition calculated for 4 liters of oil is suitable.
For diesel GW4D20 - a composition designed for 6 liters of oil.
Despite the fact that the volume transmission oil in the gearbox - 3.0 liters., in the front axle - 1.8 liters., in the rear axle - 2.7 liters., we recommend using the above compositions.
Great Wall Hover fuel and consumption.
It is recommended to use at least AI-93 gasoline and only good quality diesel fuel. Such requirements are specified in technical characteristics car. The use of fuel with a low octane and cetane number leads to detonation, the power of the already non-thrust engines decreases, and consumption increases. In addition, the content of impurities in low-quality fuel accelerates the process of mechanical wear of the power unit parts. Particularly sensitive is the GW4D20, which is equipped with a Common Rail injection system.
The use of low-quality diesel fuel leads to incomplete combustion, which in turn makes it difficult to start the diesel engine in cold weather, the formation of carbon deposits in the combustion chamber, on rings and injectors, and as a result, the appearance of black smoke from exhaust pipe... A high sulfur content in diesel fuel, together with condensate, form sulfuric acid, which causes chemical corrosion of the cylinder walls Hover engine and pistons. Ultimately, the above reasons leading to failure fuel pump, fittings, and the power unit itself.
For petrol 4G63S4M, 4G64S4M, 4G69S4N
For diesel GW4D20
Their use allows:
- Rebuild spray torch
- Normalize idle operation
- Eliminate dips and jerks during acceleration
- Normalize acceleration dynamics
- Reduce consumption
- Compensate for the lack of lubricants in the fuel
- Remove carbon deposits from injector
- Restore line pressure
The formulations do not contain chemical solvents and do not lift dirt from the tank, do not change the composition and properties of the fuel.
Gur to Hover H3 and H5
The principle of operation and maintenance is no different from the hydraulic boosters of other car brands. But the build quality and seals are poor. In case of leakage and leakage of fluid through the seals and oil seals, which can occur on a new car, it may be sufficient for the whistling and hum of the power steering pump to appear. What to do if the warranty repair was denied? Timely use of the power steering pump to restore the pump will allow to restore the linear dimensions of the parts, reduce the gaps on friction pairs, as a result, remove the hum and howl, and make the steering wheel light.
Repair and restoration compositions - new technology in repair, reliable protection against wear and an increase in the resource of units and machines.
From the history of the model
ON THE CONVEYOR: since 2005.
BODY: station wagon.
ENGINES: petrol - P4, 2.0 l, 122 hp; 2.4 l, 130 and 136 hp; diesel - P4, 2.0 l, 150 hp; 2.8 L, 95 HP
GEARBOXES: M5, A5.
DRIVE: rear, full.
RESTYLING:
2010 - changed bumpers, radiator grill and lighting equipment; redesigned interior; control transfer case became electronic;
2011 - the front part was completely changed: bumper, fenders, lighting equipment and radiator grill; redesigned rear: bumper and trunk lid; appeared "machine".
CRASH TESTS:
2007, "Hover H2", C-NCAP method: overall rating - three stars, frontal impact - 10 points (63%), frontal impact with 40% overlap - 12 points (77%), side impact - 15 points ( 92%);
2010, "Hover H3", Dmitrovsky polygon, Euro NCAP method: overall rating - four stars, 11.7 points out of 16 possible (73%);
2011, "Hover N5", Dmitrovsky proving ground, Russian methodology - the Chinese off-road vehicle meets all safety requirements in force on the territory of the Russian Federation.
TWINS
The Chinese have mastered the cloning technology quite well, and in the case of the Hover, no gene mutations have occurred. The twin of the Japanese "Isuzu-Axiom" turned out to be quite nice and solid. Initially, the car was made only in China, but already in April 2010, the assembly was established in Gzhel near Moscow. The Russian VIN is located under the hood, on the engine shield on the left, the Chinese one is stamped on the frame, behind the rear right wheel, when registering it is entered simply as the frame number. Our build, unfortunately, does not differ for the better. The body parts are poorly fitted, and already in the service it is necessary to finish the car, eliminating unacceptably large gaps. There were cases when, due to hack assembly, leaks appeared in the openings in the cabin rear doors and trunk lids.
The Hover's body paint is not famous for its high quality, but it also has no serious flaws. The biggest problem was the appearance of rust under the cover of the fifth door due to the poor design of the latter. But it was changed already at the first restyling. The metal of the body is not galvanized, but with proper care it at least holds up.
THE QUIETER YOU GO, THE FURTHER YOU'LL GET
Gasoline engines are borrowed from Mitsubishi and can be found on Pajero and Outlander. On the first "Hovers H2" under the hood, even the symbolism was preserved Japanese manufacturer... All motors are reliable and maintainable. However, when adjusted to modern toxicity standards, they lost their dynamics. Although the Japanese, under the same restrictions, remove much more from their engines.
Strangely enough, during the first modernization ("Hover N3") the 2.4 liter engine (4G64 with 130 hp), which frankly did not pull, was replaced with an even less powerful 2-liter (4G63, 122 hp). During the second work on the errors ("Hover H5"), the old displacement returned (4G69, 136 hp), but did not add enthusiasm. To help the owners, some services offer a flashing of the control unit. The service is efficient and highly demanded.
Contrary to the permission to use 92nd gasoline, it is recommended not to save and pour 95th - because of the tendency of the engine to detonate. Fuel consumption can be considered adequate to the engine displacement and the weight of the car. You shouldn't save on oil changes either. Since this year, the manufacturer has reduced the interval between maintenance to 8000 km, and this is quite justified, especially when operating the Hover outside good roads... Most of the malfunctions are supplied by the motor equipment. Most often, the crankshaft sensor and lambda probes fail. In the first case, the problem is in the quality of the unit, and in the second, half the battle is in our gasoline. Sometimes there is a malfunction of the idle speed regulator, otherwise there are no more defects than those of well-known manufacturers.
There are no complaints about diesel engines. A very rare atmospheric volume of 2.8 liters migrated from the Axiom and is found only on pre-styling H2 models. The supercharged 2-liter diesel is already a joint German-Chinese development, but it became available only on the H5. With its high reliability, the new diesel, unfortunately, is no less lazy than the gasoline brothers. A significant turbo lag is released only after 2000 rpm, which is extremely uncharacteristic for diesel engines. But here, too, a flashing will come to the rescue.
DOSED LOAD
The manual transmission is quite reliable. She suffers mainly due to unprofessional tuning. When installing additional protection, its airflow is disrupted, causing overheating, from which the bearings primarily suffer. The same is observed if the oil change intervals are not followed. Fortunately, the box is structurally simple and maintainable.
The clutch is not renowned for its high reliability. The average lifespan is about 80,000 km, and that is greatly reduced when driving off-road. You will find reinforced analogues on the spare parts market. They will last longer, but the switches will become more rigid. At one time on the H5 there was a defect in the clutch basket, which is why the gears turned on poorly on a warmed-up car. Some Hovers were ringing release bearing... For reasons unclear until the end, his body touched the petals of the basket. The defect is treated by replacing the assembly with a selective selection of parts. There is a small adjustment of the pedal travel, but contrary to rumors, this operation does not significantly affect the life of the linings.
Automatic gearbox "Aisin" is available only on H5 with diesel engine... There are no problems with it.
FULL FORWARD
The transfer case control lever on H2, when switching to the H3 model, gave way to a button (it is also found on the transitional H2).
On all Hovers front axle activated through an electronic clutch that controls the connection of the left wheel shaft to the output shaft front differential... With the clutch disengaged, free rotation of the front right wheel causes free rotation of the differential, as a result of which other transmission elements do not rotate.
The all-wheel drive activation sensor most often becomes the culprit of malfunctions - the impossibility of connecting or spontaneous blocking of the clutch.
The mechanical part of the all-wheel drive does not cause problems. Servicing the transfer case is reduced to a timely oil change. The bridges are reliable and designed for increased loads. The main thing here is to comply with the service regulations. There was a period when there was a factory marriage of the internal anthers of the CV joints. For no apparent reason, holes appeared into which the grease was squeezed out. Timely replacement of covers helped.
There are spare parts on the market for fine-tuning the model: other main pairs, differentials with locking. Some services offer to raise the body. But even without fine-tuning, the off-road capabilities of the Hover meet the expectations of most owners.
DISAPPEARING APPEARANCE
Hover boasts frame structure and reliable suspension. The only reason for criticism is the rear shock absorbers on the restyled H3 and H5. Owners complain about their excessive rigidity, which causes the rear of the car to bounce on bumps. But you can choose softer analogs. The silent blocks of the front upper levers travel 80,000 km, and the lower ones - about 100,000. Balls serve about 60,000 km and usually die in pairs. Silent blocks rear suspension live about 100,000 km.
The braking system is poorly calculated. Due to the heavy weight of the car, the pads wear out very quickly: the front ones take 20,000 km, and the rear ones take 35,000. In this case, the front brake discs enough for 80,000 km, and the rear ones are rarely changed at all. Under heavy use, they turn sour by 20,000 km brakes... It is worth doing their prevention every time you change the pads. Steering malfunctions are found mainly on pre-styling H2. By about the age of five, the power steering pump may fail. The lower steering cardan connecting the bevel gear and the rack is also weak. On the H3, this design was abandoned. Rails rarely break, and tie rods and tips are changed separately.
WEATHER IN THE HOUSE
At first, the salon almost completely migrated from the Axiom. But during the modernization on the N3, they introduced their own version. Although sometimes there are transitional H3s with an old interior. Internal electrical equipment has a separate control unit. Because of his freelance work, the electrician sometimes went crazy. Under the recall campaign, this block was reflashed.
The disadvantage of the air conditioning system was the lack of cabin filter(until this year) and the location of the lower pipe of the refrigerant line, which suffers from reagents. The radiator of the stove requires attention - it sometimes flows on old H2.
The rain sensor can cause damage to the wipers. In winter, when the wiper blades stick to the glass, it cuts off the splines on the leashes due to its operation. Plastic bushings often break in the mechanism; to replace them, you will have to completely disassemble the trapezoid.
During operation vehicle many motorists notice oil leaks from under oil filter... This problem can be relevant both for owners of fairly old cars with high mileage and for relatively new ones.
In the first case, oil flows in the area of the oil filter due to the fact that it may not have a pressure reducing valve, which does not allow overpressure in the system. Most often, the problem manifests itself after a cold start in winter period when oil thickens in the crankcase of the power unit. The thick lubricant simply does not have time to pass through the filter, as a result of which the oil is squeezed out.
As for modern motors, leaks for this reason are not normally allowed, since the presence of an overpressure relief valve in the structure modern systems excludes this possibility. For this reason, oil leakage from under the oil filter housing is a malfunction and becomes a reason for diagnosing the power unit.
In this article, we will talk about the reasons why oil is leaking from the oil filter, what to do if oil is leaking from under the oil filter cap or housing, and how to fix it.
To begin with, the list of reasons why oil squeezes out in the area of the oil filter is quite wide. Most often, the culprit is the owner himself, who has not changed the oil filter for a long time.
- Contamination of the oil filter under certain conditions can lead to the fact that the throughput is greatly reduced, the lubricant practically does not pass through the filter media. At the same time, to protect against engine oil starvation, the filter design usually has a special bypass valve (allows the oil to bypass the filter element), but it is impossible to exclude the possibility of failures during its operation.
If the purity and "freshness" of the filter is beyond doubt, then mistakes could have been made during its installation. If a leak manifests itself immediately after replacing the filter, it is quite possible that the filter itself is not tightened enough or the housing is not twisted (in the case of a collapsible design). This indicates the need for a tie. This procedure is carried out by hand or using a special plastic key-puller.
A prerequisite can be considered the absence of force when tightening, since the constriction leads to ruptures of the sealing gum and deformation of the sealing ring. If this happens, the filter must be replaced with a new one or the problem must be solved by replacing the damaged seal.
We add that very often during installation, car owners and mechanics forget to lubricate the above sealing rubber ring on the oil filter housing with engine oil. This leads to the fact that after twisting the filter, its loose fit is possible, the seal can be deformed or placed at an angle.
In any case, the oil filter must be removed, check the integrity of the seal, lubricate the gum and install the filter element in place, taking into account the peculiarities of its installation. It should also be remembered that a defective oil filter may come across on sale. In such a situation, the body itself may be defective, on which there are cracks, the seal may be made of low-quality rubber, the valve in the filter does not work, etc.
- Excessive engine oil pressure is the second most common cause of oil leaks in the area of the oil filter. An increase in pressure in the lubrication system can occur for various reasons, ranging from significant thickening lubricant combined with an excess of the oil level and ending with certain mechanical faults.
Let's start with the bypass valve. The specified valve is required to relieve oil pressure in case of exceeding the specified value. The valve can be located in the area of the filter holder, as well as on the oil pump itself (depending on the design features). To check, you need to get to the valve and assess its performance.
Jamming in the closed position will result in the element not working. In this case, the device must be cleaned and washed. Suitable for cleaning are gasoline, carburetor flushing fluid, kerosene, etc. Note that, as practice shows, it is better to replace a jammed valve when possible, especially given its relatively affordable price.
- Another reason for leaks associated with the oil filter is the problem with the threads on the fitting where the filter is screwed. If the threads are stripped or damaged, then the filter housing cannot be tightened properly during installation, as a result of which the oil will be squeezed out. In such a situation, it is necessary to change the union or cut a new thread.
It is also worth highlighting that if, that is, it becomes too liquid or viscous, then leaks often occur in the area of gaskets and seals. The oil filter is no exception. The lubricant should be selected in accordance with the requirements of the vehicle manufacturer, and also take into account the peculiarities and operating conditions.
Note that if the driver constantly uses the same type of oil, the filter is not contaminated, no significant changes in weather conditions have occurred, and there are no obvious ICE malfunctions, then the fact of filling with a fake one may occur. engine oil into the engine. It turns out that a poor-quality lubricant simply does not have the declared properties, as a result of which leaks appear.
The way out in such a situation is obvious - an immediate replacement of the filter and lubricant is necessary, and an additional one may also be necessary. Finally, we add that the blockage of the pipes of the crankcase ventilation system leads to the fact that gases accumulate inside the internal combustion engine, pressure grows inside the engine and the oil is squeezed out through the gaskets and seals. The specified crankcase ventilation system must be checked during the diagnostic process, and also periodically cleaned for preventive purposes.
How to fix a leak from an oil filter
So, in most cases, it is enough to fill in high-quality oil, taking into account the manufacturer's recommendations and seasonality, change or correctly install the oil filter.
If you have basic skills, it is quite possible to cope with cleaning the crankcase ventilation system. This means that practically every driver in a garage can eliminate oil leaks with his own hands in most cases.
As for more complex malfunctions, these include a failed pressure reducing valve and damaged threads on the fitting for securing the oil filter. In practice, the problem with the valve is more common, so let's focus on checking it separately.
The main task is to check the valve spring, which is located under the plug. It is she who is responsible for the operation of the device; the general performance will depend on the state of the spring. The specified spring must be removed from the seat for inspection. The presence of scoring, creases, bends and other defects is not allowed. Also, the spring should be tight, not weakened.
If the spring can be easily stretched by hand, this indicates a weakening of this element. Also, the overall length of the spring should not be increased, indicating an extension. Decrease in length is an indication that part of the spring has broken off. In a similar situation, debris must also be removed from the valve seat. The discovery of any defects in the spring is the reason for its replacement.
Let's summarize
A decrease in compression in the cylinders will indicate a possible breakthrough of gases from the combustion chamber and an increase in pressure in the engine crankcase. The reading on the liquid pressure gauge will help you more quickly identify pressure deviations in the lubrication system, if any.
Finally, we add that if the oil squeezes out from under the oil filter during starts or the lubricant is constantly flowing, while the engine is in good order and the pressure in the lubrication system is normal, and the filter itself is correctly installed and securely fixed, then the reason may be the low quality of the filter itself. In this case, before the in-depth check ICE is better first, change the filter to a proven product from a well-known manufacturer.
Read also
Why does oil flow from the engine breather: signs and main causes of such a malfunction. How to understand why oil is driving through the breather, troubleshooting.
