Great Wall GW4G15B engine
Content
- Historical information
- Principal parameters and main technical characteristics
- List of major engine faults and how to fix them
- Change of oil
- Possibilities of tuning the power unit
- The main versions of vehicles that are equipped with GW4G15B
- Key features associated with the purchase of the GW4G15B contract engine and its estimated cost
The Great Wall GW4G15B engine is the brainchild of the Chinese automotive industry, a power unit that has proven itself from the best side.
Great endurance, high performance, increased power - this is only the smallest list of advantages that the owner who equipped his vehicle with this motor will appreciate.
Historical information
The patent holder for the design, manufacture and technical modifications to the GW4G15B is the Chinese concern Great Wall Motor. Despite the fact that this company was founded in the early 90s of the last century, it has gained great popularity and is rightfully one of the leaders specializing in the manufacture of power units.
The GW4G15B engine was presented to the general public back in 2012 at the industrial conference Auto Parts Expo, which was held in Beijing.
When designing the Great Wall GW4G15B, Chinese designers used advanced techniques and innovative technologies, so that the new product boasts high efficiency, exceptional capacity and a long average life.
Even before this engine model entered mass production, it bore the unofficial name of a new generation small-capacity engine.
Advanced engineers pursued the goal of creating not only an efficient device with great power, but also an environmentally friendly, economical gasoline power unit.
The process of designing and manufacturing a prototype of a 1,5-liter engine took the specialists only a few months. It was specially designed to equip new versions of cars.
Its design features and technical characteristics are really at the highest level: an almost silent timing drive, a lightweight cylinder block, and relatively low fuel consumption.
According to the manufacturer, the old GW4G15 was taken as the basis for the design of the GW4G15B, which was significantly inferior in terms of technical characteristics (there was no turbocharging, there was little power, etc.).
In essence, 4G15 is similar only in name, in the constructive part, these two products are fundamentally different, both in terms of the mechanical part and in terms of the functioning system.
Haval H2 is a 2013 crossover that was first equipped with a GW4G15B powertrain. A little later, this engine was borrowed by the Haval H6.
It would be wrong to say that the GW4G15B has no analogues. So, for example, at the 6th international exhibition dedicated to the Chinese automotive industry, the manufacturer presented two modifications of this design: GW4B13-turbo unit with a volume of 1,3 liters and a power of 150 hp; 1-liter GW4B10T engine with 111 hp. and distinguished by unsurpassed environmental properties.
Principal parameters and main technical characteristics
From a technical point of view, the GW4G15B is a VVT four-stroke unit with an electric starter, a pair of DOHC overhead camshafts, a liquid cooling system and forced splash lubrication. A distinctive feature of the product is the presence of an integrated function responsible for multi-point electronic fuel injection.
To get acquainted with the key technical characteristics of the power unit, study the information given in the table:
| Technical parameter, unit of measure | Value (parameter characteristic) |
|---|---|
| Rated weight of the engine in a disassembled state (without structural elements inside), kg | 103 |
| Overall dimensions (L/W/H), cm | 53,5/53,5/65,6 |
| type of drive | Front (full) |
| Gearbox | 6 speed manual |
| Engine volume, cc | 1497 |
| Number of valves/cylinders | 2020-04-16 00: 00: 00 |
| Execution of the power unit | Ryad |
| Limit torque, Nm/r/min | 210/2200-4500 |
| Maximum power, rpm / kW / hp | 5600/110/150 |
| Fuel consumption per 100 km, l | 7.9 to 9.2 (depending on driving style) |
| Fuel category | Gasoline 93 according to the GB 17930 standard |
| Compressor | Turbocharger |
| Ignition type | Electrical starting system |
| Cooling system | Liquid |
| Number of crankshaft bearings, pcs | 5 |
| Pressure value in the fuel system, kPa | 380 (error 20) |
| The value of oil pressure in the main main hose, kPa | 80 or more at 800 rpm; 300 or more at 3000 rpm |
| The amount of oil used (with / without filter replacement), l | 4,2/3,9 |
| Maximum temperature at which the thermostat should work, ° С | From 80 83 up |
| Cylinder sequence | 1 * 3 * 4 * 2 |
List of major engine faults and how to fix them
Despite the fact that the GW4G15B has established itself as an exceptionally reliable and wear-resistant product, the cylinder block can be called the weak point of the power unit. Compared to its counterparts made of cast iron, it is not very durable.
The engine can be safely attributed to maintainable units, and the process of restoring its performance cannot be called laborious. To eliminate the malfunction, it is quite possible to do with improvised means without buying new components and assemblies.
So, for example, domestic repairmen praise the engine for the possibility of boring the cylinder block, as well as using the pressing process to restore the connecting rod mechanism.
To determine the cause of a motor breakdown, it is recommended to use an electronic diagnostic system, which with a 90% probability will accurately determine the malfunction.
Problems associated with the GW4G15B are indicated by the MI warning lamp, which will flash continuously after starting the engine.
This indicates the following categories of faults:
- incorrect positioning of the camshaft and crankshaft relative to each other;
- malfunctions of fuel injectors and / or a malfunction in the throttle valve;
- increased voltage occurred in the sensor circuit, which led to an open and / or short circuit;
- problems associated with the functioning of the cylinder block.
Change of oil
Like any other power unit that functions by burning fuel, the GW4G15B needs high-quality lubricants. Good oil is one of the key components that affect the duration of continuous operation of the engine.
Most experts recommend giving preference to Mobil1 FS OW-40 or FS X1 SAE 5W40. From the list of high-quality compounds, you can also list products of the Avanza and Lukoil brands.
The lubrication system allows you to hold 4,2 liters of oil, in case of replacement, the consumption is from 3,9 to 4 liters.
Replacement should be done at least every 10000 km. run.
Possibilities of tuning the power unit
The efficiency and performance of an engine can be greatly improved by adjusting fundamental parameters.
One of these methods is chipovka (flashing the control unit using innovative technologies). It takes a relatively short time interval and will cost from 10 to 15 thousand rubles. An increase in torque up to 35%, a decrease in fuel consumption, an increase in engine power (25-30%) - this is only the smallest list of bonuses that a power unit that has undergone a chip tuning procedure will receive.
It is recommended to trust such an event to qualified specialists, since in the event of critical errors, problems associated with car acceleration may appear.
Other tuning options for the GW4G15B include:
- Roughening the internal ducts of the cylinder head (BC). As a result, the dynamics of the passage of the air flow will change, which will lead to a decrease in turbulence and an increase in the return from the engine.
- Boring BC. This will significantly increase the volume of the engine, and hence its power. To organize such an event, you will need special tools and equipment, since boring is done from the inside and maximum observance of the correct geometry is required.
- Mechanical tuning based on the stroker kit. This requires a ready-made set of structural elements (rings, bearings, connecting rod, crankshaft, etc.), which is manufactured under production conditions by specialized companies. Due to such tuning, the volume of the power unit increases, and, as a result, the torque. However, this modification has a significant drawback: since the piston stroke increases significantly, they wear out faster.
The main versions of vehicles that are equipped with GW4G15B
This modification of the power unit is suitable for installation under the hoods of two car brands:
- Hover, including brands:
- H6;
- CC7150FM20;
- CC7150FM22;
- CC7150FM02;
- CC7150FM01;
- CC7150FM21;
- CC6460RM2F;
- CC6460RM21.
- Haval, including performances:
- H2 and H6;
- CC7150FM05;
- CC7150FM04;
- CC6460RM0F.
Key features associated with the purchase of the GW4G15B contract engine and its estimated cost
We have to state a disappointing fact: many unscrupulous sellers under the guise of an original product offer low-quality analogues and cheap replicas.
A certified unit from the first manufacturer can be ordered directly from China through the representative office of the official Great Wall Motor dealer in Moscow or use the services of specialized online stores selling automotive parts. Delivery time depends on the specific store and will be from 15 to 30 business days. Before buying, it is strongly recommended to read the accompanying documentation (operating, installation and maintenance manuals) and ask the seller to present certificates of conformity and goods-waybills.
The cost of purchasing a GW4G15B contract engine will depend on your region, the total volume of the production batch, as well as the special conditions and financial interest of a particular supplier.
The average price of a new, original product ranges from 135 to 150 thousand rubles.
