Isuzu Forward is a series of maneuverable trucks produced in Japan in various versions (from classic chassis to tow truck). The debut versions of the family appeared in 1970. Since then, the car has undergone 6 global upgrades, incorporating advanced solutions and the best experience of the Japanese automobile company. Each new generation differed from the previous one not only in design, but also in design, becoming more stylish. Currently, the series is among the leaders in the medium-duty category. The sixth generation of the model is offered to consumers.
Isuzu Forward is a universal cargo vehicle that is used for various commercial purposes. The main area of a car is the transportation of light and medium weight cargo over short distances.
Main characteristics
ISUZU 4HK1 version has a volume of 5,193 cm3. There are four cylinders in total. Also, the operation of the engine is ensured by the presence of one camshaft. Additional characteristics:
- piston stroke – 125 mm;
- cylinder – 115 mm;
- compression – 17.5.
With the help of a powerful turbine, air is inflated and fuel is injected by the CDR.
In addition, the device has improved traction: 175 hp. and a torque of 500 Nm, due to which it is able to ensure full and uninterrupted operation of a mid-taiga truck.
In our online store you can purchase spare parts for the 4HK1 engine. Spare parts for 4HK1 diesel engines for trucks and cars are always in stock. Delivery to regions of Russia and the CIS by transport companies.
Go to the spare parts section
When producing this model, the Isuzu engine developers decided to introduce a number of solutions, which made it possible to provide a torque of 153 Nm and a power of 120 hp. These benefits are obtained thanks to:
- in-line engine system and timing gear drive;
- upper placement of the camshaft, which corrects the operation of four intake and four exhaust valves using rocker arms.
There are two engine production points - Japan and Ulyanovsk. While car owners are trying to find a motor with high power, in this case it is important to achieve maximum payback, increase the resource and budget for use.
The design in the diesel version was significantly modernized, which led to a service life of 1 million km. During the manufacturing process, the developers took into account all the nuances, including prices for the gear drive:
- in case of wear of timing gears, oil pumps and cylinder capacity, a complete replacement of these parts will not be required;
- customers can choose different bushings - they can be pressed and bored on machines without difficulty;
These features allow you to maintain the operating parameters of the internal combustion engine and reduce maintenance costs.
Device
All versions of Isuzu Forward have a rear-wheel drive layout and a 4 by 2 wheel arrangement. Over the years of changes and transformations, the model has become truly reliable and today is the embodiment of quality. The car is built on a classic frame with side members. The chassis is also made as simple as possible - dependent leaf spring suspension is used in the front and rear. Both axles use standard tires with dimensions 154/148M. The model's suspension is soft, which makes operating the car very comfortable.
Isuzu Forward engines are combined with a modern 6-speed MZW6P mechanical transmission, the main advantage of which is high reliability.
Isuzu Forward is equipped with a dual-circuit pneumatic braking system with ABS. The braking process is controlled using a special electronic control. Its use in conjunction with ABS significantly reduces the risk of an accident when braking. The car is equipped with drum brakes at the front and rear with long service intervals between pad replacements. Additionally, the following safety systems are installed: ESC, ABS and ASR.
The model is equipped with a folding cab with a large glass area, large optics and wide door openings. When creating it, practicality was the main priority. The cabin has 3 seats (the middle seat can be transformed into a table if necessary) and a sleeping compartment with a width of 650 mm. Inside the cabin, everything is done to create maximum driving comfort: air conditioning, a wide range of seat and steering wheel adjustments, full power accessories and air seat suspension. The steering mechanism operates in conjunction with the hydraulic booster.
In the basic configuration, Isuzu Forward is equipped with:
- interior heater;
- halogen optics;
- air conditioning;
- fabric upholstery of seats;
- front and rear foglights;
- heated side mirrors;
- side lights installed on the roof;
- audio preparation;
- reverse buzzer;
- central locking;
- mountain brake;
- full electrical package;
- tachometer.
Constructions
Architecture has such features.
- The cylinder block is made of cast iron. Has sleeves suitable for repair. The design also includes alloy steel, frame housing, aluminum cover and other parts.
- The head is a cast iron element and has enlarged valves. The gasket and cover are made of aluminum.
- ShPG - the dimensions of the piston allow heat to be removed. The finger offset is designed to reduce noise and scrolling.
The mechanism uses an intake manifold. Its strength is ensured by a composite material with rubber that reduces noise.
The diesel engine is presented in a simple design, so a garage or field conditions will be enough for repairs.
Video about the 4HK1 engine
We suggest you familiarize yourself with the engine repair process and its structure in general in the video:
During the maintenance process, workers washed, disassembled, and troubleshooted the internal combustion engine. Next, the cylinder head was pressure tested and the seat was straightened, the guide bushings on the valves and the injector housing were replaced, the engine was assembled, painted and shipped to the owner.
ISUZU engines: features of diesel models for trucks
ISUZU is a well-known global manufacturer of diesel engines. Since 1936, it has been producing engines that end up under the hood of cars of the same name and other well-known brands. Today some models of Honda, Toyota, Mazda are driven by Isuzu diesel engines, special equipment from Hitachi, New Holland, Airman operates, and ships sail.
Isuzu engines
Industrial
Isuzu diesel engines for the industrial segment are available in 5 lines. These are 12 models of motors of varying power.
- L series - compact engines with a volume of 2.2 liters. Their power is in the range of 39 - 43 kW. All models in this line are 4-cylinder vertical units with a water cooling system.
- Series J - ISUZU motors with a similar vertical design, but with greater capabilities. The power of these engines is 35 - 46 kW, the turbocharged models of this series are 61 - 95 kW.
- Series B - industrial diesel engines with a water cooling system. These are already 4- and 6-cylinder models with a power of 92 - 132 kW.
- Series N - 2 types of motors with a power of 147 - 210 kW.
- The U&W series are the most serious models with six cylinders and a power range of 270 - 397 kW. The volume of these industrial giants reaches 15.7 liters.
Pros of the 4HK1 engine
Due to the simplicity of the design, the internal combustion engine is able to provide a good level of dynamics regardless of speed. This is a million-dollar motor, which shows real use experience. Oil and fuel are in moderate quantities, do not require frequent repairs and can be updated by the owner himself, without the intervention of specialists.
Thermal clearances on the valves are regulated by hydraulic pushers, which allows you to contact the service center only when necessary. The reliability of gear transmission is not inferior to belts and chains, guaranteeing the maximum level of safety.
Flaws
The car is the Isuzu Forward series, but it has some disadvantages:
- The chassis has extremely small overall dimensions and weight among its competitors;
- Lack of original spare parts on the domestic market;
- Interior equipment in terms of comfort has been improved compared to previous models, but still requires improvement.
More on the topic: Hyundai 78 HD – a truck with various modifications
The characteristics of this machine are quite acceptable for average domestic businessmen, but it is necessary to take into account the year of manufacture of the machine and the recommendations for operation specified in the attached manual.
The photo shows a wiring diagram of an Isuzu Forward car.
It is worth noting that the electrical circuit of the truck is standard for all modifications. The complete structure of the truck can be studied in the operation and repair manual.
Owner reviews
In general, the Isuzu 4HK1 engine managed to prove itself well. Owners praise it for its low fuel consumption, slow wear and absence of breakdowns. If you purchase an original product and not a cheap fake, it will last at least 5 years.
On what resources can I buy a complete engine?
If for any reason you need to purchase a 4hk1 engine, we suggest you consider the following sites:
- https://groupintelcar.ru/product/dvigatel-isuzu-4hk1;
- https://baza.drom.ru/sell_spare_parts/+/%E4%E2%E8%E3%E0%F2%E5%EB%FC+%E2+%F1%E1%EE%F0%E5/model/isuzu+forward /engine/4hk1/;
- https://baza.drom.ru/sell_spare_parts/+/%E4%E2%E8%E3%E0%F2%E5%EB%FC+%E2+%F1%E1%EE%F0%E5/model/isuzu+forward /engine/4hk1/.
Before paying for your order, do not forget to make sure that the seller is honest, so as not to encounter a scammer.
Modifications
The series is produced in several dozen variations. The most popular versions among Russian consumers are the Isuzu Forward 12.0 and Isuzu Forward 18.0 versions - basic chassis on which various add-ons are installed. These variations are common in the format of an onboard vehicle, chassis and van. However, they are also used as a basis for creating special versions:
- tow trucks;
- lifts;
- isothermal vans;
- manipulators;
- dump trucks;
- concrete mixer trucks;
- aerial platforms;
- self-loaders;
- garbage trucks.
The main difference between Isuzu Forward 12.0 and Isuzu Forward 18.0 is the dimensions and weight characteristics (the index indicates the total weight of the model). Each version has several versions with different parameters.
Engine cost
Purchasing ISUZU 4HK1 engine will require serious investment. The cost of the new model starts from 418,000 thousand rubles, and can reach 500,000 thousand rubles. depending on the manufacturer and originality of the parts.
In our online store you can purchase spare parts for the 4HK1 engine. Spare parts for 4HK1 diesel engines for trucks and cars are always in stock. Delivery to regions of Russia and the CIS by transport companies.
Go to the spare parts section
Price new and used
Isuzu Forward is not often found on Russian roads. The main reason for this is the fairly high cost. Isuzu Forward 12.0 is offered at a price of 4.3 million rubles for the short wheelbase version, from 4.4 million rubles for the medium wheelbase version, and from 4.47 million rubles for the long wheelbase model. Price tags for Isuzu Forward 18.0 start at 4.7 million rubles.
A good option would be to buy a used Isuzu Forward. High quality will allow you to use the model for a long time, and the lower cost of a used car will save you money on your purchase. Cost of Isuzu Forward on the secondary market:
- 2004-2005 model year - 0.8-1.2 million rubles;
- 2011-2012 production year - 2.7-3 million rubles.
