The Raf 22 0 3 minibus, produced at the Riga Automobile Plant from 1976 to 2000, became one of the most popular vehicles in the USSR, performing the functions of a minibus, medical vehicle and official transport. The design of this car was based on proven GAZ-24 Volga units, which ensured high maintainability and ease of maintenance in any road conditions. Despite the outdated design and basic equipment by modern standards, the model RAF-2203 has earned a reputation as a workhorse thanks to its endurance and spaciousness, allowing it to carry up to 11 passengers.
When purchasing Raf 22 0 3 on the secondary market, first check the condition of the frame and lower body members, since these areas are most susceptible to corrosion due to salt and moisture.
Considering the technical features, it is worth noting that the base model is considered to be the version 2203, which was equipped with a ZMZ-24D engine and had a cabin with a “1+10” seat layout. It was this car that became the basis for the creation of dozens of modifications, including specialized versions for ambulance, intensive care, and even cash collection. Understanding the structure of the classic Raf 22 0 3 necessary not only for collectors of retro equipment, but also for owners of surviving copies, since many components require a specific approach to repair.
Technical characteristics and dimensions
The overall dimensions of the Raf 22 0 3 provide it with excellent maneuverability in urban environments, while the internal volume of the body allows passengers and cargo to be comfortably accommodated. The length of the car is 4990 mm, width - 2030 mm, and height - 2030 mm, which makes it comparable to modern compact vans. Wheelbase 2,780 mm long has a positive effect on highway stability, although the turning radius remains large enough for narrow lanes.
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The table below shows the main technical parameters of the base model, which determine its performance. Pay attention to the curb weight, which, combined with the load capacity, gives an idea of the load on the chassis.
| Parameter | Meaning | Unit of measurement |
|---|---|---|
| Engine | ZMZ-24D / ZMZ-2401 | Petrol, 4-cylinder |
| Working volume | 2.445 | liters |
| Power | 95-98 | hp |
| Maximum speed | 130 | km/h |
| Fuel consumption (combined) | 14-16 | l/100 km |
Engine and power system
The heart of the Raf 22 0 3 car is the ZMZ-24D carburetor engine, which was originally developed for the Volga GAZ-24. This 4-cylinder unit with a lower valve arrangement (in early versions) or an upper valve arrangement (ZMZ-2401) is distinguished by its simplicity of design and availability of spare parts. Lubrication system combined, with splashing and oil supply under pressure, which requires regular monitoring of the oil level and quality.
The power system operates on the basis of a K-126G carburetor, which ensures the preparation of a combustible mixture. It's important to note that carburetor K-126G is considered one of the most reliable in its class, but requires periodic adjustment of the idle speed and fuel level in the float chamber. Owners often have to deal with the need to replace diaphragms and jets, but the design of the unit allows this work to be performed even in the field.
Features of engine tuning
To increase power on the Raf 22 0 3, they often install a cylinder head from a ZMZ-2401 or completely change the engine to a more modern ZMZ-406, which requires altering the exhaust system and gearbox mounting.
Transmission and chassis
The Raf 22 0 3 transmission includes a dry single-plate clutch, a 4-speed manual gearbox and a cardan drive. Gearbox synchronized in all forward gears, which makes shifting easier, although it requires fully depressing the clutch pedal. The design of the transmission is inherited from the GAZ-24, so problems with wear of synchronizers or input shaft bearings are solved using similar methods.
The main feature of the Raf 22 0 3 chassis is the dependent suspension on both axles with longitudinal springs, which provides high load capacity, but reduces comfort when driving over uneven surfaces.
The rear suspension of the car is dependent, on longitudinal semi-elliptical springs with hydraulic shock absorbers. This scheme is excellent for transporting goods and passengers, but requires regular lubrication of the springs and checking the condition of the stepladders. The front suspension is also dependent, pivot, which makes the car sensitive to the condition of the pivots and bushings. Play in these components is a common cause of the car pulling to the side and uneven tire wear.
Body and interior equipment
The body of the Raf 22 0 3 minibus is made according to a carriage design with a supporting structure, which was an advanced solution for its time. The body frame is welded from bent profiles, and the outer panels are attached to it. During operation, special attention should be paid to the condition of the floor and thresholds, since this is where corrosion most often occurs. Car interior designed to accommodate a driver and 10 passengers, the seats are arranged face-to-face or in the classic version.
Interior comfort
As standard, the seats were hard, but luxury versions of 22031 featured soft seats with armrests, as well as improved headliner.
The internal equipment includes a heating system that takes heat from the engine. The Raf 22 0 3 stove is known for its efficiency, but often suffers from radiator leaks or clogged pipes. Ventilation is provided through vents and a sunroof, which in the summer may not be enough for a comfortable stay in the cabin.
⚠️ Attention: When operating a car in the winter season, be sure to check the tightness of the door and glass seals, as condensation inside the cabin can lead to rapid rotting of the metal frame elements.
Main modifications of the model
Over the years of production, many modifications were released, each of which had its own characteristics. The most famous is RAF-22031 — a minibus for transporting disabled people, equipped with a lift and a special mount for wheelchairs. The model has also been widely used 22032 (“taxi”), which had a distinctive coloring and a taximeter.
When searching for spare parts for specific modifications (for example, 22033 or 22039), check the compatibility of the parts with the base model 2203, since many components are unified.
There were also rarer versions, such as 22038 (export version with improved finishing) and 22034 (hearse). It is worth mentioning separately the resuscitation vehicles, which were equipped with additional electrical equipment and a ventilation system. Each modification had its own characteristics in the interior layout and technical equipment, which must be taken into account during restoration.
Typical faults and methods for their elimination
Owners of Raf 22 0 3 often experience engine overheating, especially in the summer or when driving with a full load. The main reason is the insufficient efficiency of the standard radiator and pump. The solution to the problem is to install a more efficient radiator or electric fan. Also (a common problem) is wear on the ignition distributor and coil, which leads to unstable engine idling.
☑️ Scheduled maintenance
The brake system, designed according to a hydraulic drive and a vacuum booster, requires regular bleeding and replacement of the brake pads. Drum wear is another nuance that is worth paying attention to, since boring old drums does not always provide a long-lasting effect.
⚠️ Attention: If you notice a decrease in the brake fluid level without visible leaks, immediately check the condition of the seals in the master and wheel brake cylinders, as fluid may leak into the vacuum booster.
FAQ: Frequently asked questions
What is the actual carrying capacity of Raf 22 0 3?
The rated load capacity is about 800-900 kg (including the weight of passengers), however, the reinforced spring suspension allows for short-term transportation of up to 1 ton without critical damage to the frame.
Is it possible to install a Gazelle engine on Raf 22 0 3?
Theoretically, it is possible, since ZMZ engines have similar seats, but it will require replacing the gearbox, altering the exhaust system and modifying the cooling system. This is a complex technical project.
Where can I find spare parts for Raf 22 0 3 today?
Many parts are unified with GAZ-24 and GAZ-31029, so they can be found at disassembly sites or ordered from manufacturers of retro spare parts. Body elements are manufactured to order in specialized workshops.
Why is Raf 22 0 3 called “Rafik”?
This is a popular abbreviation for the name of the manufacturing plant - Riga Automobile Van (or simply the abbreviation RAF), which took root in Soviet times and is still used today.