Technical characteristics and features of the UAZ-3303 car

Vehicle equipment

Engine UMZ-417

In the final variation, the power unit of the UAZ 3303 acquired better performance characteristics. The UMZ-417 engine was equipped with a new cylinder head. It had a better design and had a cast iron camshaft.

The fuel system was equipped with a two-chamber carburetor. It featured quite innovative solutions at that time. The UAZ 3303 carburetor was equipped with an electronic K-151V sensor and an intake manifold. This solution made it possible to increase the power and performance of the car by 10 hp. With.

Thanks to the implemented solutions, other characteristics of the model have also significantly improved. Load capacity increased by 400 kg. This significantly expanded the range of applications of this vehicle. It began to be used to transport baked goods, fuel, liquids in tanks or even people.

Fuel system UAZ 3303

UAZ 3303 is equipped with spring suspensions. If necessary, the car can be equipped with additional equipment - a fuel tank, a starting heater. This ensures reliable operation of the power unit in any weather, which is especially important in the presence of severe winters.

There is no power steering in this model. This is due to the fact that when creating the vehicle, emphasis was placed on its reliability.

Related video: UAZ 3303 - review after a year of operation

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ECM weight

For SAMAR with a 1.5 liter engine, the mass for the ECM is taken from the engine housing, from the fastening of the plugs . The plugs are located on the right side of the block head.

For SAMAR with a 1.6 liter engine, but also 1.5 liter engines, which have a new generation ECM (Bosch 7.9.7, January 7.2), the weight of the ECM is taken from a welded stud. The pin is attached to the metal frame of the instrument panel to the floor tunnel (under the ashtray). In practice, it happens that this pin is painted at the factory and is loosely tightened. Therefore, over time it may become loose and at the moment the fan is turned on, there will be a drop in the voltage of the following sensors (which will lead to jumps in speed): DTOZH, TPS, MAF.

Features of electrical equipment

For designers, a more difficult process in those years was to find high-quality components to equip the ignition and lighting systems.

This can be clearly seen from the filling of the cabin:

• vehicle system controls;
• control devices.

Due to a shortage of controls, the UAZ received rather “variegated” elements

External lighting

Everything that could be obtained was used to ensure uninterrupted supplies to the factory conveyor.

• from the predecessor of the Bukhanka, the GAZ-69, the factory workers borrowed a foot-operated light switch;
• From GAZ-24 headlights, etc.

The design of the GAZ-69 switch was successfully used on the 452

Ignition system

Since the Volgov engine was installed on Loaves and Bukhanki, the UAZ 452 wiring for the ignition system was almost completely copied from it.

The simplicity of the design made it easy to maintain the car away from garage conditions

Weight of UAZ-452

The curb weight of most modifications of the UAZ-452 minibus varies from 1720 (kg) to 1825 (kg).

General information:

The Ulyanovsk Automobile Plant (Russia) has been mass-producing the UAZ-452 off-road cargo and passenger vehicle since 1965. The model is equipped with a ZMZ-402 or ZMZ-40911 engine.

Model weight:

Curb weight of typical modifications:

• UAZ-452 2.4 MT 452 van, 2 seats (1965 - present): 1720 (kg).
• UAZ-452 2.7 MT 39625 cargo-passenger, 9 seats (1965 - present): 1805 (kg).
• UAZ-452 2.8 MT 39099 “Farmer”, 7 seats (1965 - present): 1820 (kg).
• UAZ-452 2.4 MT 452G sanitary, 6 seats (1965 - present): 1825 (kg).

Note:

The permissible gross vehicle weight (GVW) of the UAZ-452 is the weight of a curbed and fully loaded vehicle with a driver and passengers, determined as follows:

• LDM = SM + MB + MP, where SM is the curb weight of the car; MB - permissible weight of luggage; MP - mass of passengers.

Important: the curb weight of the UAZ-452 vehicle (CM) is determined by the following formula: CM = MK + MRM + MV, where MK is the mass of the vehicle structure itself; MRM - mass of consumables (fuel, oil, etc.) in the required quantities; MV - driver's weight (conventional value - 75 (kg).

Other names:

The all-wheel drive cargo-passenger van and minibus UAZ-452 Bukhanka is also known on the Russian market under the names UAZ-2206, UAZ-3741, UAZ-3909, UAZ-39094, UAZ-3962, UAZ-3303.

Years currently in production.

How to remove the body from the UAZ 469 frame

Many car owners operating UAZ 469 cars are interested in the question of how to remove the body from the UAZ 469 frame. This is not difficult to do. For the entire complex of work, a minimum of 3 people should be involved. The UAZ must be driven into a box where there is a crane beam. Carry out preparatory operations:

• the hood, battery, headlights and other elements that interfere with operation are removed;
• the power plant and gearbox are also dismantled;
• the wings at the front are also removed;
• after this it is necessary to dismantle the front side members and mudguards.

Before lifting under the wheels, you should install wheel chocks and disconnect the cable ends from the battery. Remove the steering mechanism and box cover hatches. Disconnect the radiator from the frame. If the engine has a K 150 carburetor, it is necessary to disconnect the rod passing through the entire body.

Just before lifting, unscrew the 12 bolts securing the body to the frame on the UAZ 469. The body can be lifted using a crane or a jack using wooden spacers.

Using several techniques, raise the body to the required height. Lifting should be carried out alternately from the front to the rear in 2-3 steps so that the body does not move relative to the frame. Set spacers. Secure the crane beam slings with 4 hooks to the doorways.

To avoid deforming the metal, use plastic or metal boxes as protective gaskets. Remove the body from the frame and install it next to it in free space, first placing wooden blocks.

Parking brake system of UAZ vehicles

Parking mechanism diagram

Rice. 2 Parking brake system: a – view with brake drum; b – view without brake drum; 1 – adjustment fork; 2 – lock nut; 3 – drive rod; 4 – expansion cracker; 5 – plug; 6 – drive lever; 7 – adjustment screw; 8 – block support; 9 – pusher of the expansion unit; 10 – ball body; 11 – housing of the expansion unit; 12 – brake drum; 13 – first block; 14 – tension spring of pads; 15 – cap; 16 – expansion unit ball; 17 – bolt; 18 – second block; 19 – brake shield; 20 – housing of the adjustment mechanism; 21 – rod; 22 – spring; 23 – spring cup.

Specifications

Technical characteristics of the UAZ 3303 are presented in the following table:

Verified wiring diagram for UAZ 452: Loaf Loaf friend, comrade and Tablet

The UAZ-452 has received a variety of affectionate nicknames over the years of operation: “Loaf” and “Loaf” - for its external resemblance to a bread brick, “Tablet” - for reliable service in medical organizations. It is noteworthy that its design and individual systems - transmission, body or wiring diagram of the UAZ 452 turned out to be quite durable. Perhaps this was the only car in those years capable of reaching the most remote places for humanitarian purposes. The famous Bukhanka has become a multi-purpose vehicle for rural areas

Battery weight

The “minus” on the battery has two branches: a thick wire and a thin one. A thick wire runs from the battery negative to the engine housing. If this contact is not secured properly, then the battery is not fully charged, the starter does not develop full power, and the ECM stalls (since it takes weight from the engine).

On the negative mount of the battery with the engine, you need to check the tightness of the two nuts between which the contact to the engine is attached: first of all, loosen the outer nut and tighten the inner one, and then tighten the outer one.

The second wire from the battery is much thinner and is attached to the body next to the battery itself. This wire is the source for all energy consumers in the car. Here you also need to check the tightening torque of the nut both to the body and to the battery terminal.

Where is the turn signal relay located?

In UAZ vehicles, the turn signal circuit includes a steering switch, a turn relay, an hazard warning light and six bulbs.

This system is protected from overloads by several fuses:

• F8 – 10 A (for alarm);
• F20 – 7.5 A (for direction indicators).

Turn signals without a relay will not blink , so its malfunction is easy to determine.

It is located in the mounting block, on the left side, at the driver’s feet. In ambulances and utility vehicles such as UAZ, the turn relay is installed on the partition, behind the driver's seat.

If the relay malfunctions, it must be removed, and the use of metal objects is not allowed.