Subtleties when starting the UAZ 469 engine
Starting a cold engine at positive temperature
Starting the engine at a positive temperature has its own characteristics. First you need to set the gear lever to neutral, pull out the entire carburetor choke control knob about halfway and immediately after that, turn off the clutch and turn on the ignition. In this case, the starter must be kept on until the engine itself is started. But don't hold it like that for more than five seconds. The intervals between switching on the starter must be at least 10 seconds.
After the engine has started, you must immediately release the ignition switch key. After that, push the choke control knob down to the position that will provide the lowest engine speed. Now warm up the engine and gradually lower the control knob of this air damper until it stops. It is worth noting that the temperature of the coolant of the engine you have already warmed up should be at least 60 degrees.
Let us immediately pay attention to a very important subtlety with such heating. In no case should you drive a car at a high engine speed when operating the UAZ 469 for accelerated warming up
Starting a cold engine at temperatures up to minus 15 degrees
In this case, first you will need to turn off the oil cooler. After that, close the blinds of this radiator and install a special insulating cover for the radiator lining.
Next, you will need to turn the crankshaft of the engine with the handle. Turn it about four turns. After you need to pull the carburetor choke control knob to the maximum. Next, you need to perform the same steps as when starting the engine at a positive temperature.
Starting a cold engine at temperatures below minus 15 degrees
Let us immediately draw your attention to the fact that you need to start a cold engine only after it has been preheated with a preheater. But if suddenly at the time of launch you do not have a pre-heater, then you can simply pour hot water through the cooling system
If you are preheating with hot water, then it must be poured into the radiator. Remember to drain the water as it cools from the cooling system. This can be done through a special drain valve. Just remember that after the system needs to be filled with hot water again. Thus, warm up the entire system until the engine crankshaft begins to rotate. Rotation should be light enough with good compression in the cylinders.
It is also recommended to warm up the inlet pipeline with hot water, while water must be poured onto it carefully, in a thin stream, so that the heat can be transferred to the pipeline. After that, you need to turn the fan by hand in order to eliminate possible freezing of the pump impeller in the cooling system. Further, everything must be done according to the same principle as described in the previous section about starting the engine at temperatures up to minus 15 degrees.
Starting a hot UAZ 469 engine
Here, too, there are a couple of subtleties that you should always remember. When starting a hot engine, do not cover the carburetor choke. It is also not advisable to press the throttle pedal sharply, as this can lead to an over-rich fuel mixture and will not give you the opportunity to start the engine.
But if, nevertheless, the combustible mixture turned out to be over-enriched, then you need to blow all the cylinders with air. To do this, gently press the throttle pedal of the carburetor to the maximum. After very quickly turn the starter crankshaft in the engine a couple of turns.
Platform for conveyor models
The famous "Loaf", thanks to its all-metal body, the "452" model served as a platform for creating a whole line of vehicles:
- UAZ 2206 - a minibus designed for 11 people;
- UAZ 3962 - a car for the ambulance service;
- UAZ 396255 - civil modification of an ambulance for the needs of rural areas;
- UAZ 39099 - promoted under the name "Farmer". Designed for 6 passengers and 450 kg of cargo;
- UAZ 3741 - a van for transporting 2 passengers and 850 kg of cargo;
- UAZ 3303 - a flatbed car with an open body;
- UAZ 3904 is a cargo-passenger version that combines the convenience of an all-metal body for passengers and an open body for cargo.
Features of the modification with multifunctional control
Variations with the car body did not affect its technical equipment too much. But when the changes affected the governing bodies, they underwent modernization:
- Interior wiring for UAZ;
- Steering column for turning and outdoor lighting;
- The control unit for the operation of electric wipers on the instrument panel.
Reason for modernization
On cars of the UAZ family, the windshield wiper control unit was located on the instrument panel. And since this did not meet the safety requirements, then on all subsequent modifications:
- it was replaced with a more modern multifunctional unit located directly on the steering wheel;
- began to install a new instrument panel.
Self-modernization
Cars of new releases already have a multifunctional control unit in the database. But the owners of early releases can convert the car to modern safety requirements with their own hands.
This will require:
-
original wiring
UAZ 2206 - as the most suitable for self-rework; -
Factory scheme-instruction
, allowing you to correctly connect the steering column switches to the standard circuit; - Desire for quality installation
.
The work algorithm will be as follows:
- Disconnect the battery;
- We remove the control unit from the instrument panel;
- We disconnect the wires, referring to their compliance with the factory diagram in fig. one;
- Remove the stock switches from the steering wheel column.
For alteration, you will need to purchase several new parts:
- A block of multifunctional paddle switches from the UAZ 390995 model;
- Relay for the wiper circuit (best suited from the VAZ model, as well as wiring 2112 connecting the relay and the switch block);
- Contact pads in the amount of 3 pieces (one 8-pin for the side of the steering column switches and two 6-pin for the relay and the standard adapter).
Let's start the installation:
- We replace the standard connector with a new one;
- We cut the wire 4x4 (indicated in Fig. 2 with a red cross);
Motorists-improved modernization scheme
Motorists improved the rework scheme proposed by the manufacturer by making some changes to it (in Fig. 3):
- A variable resistor R = 10K was introduced into the circuit, due to which the pause in the intermittent operation of the wipers can be smoothly changed from 4 s to 15 s;
- Connect the resistor in such a way that the countdown of the operating mode starts from the moment the brush motor stops.
Conclusions: cars of the UAZ family are not only unitary multi-purpose SUVs, but also easy-to-maintain vehicles. Almost any car owner, armed with knowledge and color wiring diagrams, is able not only to restore a failed node, but also to carry out a useful modernization of the car and its individual elements.
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One of the most common problems of domestic cars is the breakdown of any electrical appliances, the wiring diagram will help you figure this out. The only solution to this problem will be to check the condition of the fuses. The topic of today's article will be the electrical circuit of the UAZ Loaf car on an injector-type engine.
So, this article provides answers to such fairly common questions:
- What is the wiring diagram on a UAZ car Loaf of an injector-type engine?
- How is the electrical circuit of a UAZ Loaf car arranged?
- Where are the fuses located on a UAZ Loaf car of an injector-type engine?
- Assembly block repair.
Meet UAZ 452
The car was a cargo-passenger version of a cross-country vehicle with a 4 × 4 wheel arrangement. He mastered the production of the Ulyanovsk Automobile Plant model back in 1965.
You can evaluate its capabilities by watching the following video:
UAZ 452 is capable of carrying cargo weighing up to 700 kg in the back. In addition, it can tow a trailer weighing 850 kg. The vehicle has become very popular not only in Russian off-road conditions, but has also been successfully used in large cities in various capacities (pictured in the article).
- As a traffic police car;
- As a fire engine;
- ambulance;
- grocery store;
- Public utility vehicle, etc.
Electronic components
Wiring UAZ 452 was a simple single-wire circuit.
Structurally, she had the following solutions:
- The role of the second wire was played by a metal body and units and assemblies attached to it;
- All electronic components and actuators had a "-" displayed on the case. The price of such a decision justified the imperfection of the scheme.
For reference: The instruction provided for a regular check of contacts. When oxidized, they should have been cleaned with sandpaper.
power unit
The engine compartment is located directly in the passenger compartment, as this is due to its design.
Access to components and assemblies is also carried out from the passenger compartment, by removing the cover, which:
- Provided protection for the driver and passengers from the penetration of exhaust gases;
- Protected from dust and dirt;
- It served as an additional heating element (passive - from heating).
The previously used engine from Pobeda was replaced with a more modern engine from the 21st Volga. This was facilitated by the launch of a production line at the Zavolzhsky Motor Plant in 1964.
Passive vehicle safety
The design of the "Baton" with a cabover layout also initially raised a number of questions regarding safety. However, a series of crash tests conducted back in 1971 at the Dmitrovsky training ground proved that in most emergency situations, the driver and passengers of the UAZ 452 have a chance to avoid injury.
A striking example of comprehensive testing "Pills"
What is included in the electrical circuit
What features does automotive electrics have on old cars manufactured by the Ulyanovsk Automobile Plant?
Electronic components
The UAZ 452 wiring diagram itself is quite simple - single-wire.
- The body of the vehicle is used as the mass.
- Any electrical equipment of the old-style circuit on the UAZ 409 or another model, as well as actuators, are equipped with a negative terminal that is connected to the car body. According to experts, in general, this scheme is imperfect.
According to the operating instructions for electrical equipment, the driver must from time to time diagnose the condition of the integrity of the contacts. We are also talking about their oxidation. If the driver notices the presence of oxidation on the terminals, he must process them using fine-grained sandpaper.
Engine compartment
In this case, the engine compartment is located directly in the passenger compartment in accordance with the design of the machine.
The very access to the electrical circuit and other mechanisms and assemblies is made precisely from the passenger compartment, as a result of dismantling the cover, which:
- Designed to protect the motorist and passenger from exhaust gases entering the passenger compartment.
- Allows you to protect the interior of the car from the penetration of dirt and dust.
- Performs the function of an additional heating device, in particular in a passive way, as a result of heating.
AUZ car engine compartment
Passive safety
The very design of the domestic Loaf with the absence of a hood at first raised many questions in terms of the safety of the driver and passengers. As a result of several dozen crash tests that were carried out back in the early 70s of the last century, it was found that the car is no less safe when compared with other domestic cars. As the results showed, in the event of an accident, both the driver and the passengers of the car have a good chance of avoiding injuries in an accident.
Specifications UAZ 469
Before proceeding to the intricacies of operating a car, it would be nice to know about its technical characteristics.
The SUV is equipped with a 4-cylinder UMZ-451MI carburetor engine with a volume of 2.5 liters. Such a UAZ 469 engine is aggregated with a 4-speed manual gearbox (with synchronizers in 3rd and 4th gears). Engine power reaches 75 horsepower at a torque of 2200 - 2500 rpm.
A-72 or A-76 gasoline can be used as fuel. The car has two fuel tanks of 39 liters each, and fuel consumption at a speed of 90 km / h is 16 liters per 100 km. The maximum speed at full weight is 100 km / h.
Since the engine is the heart of any car, then it would be more logical to consider the intricacies of starting such a unit under various weather conditions, especially if your UAZ 469 is new.
Gearbox removal process
Repair of a checkpoint on a UAZ 452 is quite possible to do it yourself. This requires:
- a set of wrenches, including the wrenches needed to tighten the nuts;
- screwdrivers;
- hammer;
- chisel;
- pliers.
Dismantling algorithm.
The car must be on level ground. It is necessary to drain the oil from the two boxes by unscrewing the drain plugs. Next, the front seats, hatch halves, clutch release fork, transverse frame, gear levers from the boxes are removed.
The speedometer shaft, suspension mounts in the undercarriage, brake levers are subject to removal. As a result, an exit to the clutch housing opens. A box is fixed on it with fastening nuts, which must be unscrewed, then the UAZ gearbox is carefully extended along with the transfer gearbox until the splined shaft exits the flywheel. The driver will need an assistant to remove the box.
As soon as the disassembly into individual component parts has taken place, the box must be washed in kerosene and dried. All component parts are checked for integrity. First of all, this concerns the crankcase, shafts. If the threads on the shafts are damaged, they must be replaced. It seems dangerous to operate the machine if the gears are chipped.
Thus, the timely repair of the UAZ "loaf" checkpoint helps to extend the life of the box.
Meet UAZ 452
The car was a cargo-passenger version of a cross-country vehicle with a 4 × 4 wheel arrangement.
He mastered the production of the Ulyanovsk Automobile Plant model back in 1965.
You can evaluate its capabilities by watching the following video:
UAZ 452 is capable of carrying cargo weighing up to 700 kg in the back. In addition, it can tow a trailer weighing 850 kg. The vehicle has become very popular not only in Russian off-road conditions, but has also been successfully used in large cities in various capacities (pictured in the article).
In particular:
- As a traffic police car;
- As a fire engine;
- ambulance;
- grocery store;
- Public utility vehicle, etc.
Electronic components
Wiring UAZ 452 was a simple single-wire circuit.
Structurally, she had the following solutions:
- The role of the second wire was played by a metal body and units and assemblies attached to it;
- All electronic components and actuators had a "-" displayed on the case. The price of such a decision justified the imperfection of the scheme.
power unit
The engine compartment is located directly in the passenger compartment, as this is due to its design.
Access to components and assemblies is also carried out from the passenger compartment, by removing the cover, which:
- Provided protection for the driver and passengers from the penetration of exhaust gases;
- Protected from dust and dirt;
- It served as an additional heating element (passive - from heating).
The previously used engine from Pobeda was replaced with a more modern engine from the 21st Volga. This was facilitated by the launch of a production line at the Zavolzhsky Motor Plant in 1964.
Passive vehicle safety
The design of the "Baton" with a cabover layout also initially raised a number of questions regarding safety. However, a series of crash tests conducted back in 1971 at the Dmitrovsky training ground proved that in most emergency situations, the driver and passengers of the UAZ 452 have a chance to avoid injury.
What is included in the electrical circuit
What features does automotive electrics have on old cars manufactured by the Ulyanovsk Automobile Plant?
Electronic components
The UAZ 452 wiring diagram itself is quite simple - single-wire.
By its design, the wiring diagram of UAZ390995 or another model is characterized by the following solutions:
- The body of the vehicle is used as the mass.
- Any electrical equipment of the old-style circuit on the UAZ 409 or another model, as well as actuators, are equipped with a negative terminal that is connected to the car body. According to experts, in general, this scheme is imperfect.
According to the operating instructions for electrical equipment, the driver must from time to time diagnose the condition of the integrity of the contacts. We are also talking about their oxidation. If the driver notices the presence of oxidation on the terminals, he must process them using fine-grained sandpaper.
Engine compartment
In this case, the engine compartment is located directly in the passenger compartment in accordance with the design of the machine.
The very access to the electrical circuit and other mechanisms and assemblies is made precisely from the passenger compartment, as a result of dismantling the cover, which:
- Designed to protect the motorist and passenger from exhaust gases entering the passenger compartment.
- Allows you to protect the interior of the car from the penetration of dirt and dust.
- Performs the function of an additional heating device, in particular in a passive way, as a result of heating.
Previously, the UAZ 396255 and other models with a carburetor used an engine from the legendary Pobeda, which was later replaced by a more advanced and modern unit. In particular, the engine is from the Volga. This decision at one time, back in 1964, was facilitated by the serial launch of the production line at the ZMZ enterprise. Despite the fact that many domestic motorists claim that the UAZ 390994 scheme, the injector in the engine compartment is located in an inconvenient place due to the lack of a hood, this is not so. Dozens of years of operation have proven that the absence of a hood in no way affects the diagnosis and maintenance of a car.
Passive safety
The very design of the domestic Loaf with the absence of a hood at first raised many questions in terms of the safety of the driver and passengers. As a result of several dozen crash tests that were carried out back in the early 70s of the last century, it was found that the car is no less safe when compared with other domestic cars. As the results showed, in the event of an accident, both the driver and the passengers of the car have a good chance of avoiding injuries in an accident.
Subtleties of maintenance UAZ 469
During the operation of each car, its technical condition deteriorates, the UAZ 469 car is also no exception. In order to increase the service life of the machine and prevent malfunctions in time, it is necessary to know the subtleties of its maintenance, namely the subtleties of maintenance of all available mechanisms.
Let's look at some of the most important points:
First of all, pay attention to the frequency of oil changes. It is recommended to do this every 5000 kilometers.
At the same time, during the operation of an SUV, a decrease in oil by 10-12 mm relative to the lower edge of the filler hole is allowed.
It is also necessary to periodically carry out maintenance of the gas distribution mechanism, which consists in cleaning the valves from carbon deposits and grinding them.
The oil filter is changed by unscrewing it from the cylinder block counterclockwise. Before installing a new oil filter, its O-ring must be lubricated with engine oil. The new filter is wrapped to a degree that excludes oil leakage.
The crank mechanism of the car needs to tighten the cylinder nuts every 1000 km. run.
The engine cooling system must be filled with soft fresh water with a low salt content and during operation periodically remove scale and debris from the system, as well as adjust the tension of the fan belt.
The clutch mechanism also needs maintenance. In addition to the fact that it is necessary to lubricate the clutch release bearing located on the right side of the crankcase in a timely manner, it is also necessary to clean the lower part of the crankcase after driving on dirty roads.
As for the maintenance of the gearbox, it all comes down to the periodic lubrication of the part, this should also not be forgotten.
A few more subtleties of operation of the UAZ 469
Of course, even, probably, the manufacturer himself cannot know all the subtleties of the car, so we will try to tell you everything to the maximum. So, a few more subtleties:
- Reverse in the gearbox and downshift in the transfer case must be engaged only after the vehicle has come to a complete stop.
- Always disengage the clutch on steep slopes to avoid breaking the clutch disc.
- Never exceed the speed limit (more than 60 km/h) with the front axle on, and while driving on dry and hard roads, it can be turned off altogether.
- Also, in no case do not allow the inclusion of the front axle with the front wheels off.
- It is necessary to independently periodically check the external threaded fasteners and tightening during the operation of the vehicle.
- Be attentive to the chassis of the car and avoid shock loads on it.
- When driving on particularly dusty roads, to create air pressure in the passenger compartment and reduce dust penetration, open the hatch in the middle part of the front end and close the rotary windows of the doors.
Causes of breakdowns
As a rule, the need to replace the main components at the gearbox arises with their natural wear and tear.
Causes of gearbox breakdowns
The main reason for oil leakage from the gearbox is the presence of an increased level of fuel in the system. For a gearbox on a UAZ, high-quality oil should be used. If the liquid does not have the proper quality, then characteristic noises from the side of the box may occur due to this. When the synchronizer or its parts are worn, it is always difficult to change gears
Pay attention to the details of the switching mechanism. When the gear teeth are deformed, self-disengagement of gears is often noted.
Finally
Many of us remember the legendary car.
Therefore, his appearance at the show dedicated to the Olympic Games was perceived as part of our glorious history of the development of the domestic auto industry.
Loaf was awarded participation in the 2014 Olympics
Rice. 246. Scheme of electrical equipment of cars UAZ-3962 and UAZ-2206:
1-front lamp; 2-headlight; 3-turning headlight; 4-lantern special sign; 5-repeater of direction indicators; 6 washer motor; 7-wiper motor; 8-wiper and washer switch; 9-beep; 10-cabin ceiling switch; 11-cabin cover; 12-switch of a sound signal; 13-speedometer; 14-signal high beam headlights; 15 voltmeter; 16-oil pressure gauge; 17-signal lamp of emergency oil pressure; 18-coolant temperature gauge in the cylinder block; 19-signal lamp for emergency overheating of the coolant in the radiator; 20-pointer of fuel level in the tank; 21-thermal fuse; 22-foot light switch; 23-alarm switch; 24-pin socket; 25-block of fuses; 26-signal lamp for turning on the parking brake; 27-signal lamp of an emergency condition of a hydraulic drive of brakes; 28-signal lamp of direction indicators; 29-switch of direction indicators; 30-interrupter of direction indicators; 31-ignition switch; 32-switch of the signal lamp for turning on the parking brake; 33-switch of the signal lamp of the emergency condition of the hydraulic drive of the brakes; 34-sensor signal lamp emergency overheating of the coolant in the radiator; 35-sensor signal lamp emergency oil pressure; 36-sensor oil pressure indicator; 37-sensor of the coolant temperature indicator in the cylinder block; 38-central light switch; 39 generator; 40 voltage regulator; 41-reversing light switch; 42-switch of the fan motor in the cab; 43-switch of the electric motor of the heater fan in the cab; 44-switch of the electric motor of the heater fan in the cabin; 45-brake signal switch; 46 spark plug; 47-sensor-distributor; 48 additional resistance; 49-ignition coil; 50 starter; 51-additional starter relay; 52-battery; 53-switch "mass"; 54-fan motor in the cab; 55-heater fan electric motor in the cab; 56-heater fan motor in the cabin; 57-plafonds in the cabin; 58-sensor fuel gauge in the tank; 59-cigarette lighter; 60-emergency vibrator; 61 transistor switch; 62-electronic carburetor control unit; 63-solenoid valve; 64-microswitch; 65-fog light switch with built-in turn-on signal lamp; 66-switches of ceiling lamps in the cabin; 67-rear light; 68 - license plate light; 69-reversing lamp; 70-pin trailer socket; 71-fog lamp; 72-valve unbalance float chamber carburetor
a-generator connection diagram with built-in integrated voltage regulator
Wire color code: B-white; G-blue; Y-yellow; 3-green; K-red; Kch-brown; O-orange; R-pink; C-gray; f-violet; H-black
1. Pos. 42 and 54 are installed on tropical vehicles. 2. Pos. 62, 63, 64 with a K126-GU carburetor are not installed. 3. Pos. 3, 4, 70 are installed only on the UAZ-3962 car
To ensure the operability of all electrical devices on any car, an electrical circuit is used. In this article we will talk about the legendary domestic cars - UAZ. What is the electrical circuit of the UAZ Loaf car, what are its features - read about this below.
