We carry out the wiring diagram for electronic ignition on a UAZ
Classics of the domestic auto industry
Many UAZ vehicles are equipped with a contactless ignition system. It makes it possible to save fuel, reduces the amount of harmful substances in gases, and makes it much easier to start the car in winter.
The connection diagram for electronic ignition on a UAZ is not as complicated as it might seem at first glance. A person who has at least a little knowledge of technology will be able to repair and correct problems himself, if any arise.
How to set the ignition
In order to correctly adjust and set the ignition on a UAZ, you must follow the sequence of actions that are given in the user's repair manual.
Before you begin adjusting the ignition system, you must place the vehicle on an inspection pit or a special platform for repair work and apply the hand brake. The wheel mechanisms of the vehicle must be secured with a stopper or stop. The power unit must be turned off.
After this, you can begin installing the ignition. To do this, it is necessary to fix the piston of the first cylindrical element in the position of the highest dead center. In this case, you need to check that the hole on the crankshaft pulley coincides with the pin on the cover of the timing gear block. It is necessary to slightly lower the mounting bolt located on the plate to the distribution equipment sensor housing.
Then remove the cover from the distributor and rotate the crankshaft 180°. The octane corrector must be in the zero position. Then it is necessary to tighten the pointer to the housing of the distribution mechanism sensor with a bolt so that its position coincides with the octane corrector mark.
After this, we adjust the slider by rotating it counterclockwise. This will help eliminate gaps in the drive. When the tip on the stator coincides with the red mark, you can fix the plate with a bolt.
Then you need to replace the switchgear sensor cover and check that the ignition leads are installed correctly according to the operating order of the cylindrical mechanisms (1-2-4-3). You need to count in a counterclockwise direction. The ignition setup on the UAZ is completed.
Now it is recommended to start the power unit and warm it up to operating temperature (about +80°C). Then you need to sharply press the accelerator at a speed of 40 km/h on a straight section of the road.
If, when the speed increases to 50-60 km/h, the driver feels a short-term detonation, then the procedure was performed correctly.
In case of severe detonation, it is recommended to turn the distributor sensor 0.5-1 turn on the octane corrector scale in a counterclockwise direction.
If there is no detonation, you need to increase the advance angle by turning the sensor clockwise.
Ignition system on UAZ 469
The ignition system for the UAZ 469 can be made not only at a service station, but also with your own hands. It consists of:
Today, contactless ignition systems are most often preferred. The most interesting thing about them is the switch.
If the crankshaft rotates at a frequency of 500 revolutions per minute, it turns out that the signal at the sensor output will change too quickly. This mode is used if you start the engine with the starter. At this time, there will be not just one spark on the candles, but many, which will make it possible to start the car easily and quickly. Ignitions on UAZ have a simple design.
Contactless ignition is more convenient to use than contact ignition.
Installation instructions
Installing contactless ignition on the UAZ 469 is quite easy. It is easy to configure and install, and the reliability of the UAZ ignition can only please us. It works very accurately, even in the cold season, when starting the car is quite difficult.
Once a new system has been purchased, it must be installed. To install you will need:
Ignition on the UAZ 469 is done as follows:
Adjusting the ignition of a UAZ is a fairly simple task. With the engine running, you need to turn the distributor very slowly to find the position at which the engine will run smoothly and the speed will be high.
The UAZ 469 car has an ignition coil, which is also a kind of transformer that converts low voltage to high voltage. When the engine is running, current flows through an additional resistor into the primary winding of the ignition coil. It is located between the legs of the fastening brackets - in the insulator.
When the engine is started using the starter, the resistor is turned off, and the current flows into the primary winding without entering it, which makes starting the engine much easier due to the enhanced spark.
Advantages of contactless ignition of VAZ 2107
- There is no need for maintenance of the contact group (cleaning, gap adjustment).
- Increased reliability due to the absence of a contact group subject to wear.
- Stable, uniform spark distribution across the cylinders, regardless of engine operating mode and conditions.
- Increasing the life of the distributor by eliminating vibration and runout of the axis when the cams act on the contacts.
- Save fuel, increase power and reduce harmful emissions due to more complete combustion of fuel in the cylinders.
- Reliable engine starting at low temperatures due to stable spark plug voltage at low battery voltage and at low speeds.
Ignition system UAZ 469
To start the engine of any vehicle, it is necessary that the combustible mixture ignites at the right moment in the combustion chamber. Effective operation of the piston system is achieved by correctly setting all parameters. The UAZ 469 ignition system allows you to operate the vehicle regardless of climate, temperature, humidity and other external factors.
The ignition of the UAZ 469 ensures that all elements are in good working order and flawlessly perform their assigned functions. For UAZ 469, the ignition circuit consists of the following components:
Each individual component of the electrical circuit must not allow breakdown to the car body and current leakage.
The ignition of a UAZ 469 car includes the following elements:
The ignition order of the UAZ 469 is strictly regulated; the spark occurs exactly in the specified sequence. An important point is not only the timeliness of the spark supply, but also its size. If the slightest interruption occurs, the entire chain is reconfigured.
A car battery is not designed to produce sufficient current and voltage required to ignite a combustible mixture. The charging current is only capable of spinning the engine flywheel for a short time. For stable operation of the engine, the entire ignition system of the vehicle must begin to fully function.
This important component of the machine is designed to significantly increase the power characteristics of the battery. Proper ignition, together with the battery, sends the spark plugs the sufficient volume and current required to reliably ignite the fuel mixture.
Operating principle of the ignition system
Ensuring and maintaining timely ignition of the air-fuel mixture for the efficient functioning of the internal combustion engine is the main task of ignition. This occurs in strict accordance with the established operating order of the engine cylinders. An ignition coil 16 is connected in series to the electrical circuit along with an additional resistance 14. It is automatically closed when the engine is started by the starter.
This significantly increases the breaking current of the primary circuit. Ignition coil 16 creates high-frequency pulses in the vehicle's on-board electrical system. High voltage flashes create a breakdown of the spark gap in the spark plugs 12, screwed into the top point of each cylinder, where the working fuel mixture is compressed.
The coil consists of primary and secondary windings. The primary winding is wound on top of the secondary. Inside the coil there is a core and a ring magnetic circuit. Both of these elements are made of special electrical steel. Reliable sealing of the coil is carried out by a carbonite cover in a casing with a rubber gasket.
What are the ignition systems on the UAZ 469
Contact ignition on UAZ 469
. Now it is recognized as obsolete. However, domestic manufacturers continue to use it. The system launches a pulse of a certain power. This impulse comes from the ignition distributor. The contact ignition circuit of the UAZ 469 is simple and uncomplicated. This is its advantage. The driver can fix any malfunction and make adjustments with his own hands. The prices of components are low.
Transistor or contactless ignition of UAZ 469
. Contactless ignition systems are installed on many types of vehicles. It has a number of advantages over the contact design. The spark produced by such a device is much more powerful. This occurs due to an increased level of electrical voltage in the secondary winding of the ignition coil. The transistor ignition system is equipped with an electromagnetic mechanism. It ensures stable, constant operation of the entire system, uninterruptedly transferring energy to components, parts, and mechanisms. Correctly configured ignition with an efficient internal combustion engine guarantees high power and significant fuel savings. Long-term reliable performance is ensured by compliance with the frequency of maintenance of the distributor drive. It must be lubricated and adjusted every 10,000 km. The difficulty of repair is a disadvantage of the contactless ignition system. It cannot be repaired independently, since this requires special diagnostic equipment, available only in service centers and service stations.
Electronic ignition on UAZ 469
. This type of ignition is the most technologically advanced, but at the same time expensive. Modern car models are equipped with similar devices. It has complex technology that provides not only high torque, but also a number of other engine indicators. Advantages: simple adjustment of the advance angle, no mandatory check of contacts for oxidation. In engines equipped with electronic spark protection, the fuel mixture burns 100%. Repairs must be carried out only at a service station.
Underwater ignition on UAZ 469
. This is a sealed ignition system, in which there is no fear of flooding with water, falling into deep holes, or driving in open areas during snow and rain. When the ignition is normal - contact or non-contact, 50% of the spark power is actually lost inside the distributor, between the cover and the runner. Let's find out why this happens.
There is a small gap between the electrical contacts, which are the distributor cap and the slider. To pass electrical energy through this space, most of the additional current is expended. With contact ignition, for these purposes, another part of the energy is spent on the functioning of the cam.
The underwater ignition is designed in such a way that the spark from the coil directly hits the spark plug. Carrying out this process, it does not lose its main power, except for the resistance of high-voltage wires. Here the loss of power is quite insignificant, so it can be ignored.
It is worth noting that on most foreign-made cars, a coil is placed separately on each cylinder, which is located immediately on the spark plug, and the loss is accordingly quite insignificant.
Source
How to check the ignition coil
Checking is necessary in the following cases:
- The mechanism does not stall when the ignition is turned off.
- A short circuit has occurred.
- The spark plugs in the ignition system have failed.
- The coil heats up, causing the system to overload.
In order to check the ignition coil, you need to turn off the power unit and open the hood. Then you need to find the coil. To do this, it is recommended to follow the wires that lead from the distribution mechanism in the opposite direction. After this, you need to disconnect 1 high-voltage wire from the spark plug. Before the procedure, you must wait until the engine has completely cooled down. This may take 15-25 minutes.
Then you should dismantle the spark plug using a special nozzle. This must be done carefully and make sure that debris does not get into the hole, because. this will lead to malfunction of the power unit. You need to connect the wire back to the spark plug. To perform this operation, it is recommended to use pliers with insulated handles.
After this, you need to touch the threaded side of the candle to the bare metal. When the ignition is turned on, all elements of the vehicle’s electrical equipment will begin to work, which means that the coil is functioning properly. The driver performing repair work should see a blue spark. If it is not there, then the system is faulty. If an orange spark occurs, it means that insufficient voltage is being supplied. This may be due to poor contact, low current, or defects in the coil body.
Another way to check the ignition coil connection:
- Remove the coil from the car. To do this, you need to disconnect the wires of the distribution equipment, remove the fasteners from the coil body using a wrench.
- Determine the condition of the mechanism using an ohmmeter. You need to touch the probes to the primary winding, touching 2 contacts at the same time. After this, it is necessary to measure the condition of the secondary winding and compare the obtained indicators with the factory ones, which are in the repair manual.
Before starting work, it is necessary to place the transport on a flat surface and secure it with special locking devices. When checking the device, it is recommended to wear protective clothing (mask and goggles, as well as gloves).
