How to set the ignition on a VAZ 2109
Content
In order to understand how to set the ignition on a VAZ 2109, you need to understand how the ignition system works and what it affects. The ignition system is responsible for creating a spark in the cylinder at a certain moment - the moment of ignition, it is also called the ignition angle.
It often happens that the owners of these cars, with poor engine operation, grab to repair the carburetor, while the problem may lie in something completely different, namely, in setting up the ignition system.
The consequences of an incorrectly set ignition
In order to more accurately diagnose the problem of engine operation, consider the symptoms that appear when the ignition is incorrectly set:
- uneven engine idling;
- thick black smoke from the exhaust pipe after starting the engine and while driving (indicates poor combustion of the fuel-air mixture). Poor combustion of the mixture is preceded by too early ignition;
- dips in revolutions when you press the gas pedal on the go;
- noticeable decrease in engine power and throttle response.
Ignition adjustment methods
You can correctly set the ignition in two ways, both with the help of special equipment and with improvised means:
- with a stroboscope;
- using an ordinary light bulb.
Of course, using a stroboscope, it will be much easier to adjust the ignition angle, the cost of this equipment is low.
In any case, regardless of the chosen adjustment method, it is necessary to carry out preparatory work, namely, warm up the car to operating temperature (80-90 degrees) and set the speed to 800 per minute using the fuel regulator on the carburetor body.
How to set the ignition on a VAZ 2109 with a stroboscope
- The first thing to do is make sure the flywheel is visible. To do this, you need to remove the protective rubber band from the gearbox housing;
- Instead of the high-voltage wire of the first cylinder on the camshaft cover, we connect the strobe sensor;
- We connect the stroboscope to the battery;
- Start the engine.
Next, you need to unscrew the distributor mount.
The stroboscope must be directed to the flywheel through the window; a mark on the flywheel should appear in time with the stroboscope. We change its position by smoothly turning the distributor.
As soon as the mark is aligned with the risk, it means that the ignition is set correctly.
How to set the ignition without a stroboscope with a light bulb
Without a stroboscope, you can correctly set the ignition using a light bulb, consider the algorithm of actions:
- disconnect the wire from the distributor to the ignition coil. It is necessary to connect a wire from a light bulb to it (for example, a carrier). Another wire from the lamp must be connected to the ground of the car (body);
- similarly to adjustment with a stroboscope, unscrew the distributor mount;
- turn on the ignition - the light should light up. Next, you need to smoothly rotate the distributor until the lamp goes out. After the lamp has gone out, we also smoothly turn the distributor in the opposite direction, and as soon as the lamp lights up again, you can tighten the distributor mount.
Of course, this method will not allow you to adjust the ignition with great accuracy, as with a stroboscope, but you can still achieve good and correct engine operation.
