Early or later ignition. What's better? Best is optimal. But the first two cases can bring the owner of the car a lot of headache and spent nerves, for it is not so easy to determine the problem simply. In all there are their nuances that need to be considered closer.

Briefly about the ignition

First you need to talk about the ignition in general, to understand what it is necessary to configure. On gasoline engines of internal combustion, there are a number of components responsible for the proper and timely supply of voltage to the candle, in order to give the necessary spark to ignite the fuel mixture. These components are combined into a mechanism called the "Triber" or "Interrupter-distributor", which in turn is installed on the engine cylinder block, and the timber shaft comes to move from the engine camshaft. The class of the tramblor is equipped with cams, the main task of which is the opening of the chain at the right moment, after which the spark is occurred on the candle.

In order for the motor's motor to give the desired power, the appearance of sparks in the cylinder should coincide with the moment of the most efficient use of all the energy of the compressed fuel mixture. When the spark is fed, the energy of flammable gases will continue to meet the movement of the piston. In the case of late spark, the energy is already "after" the outgoing piston and does not fully implement itself.

One of the main deficiencies of the tramblor is its mechanical wear and, accordingly, the influence of this process both on the quality and the time of filing the spark. This may noticeably affect the operation of the motor and require interference in its operation and configuration.

Visual Scheme and Ignition System Device in Gasoline Engine

Symptoms and signs of early

• Excessive detonation (piston defect, rod destruction).
• Well audible sound of a knock in the engine (elevated wear).
• Power loss (especially noticeable on small revolutions).
• Increased fuel consumption.

Symptoms and signs of late

• Power loss.
• Bad launch (because of what the battery suffers).
• Increased fuel consumption.
• Overheating of the engine (can enhance).

Pleasant little in the first, that in the second case. Nevertheless, some car enthusiasts (in particular, the owners of domestic cars) later put the ignition when starting and warming the motor. Others make the ignition a little early (at 1 risk), which leads to noticeably improved dynamics at elevated revs. Only here in the latter case on low turns as a result will be observed with power. So everything is at your own risk.

If it is worth a HBO (car per gas)

The main reason for the installation of gas-blade equipment on the car is to reduce the cost of fuel. Gas exits almost two times cheaper than high-octane gasoline, and for many it is a significant argument to installing HBO. But there are a couple of moments to pay attention to. It will not work completely on gas, and the need for gasoline always remains (heating, work at elevated loads or simply gas ended). In addition, the gas is consumed faster and has an increased octane number, which is why the fuel and air mixture can be treated at the issue stage and have a negative thermal effect on the graduation path. So optimization of ignition and the combustion process of the fuel mixture on GBO vehicles is one of the main tasks to the solution, and the correct equipment setting will contribute to even greater fuel economy.

A little about Diesels

The above symptoms on a gasoline engine are largely characteristic of diesel engines. True, the reasons in view of the other principle of work in this case should be sought in the other.

The main differences between the diesel engine from the gasoline is the method of fuel ignition. In diesel, this is due to the self-ignition of the diesel fuel that comes into contact with the cylinder is strongly compressed and preheated air.

The ignition adjustment in diesel engines is to exhibit the desired angle of a diesel fuel injection, which should be supplied exactly in the peak point of the compression tact. In the case of an incorrectly exhibited, the injection is obtained late. This leads to non-optimal combustion of the fuel and air mixture and the engine imbalance.

So in diesel engines the main element of the ignition system can be considered a high pressure fuel pump (TNVD). Together with diesel nozzles, it is he who is responsible for the dosage and fuel supply to the cylinders.

Scheme and basic fuel system nodes in diesel engines

Diagnostics and troubleshooting

Will be better if the car warranty will check official representatives

How to check on the carburetor engine

The list of necessary equipment is simple:

• stroboscope
• tachometer (if the car does not have any on the dashboard),
• wrench on "10".

Video on the ignition setting on the example of the car VAZ 2109

How to determine in the injector

In this case, everything is often resting in electronics and is solved by programming the electronic control unit (ECU). As a result of the operation of the car in the memory of the ECU with time, various errors can accumulate. Over time, they can lead to firmware failures and incorrect engine operation, including ignition systems. It is only necessary for the presence of special equipment to identify, reset the accumulated errors and flashing the "brains" of the car. Unfortunately, such a job is hardly under the power of novice.

The process of adjusting and calibrating the electronic control unit (ECU)

Often, the reason may be in the detonation sensor, based on the data of which the injector adjusts the fuel injection into the cylinders. The output of it will result in the wrong operation of the injector.

What actions are effective on a diesel engine

You can try to set the injection angle by label through the fuel pump displacement. The method is more designed for diesel motors with mechanical fuel equipment. But the labels may not be, so that in this case will have to put an angle of experience. It will be necessary to remove a high pressure tube with one of the nozzles, then put on a transparent tube on it. The next step will be a measure of the upper border of fuel in the tube when the ignition is turned on and the appropriate tag is turned on. Next are set on the labels crankshaft and distribution shafts.

Adjusting the moment of injection on the diesel (video)

On cars with HBO

There are two ways to solve:

• Increase the degree of compression, thereby accelerating the combustion rate of the gas-air mixture.
• Displacement angle of advance towards earlier.

The second is easier to implement and less cost. It is achieved by installing a variator of the ignition advance angle connected to the crankshaft position sensor with the subsequent adjustment of its data to a given value. Along the way, the variator is connected to the gas valve and its work starts only when GBO starts, in order not to interfere when the engine works on gasoline. The angle offset will lead to an earlier ignition of the gas-air mixture, which will allow it to be inserted to burn until the opening of the exhaust valves, thereby protecting the same valve and catalyst from excessive thermal exposure.

Device for displacement of the ignition angle to the earlier in the presence of HBO

Ignition problems, regardless of whether it is early or later, the good does not promise anything. Perhaps small deviations, someone will not be considered critical, but still increased engine wear, its unbalance will be able to know about themselves, and work will not be more like an example. If you feel that your own strength and understanding of the issue is not enough, better contact your skilled specialists.