James Smith        July 15, 2020

Common causes engine fails to start: battery power is insufficient; Incorrect ignition timing; Start system failure; Electric spark quality is not good enough; Fuel system failure and so on. In this article, we will learn how to eliminate the ignition system failure. Ignition coil. There are open circuit and short circuit in the primary winding and secondary winding.

James Smith        July 15, 2020

Rough idling engine in conventional ignition system . The causes of idling engine (1) Distributor cap is dirty, damaged and leakage of electricity. (2) Damage of high voltage wire leakage, loose, fracture. (3) The high-voltage conductor is inserted incorrectly. (4) Open circuit and short circuit in the primary winding and secondary winding. (5) Spark plug carbon deposition (6) Spark plug electrode burning loss or the gap is too large. (7) The initial ignition advance angle is too large.

James Smith        July 14, 2020

Engine fails to start in conventional ignition system How to diagnose: (1) Visual inspection First, Check for loose the coil to distributor high tension wire and low-voltage circuit between the ignition coil and distributor. If so, restart the engine and see if it can be started after troubleshooting. If the\tvisual examination does not find any problem, proceed to the next troubleshooting step.

James Smith        July 14, 2020

Oil filled ignition coil and dry ignition coil According to magnetic circuit of ignition coil, which can be classified to types: oil filled ignition coil (open magnetic circuit) and dry ignition coil. Oil filled ignition coil The oil-filled ignition coil is also called open magnetic circuit type ignition coils. The oil-filled ignition coil applied in the electronic ignition system and its structure is the same as the ignition coil used in the contact breaker (point) system, as known as conventional ignition system

James Smith        July 08, 2020

The engine starts smoothly, but as soon as you release the ignition switch (disconnect the ignition switch) the engine shuts down. The possible causes for this phenomenon include: 1)\tThe connection of the additional resistance of the ignition coil is broken or the additional resistance itself is burnt out (ignition coil with additional resistance). (2)\tThere is an open circuit between the ignition switch \"I\" terminal and the ignition coil \"+\" terminal. (3)\tPoor ignition switch contact.

James Smith        July 08, 2020

The diagnostic methods of engine fail to start in electronic system are similar with the conventional ignition system. If you have mastered the skills to diagnose the problem in conventional ignition system, it will be easy to diagnose your car with electronic ignition system. (1)\tVisual inspection First, Check for loose the coil to distributor high tension wire and low-voltage circuit between the ignition coil and distributor. If so, restart the engine and see if it can be started after troubleshooting. If the\tvisual examination does not find any problem, proceed to the next troubleshooting step.

James Smith        July 08, 2020

Conventional breaker point ignition system relies on the primary current of the ignition coil which turned on and off by the contact of the breaker, lead to produce the secondary high voltage of the ignition coil. The structural form and working mode have the following deficiencies.1.\tPoor working reliability Conventional breaker point ignition system reduces the spark of contact by means of parallel circuit capacitor between contacts, but it still has spark in contact point during operation, so that the contact is easy to be ablated, oxidation, resulting in bad contact.

James Smith        July 08, 2020

The oil-filled ignition coil applied in the electronic ignition system is shown as below. Its structure is the same as the ignition coil used in the contact breaker (point) system. The oil filled ignition coil has not additional resistance to connect the primary winding circuit, while which is used in electronic ignition system. In addition, the resistance of the primary winding of the ignition coil is smaller than that of the ignition coil in conventional ignition systems.

James Smith        July 08, 2020

What are sympotoms of engine failures and how to diagnose ? Why does engine fail to start? What causes engine idled unsteadily? Why the engine shut off immediately after starting? In conventional ingnition system, high-tension lead, spark plug, ignition switch should also be tested. In this article, we will learn about it. When engine has a fault in conventional ignition system ,usually we should do as follows: (1)Visual Inspection First, Check for loose high voltage wires and low-voltage circuit between the ignition coil and distributor. If so, restart the engine and see if it can be started after troubleshooting. If the\tvisual examination does not find any problem, proceed to the next troubleshooting step.

James Smith        July 08, 2020

Traditional coils (oil filled/wet coils/can type). The oil-filled ignition coil is also called open magnetic circuit type ignition coils. In conventional ignition system, oil filled ignition coil was used widely, and also applied in the electronic ignition system later which structure is the same as the ignition coil used in the conventional ignition system. Ignition coil has two coils of wire, the primary coil and the secondary coil.