The ignition coil is faulty and damaged, preventing the engine from starting and operating normally
Failure of the ignition coil will cause a partial short in the winding secondary, causing the engine to be weak or even unable to start. The main reasons for its breakdown include reduced dielectric strength of the high-voltage insulation of the secondary winding and excessive operating voltage. Among them, the decrease in dielectric strength of the high-voltage insulation of the secondary winding is mainly caused by humidity in the secondary winding, overheating of the ignition coil, and aging of the insulation material. The ignition coil operating voltage is too high, usually due to too wide a spark plug electrode spacing and too high a generator voltage. In addition, when the high voltage line is disconnected, the electricitygenerated high voltage tricity has no way to pass through, which may also cause the ignition coil to fail.
For example: a Tianjin Xiali TJ7100 car is easier to start when the car is cold. When the engine water temperature reaches normal water temperature, the operating stability gradually decreases, accompanied by problems with the starter gear and. the flywheel ring. The sound of teeth clashing. When the ambient temperature around the motor increases, the motor will begin to vibrate violently and even stop rotating, making it difficult to restart.
Based on the above phenomenon, through comparative tests of high low temperature and high voltage fire tests using new and old ignition coils, it was found that the diode and the secondary coil of the ignition coil assembly were broken. down. Analysis of the breakdown phenomenon:When the car is cold, the failure of the ignition coil and diode is not very obvious, and it can still work. When the engine reaches its normal operating temperature, the ignition coil temperature increases due to the increase in ambient temperature, resulting in a decrease in the insulation level. A short circuit occurs in the secondary, the ignition voltage decreases, the spark plug misfires and. the engine stops running; and because of the diode in the ignition coil prevents the current flowing through the additional resistor from returning to the electromagnetic switch of the starter
How to install the spark plug in Senjiu generator:
1. Open After disassembling the engine cover and engine panel, you can see the cylinder lines. Generally, the number of cylinders in an engine depends on the number of cylinder lines.
2. Removethe steel wire directly by hand, but be sure to note that one cylinder wire corresponds to one spark plug, and remember the order of pulling the cylinder wires.
3. Use an extension socket to unscrew the spark plug.
4. Just install the new spark plug, but the spark plug gap is very large. If the gap is too small, it will burn easily. If the gap is large, the ignition will become. weak or even misfires. The general deviation is 0.7-0.9mm.
Morijiu generators are produced by Morijiu (Chongqing) Machinery Co., Ltd. The company was established on June 20, 2019, with a registered capital of 5 million yuan, and its legal representative is Li Kai. Its address is located at No. 21-22, Building 4, No. 5, Torch Avenue, Jiulongpo District. , Chongqing.