What is the problem when the starter motor smokes?
2 Answers
The reason for the starter motor smoking is that the resistance is too high when the starter motor is rotating. It is recommended to disassemble the starter motor to check the point card or the rotor shaft. The following is a relevant introduction about the starter motor: 1. It is a short-circuit motor: The starter motor, also known as the motor, can convert the electrical energy of the battery into mechanical energy to drive the engine flywheel to rotate and achieve engine startup. The car starter motor is a short-circuit motor. When installed in the car, the ignition motor starts the engine with a large load and high current, resulting in high temperature and thus smoke. It is normal if it does not smoke when taken down and operated without load. 2. The usage time should not be too long: Each use of the motor should not exceed 5 seconds, and continuous use should not exceed 5 times. Excessive use will cause it to burn out. The battery, also known as the accumulator, is a type of battery. Its working principle is to convert chemical energy into electrical energy.
That time when I was driving my old car, the starter suddenly started smoking with a burnt smell, and I quickly turned off the ignition and got out. It might have been caused by a short circuit in the coil or internal wear, as the starter motor draws an extremely high current and can easily overheat after multiple failed ignition attempts. I suspect the wiring harness had aged or corroded in parts. Later, the repair shop found that unstable battery output voltage had burned the insulation layer. That experience taught me never to ignore any smoking situation—immediately shut off the engine to prevent fire hazards. It's best to call for a tow truck right away and get it repaired. Regularly check battery connections and avoid moisture corroding the circuits. Routine maintenance and inspections of the starting system, such as motor bearing lubrication and coil testing, can significantly reduce such risks.
