What are the causes of starter freewheeling failure?

[MacJake]

The causes of starter freewheeling failure are as follows: 1. Whether the starter drive gear and engine flywheel ring gear are excessively worn or the teeth are broken. 2. Whether the friction clutch is intact and effective, and whether the spring tension meets the specified value. 3. Due to long-term use and frequent exposure to high temperatures, the starter transmission fork is prone to fatigue, even distortion and deformation, losing its proper performance. Extended content: The troubleshooting methods for starter failure are as follows: 1. Clean and disassemble the starter, and visually inspect the wear of the shift fork and shift fork ring to see if there is excessive wear or breakage. 2. While performing a performance check on the friction clutch (engagement device), also check the spring extension tension. 3. Inspect the wear degree of the starter drive gear and engine flywheel ring gear separately, or use special tools to measure the taper of the gear teeth.