What is the reason for the abnormal noise in the manual transmission of the Venucia D50?
3 Answers
Reasons for abnormal noise in the manual transmission of the Venucia D50: low or deteriorated transmission oil level, excessive or insufficient gear meshing clearance, or poor gear meshing. Common causes of transmission noise: Low or deteriorated transmission oil level, excessive or insufficient gear meshing clearance, or poor gear meshing. Wear and damage of bearings. Abnormal gear meshing clearance. Metal peeling on gear tooth surfaces, broken gear teeth, or incorrect assembly. Insufficient lubrication due to lack of lubricating oil. Solution: Visit a 4S shop for repair. Precautions for using the transmission: Do not park with the gear engaged for a long time, as this can damage the transmission. Do not keep your foot on the clutch for extended periods, as this will wear out the clutch.
After driving my Venucia D50 manual transmission for a long time, I noticed a clicking sound when shifting gears, which is usually caused by synchronizer wear or gear damage. Aging synchronizers can make it difficult to engage gears, while damaged gear tooth surfaces can produce a metallic knocking sound. Transmission oil that has been used for too long and deteriorated or is insufficient in quantity can also easily cause abnormal noises, especially when the engine is hot, making the sound more noticeable. A bad bearing will produce a continuous humming noise, and a faulty release bearing will create a friction sound when the clutch is pressed. Aggressive driving habits, such as frequently riding the clutch, can also accelerate wear. If these minor issues are not repaired, a major overhaul may be required later. It is recommended to first check the condition of the transmission fluid—replace it if necessary—and avoid riding the clutch while driving.
For my manual Venucia with abnormal noises checked several times, focus on these points: For gear shifting noises, first check the wear condition of the synchronizer rings, especially reverse gear and second gear which are prone to issues. Clutch-related components should also be inspected; a faulty release bearing will produce a noticeable rumbling sound when pressing the clutch, and incomplete disengagement can cause gear scraping. Bearing noise is a continuous hum, and you can feel vibrations by touching the transmission housing. Worn synchronizer locking rings will lead to gear grinding sounds. Transmission fluid is the most easily overlooked; poor-quality oil or long intervals without changes can lead to inadequate lubrication and accelerated component wear. Broken gear teeth or damaged bearings require opening the transmission for inspection. If problems are found, don't push it—take it to the repair shop and let the mechanic lift the transmission for a closer look.
