What to Do About a Leaking Half Shaft Oil Seal?

1 Answers
ODante
07/30/25 1:44am
Solutions for a leaking half shaft oil seal include: 1. Ensure the oil level is even when changing oil; 2. Clean the vent hole when servicing by disassembling the reducer; 3. Select a suitable and high-quality half shaft oil seal; 4. Install the oil seal correctly; 5. Replace aged oil seals promptly; 6. Check if the hub bearing is loose. Causes of a leaking half shaft oil seal are: 1. Overfilling the drive axle reducer with oil, exceeding the normal level; 2. Deterioration and aging of the oil seal reducing its sealing effect; 3. Gaps in the oil seal; 4. Blocked vent hole in the drive axle reducer; 5. Poor quality of the half shaft oil seal or loose installation with the half shaft sleeve; 6. Loose hub bearing or reducer bearing; 7. Wear of the half shaft journal leading to poor sealing.
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