Is It Normal for a Motorcycle Engine to Have Oil Seepage?

1 Answers
VanAdalynn
07/29/25 4:14pm
Motorcycle engine oil seepage is not normal. Below are the specific causes and solutions for engine oil seepage: 1. Oil screw thread stripping: Oil leakage caused by the drain screw thread stripping. The solution is to use a larger tap to rethread, install a thread insert, and reinstall the drain screw. 2. Sand holes or cracks: Oil seepage caused by sand holes or cracks in the engine case. The solution is to use the riveting method (mainly used for repairing sand holes in the case) or apply aluminum repair adhesive. 3. Case damage: Hard damage to the case due to impact. The solution is to replace the case or apply aluminum repair adhesive. 4. Gasket seepage: Oil seepage from the case gasket. The solution is to replace the sealing gasket.
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