1. Excessive Oil in Engine: Overfilling the engine with oil can lead to excess pressure, causing oil to be expelled through the exhaust. Check the oil level and ensure it's within the recommended range.
2. Damaged Piston Rings: If the piston rings are worn or damaged, they may fail to seal properly, causing increased pressure that forces oil past the rings and into the combustion chamber, resulting in oil being expelled through the exhaust.
3. Worn Piston or Cylinder Walls: Excessive wear on the piston or cylinder walls can lead to a poor seal, allowing pressurized gases and oil to bypass the piston and enter the exhaust.
4. Faulty Oil Control Rings: The oil control rings on the piston play a crucial role in controlling the movement of oil between the piston and cylinder walls. If these rings are damaged or stuck, they may fail to effectively prevent oil from entering the combustion chamber.
5. Crankcase Ventilation (CCV) System Issues: The CCV system helps release pressure and gas build-up in the crankcase. If there are issues with the CCV valve, hose, or other components, excessive pressure may cause oil to be expelled through the exhaust.
Recommended Solution:
- Check Oil Level: Ensure the oil level is accurate. If necessary, drain excess oil to bring it within the recommended range specified in the user manual.
- Engine Inspection: If the oil level is correct, further investigation is necessary. Consider disassembling the engine to check the piston rings, piston, and cylinder walls for damage or wear. Replace any damaged or worn components with genuine Baja parts.
- Professional Repair: If you are not comfortable with engine disassembly, it's advisable to seek the assistance of a professional small engine repair service.
Remember, operating an engine with excessive oil emission is not recommended and can further damage the engine. If you're uncomfortable performing engine repairs, consult with a qualified small engine mechanic for proper diagnosis and repair.
