Common Failures of BYD 1266846900 Oil pump gear for Song PLUS DM-i/DENZA D9 DM-i/DENZA D9 PHEV/DENZA D9 Hybrid
- Gear Wear: The oil pump gear (OE: 1266846900) in Song PLUS DM - i and DENZA D9 series often experiences wear, leading to reduced oil flow.
- Jamming Issues: Some users of DENZA D9 DM - i and PHEV models report that the oil pump gear gets jammed, causing abnormal engine noise.
- Insufficient Lubrication: Due to problems with the oil pump gear, Song PLUS DM - i and DENZA D9 Hybrid may suffer from insufficient engine lubrication.
Maintenance Tips of BYD 1266846900 Oil pump gear for Song PLUS DM-i/DENZA D9 DM-i/DENZA D9 PHEV/DENZA D9 Hybrid
- First, before installing the BYD oil pump gear (OE# 1266846900), make sure to clean the installation area thoroughly to prevent debris from entering the engine.
- Check the gear teeth for any signs of wear or damage. Replace the oil pump gear if there are visible issues, especially for Song PLUS DM - i and DENZA D9 series vehicles.
- When installing, apply a thin layer of high - quality engine oil to the gear teeth to reduce friction during initial startup.
- Align the oil pump gear precisely according to the manufacturer's marks. Incorrect alignment can lead to poor performance and premature wear.
- After installation, rotate the engine manually a few times to ensure the oil pump gear operates smoothly and there are no binding issues.
Caution: Do not overtighten the bolts when installing the BYD oil pump gear. Over - tightening can cause the gear to warp and damage the engine components.