Main Engine 4-Stroke · Main Engines (4-Stroke)
Maintaining optimal performance in marine engines requires vigilant inspection and proactive maintenance. With Wärtsilä's 12VW22SG model, continuous low-load operations can lead to piston ring wear and peeling, especially with chrome-ceramic rings due to inadequate oil film at lower loads. Regular visual inspections of the piston crowns by borescope are essential, alongside monitoring the residual Base Number (BN) in cylinder oil—levels must remain above BN10 for fuels with sulfur content between 0.1% and 0.5%. Additionally, cold corrosion in cylinder liners during low-load operation is a concern; maintaining cylinder cooling water temperature close to alarm limits and ensuring proper selection of cylinder oil are critical preventive measures.
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