Home » Case Studies » Emergency Onboard Repair of Cylinder Head Water Leakage in Yanmar 6EY26 Engine on Offshore Supply Vessel
Table of Contents
Case Study
Emergency Onboard Repair of Cylinder Head Water Leakage in Yanmar 6EY26 Engine on Offshore Supply Vessel
Table of Contents
Background
Industry
Marine
Solution
Inspection and
Breakdown Repair
Make & Model
Yanmar 6EY26
Engine
Asset
Offshore
Supply Vessel
Objective
To urgently identify and rectify a critical water leakage from the cylinder head to prevent a major engine breakdown and minimize vessel downtime.
Challenge / Problem Context
Water Leakage from Cylinder Head: Early signs of water leakage were observed, which risked leading to severe damage to engine pistons and bearings.
Urgent Vessel Operation Schedule: The vessel had a strict deadline to resume operations within 3 days, leaving limited time for inspection and repairs.
Risk of Engine Breakdown: If not resolved immediately, the leakage could result in complete engine failure, halting the vessel and increasing operational costs.
What Did We Do?
Immediate Deployment of Service Engineer: Dispatched a qualified service engineer on an urgent basis to the vessel site.
Complete Removal of Cylinder Heads: All cylinder heads were carefully dismantled for inspection.
Pressure Testing to Identify Root Cause: Performed a thorough pressure test and identified exhaust seat leakage as the root cause of water ingress.
Replacement of Root caused Components: Used available OEM spare parts to replace damaged components.
Efficient Onboard Repair Execution: Completed the breakdown maintenance within the 3-day operational window.
Results That We Achieved
Prevented Major Engine Breakdown: The timely Yanmar Engine Repair avoided further damage to pistons and bearings, preserving engine health.
Zero Unplanned Downtime: The vessel resumed operations within the required timeline, ensuring no delay in shipping schedules.
Customer Satisfaction with Rapid Response: Clients appreciated the urgent response, quick diagnosis, and availability of required spares.
