New engineering work involving the overhaul of diesel engines on the offshore construction and dive support vessel (DSV) Rever Polaris, has been completed by power specialist Royston.
Engineers undertook the DG1 and DG3 24,000 and DG4 36,000 running hours service on the generator engines on board the 113-meter-long vessel at A&P Tyne’s facilities in the North East of England, as part of a comprehensive refurbishment and maintenance program of critical power units.
The 1999-built Polaris is part of Rever Offshore’s fleet consisting of specialist offshore support vessels (OSV), which provide dive support, light construction, subsea maintenance among other critical offshore services in the North Sea sector.
Aberdeen-based Rever Offshore, recently re-branded from Bibby Offshore, provides subsea construction; inspection, maintenance and repair (IRM); and offshore operational and maintenance support and services to the UK oil and gas industry.
The recent work by Royston covered the disassembly of the Wartsila W9L26 No.1 and No.3 diesel generators to fully refurbish cylinder heads, renew cylinder liner seals and overhaul pistons and connecting rods. Engineers completed deflection and bearing checks on the engines, while the fuel injection pumps were serviced, leak checked and dynamically tested and calibrated to specification.
The overhaul of Napier turbo chargers was also completed as part of the scheduled maintenance program.
Following completion of the work, load testing in line with customer requirements and the engine manufacturer’s specification was completed by the Royston team alongside at A&P shipyard.