Offshore - Equipment
Royston has completed engine overhaul work on the Stena Spey
Semi-submersible contract for Royston UK’s Royston Marine has completed the overhaul of diesel generators onboard the semi-submersible mobile offshore drilling unit Stena Spey. The work, which is part of an on-going diesel engine maintenance and service programme for vessels owned by international drilling contractor Stena Drilling, saw cylinder heads, pistons and conrods overhauled as part of an extensive 12,000 running hour service of one Rolls Royce Bergen KVGB12
Diesel generators by Royston engineers on-board the vessel while it was located at Orkney. Reflecting continued success for Royston in the offshore marine services sector despite current challenges, the work follows the previous overhaul of diesel power units on-board other Stena vessels, including the Stena Don rig, and the 58,000 dwt Stena IceMAX and Stena Carron drillships. The engines were stripped down to allow engineers to carry-out maintenance and repair work on the 12-cylinder heads, two-unit inspections, main bearing inspection, camshaft inspection, timing chain and drive inspection. Other work, which included repairs to water leaks in No.3 generator, involved removing of cylinder head, piston and connecting rod and renewing the cylinder liner. Following the service, successful trials were completed to check the performance of both engines and repair work was in-line with the manufacturer’s specification. Meanwhile, work to overhaul main propulsion diesel engines on the 1,659 gt seismic support vessel Mainport Pine operated by Irish Mainport Holdings, has been completed by UK’s Royston Marine. The work saw engineers from Royston carry out a major overhaul of the port and starboard Cummins QSK60 MCRS main engines on-board the 55 m length, as part of a scheduled maintenance programme of critical power systems while the vessel was alongside in the Port of Sunderland. This involved the removal of fuel injectors, turbochargers, cylinder heads, powerpack assemblies and camshafts. The engine was rebuilt utilising service exchange components, new bearings, seals and gaskets
Volume 20 Issue 2 – Page 77
