Main Engine 4-Stroke · Main Engines (4-Stroke)
This equipment category includes large marine diesel engines. The Wärtsilä 18VW34SG is a powerful main engine designed for modern maritime applications, featuring an 18-cylinder V-engine configuration with a bore of 340 mm and stroke of 400 mm. It operates on LNG as its primary fuel but can switch to other fuels like HFO or LFO in backup mode. With a rated power output of 7110 kW at 720 rpm, this engine is known for its robust design based on the proven W34DF platform since the mid-1990s and has been actively marketed as part of their gas-engine lineup since 2022. Common issues include turbocharger bearing failures, fuel injector carbon deposits, critical GVU functionality, cylinder liner scuffing due to insufficient lubrication, and load-sharing failures that can lead to abnormal shutdown sequences.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
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