7LW32E

Marine diesel engines of this class are often found powering medium to large vessels, providing reliable and efficient propulsion. The 7LW32E, with its robust design, is a prime example of Wärtsilä's commitment to high-performance marine power solutions. This engine delivers an impressive 2450 kW at 750 RPM, making it suitable for a wide range of applications from cargo ships to offshore support vessels. The 7LW32E features a bore of 320 mm and a stroke of 400 mm, with seven cylinders arranged in an inline configuration. It is designed to run on heavy fuel oil (HFO), light fuel oil (LFO), and marine diesel oil (MDO), ensuring versatility in fuel options. The engine’s specific power output of 580 kW per cylinder at 750 RPM underscores its efficiency, while the turbocharged, intercooled design with direct fuel injection ensures optimal performance. The cooling system utilizes both seawater and freshwater, along with charge air cooling via a cooler, to maintain stable operating temperatures. Common maintenance issues include potential stickiness of the injection pump fuel rack during HFO operation, exhaust valve seat wear due to high temperatures, and camshaft gear backlash. These areas require regular inspection and monitoring to ensure the 7LW32E operates at peak efficiency throughout its service life.