![]() ![]() Upon turning the key and pressing the starting motor switch, the oil pressure alarm will ring for about a second until the engine starts to run. The engine is typically activated by a key and a starting motor switch. 12V, 1 kW), and an alternator to provide electricity and charge onboard batteries (12 V, 55 A). The engine is equipped with a starting motor (D.C. ![]() The maximum output at the crankshaft is 13.4 kW, at 3600 rpm. The continuous rating output at the crankshaft is 11.8 kW, at 3400 revolutions per minute (rpm). The compression system uses a proprietary swirl-type pre- combustion chamber. It is built around two cylinders (hence the "2" in 2GM20) of 75 mm in diameter and 72 mm in stroke, adding up to 0.635 litres in displacement: each cylinder is roughly the size and volume of a 300 ml soft-drink can. It is a four-stroke, vertical, water-cooled diesel engine. The 2GM20 is out of production and has been superseded by the newer Yanmar 3YM20 series. It is used in a wide range of sailboats and motorboats. ![]() The Yanmar 2GM20 is a series of inboard marine diesel engine manufactured by the Japanese company Yanmar Co. ![]()
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