40HP (29.4KW) @ 3600RPM. Series of exceptionally light and compactengines, very high reliability, high performance and low fuel consumption in every condition.
Lombardini FOCS series are four stroke diesel engines cooled by fresh water via a heat exchanger with zinc anode protection. The original design concept of the pearlitic grey cast- iron cylinder head with integral re borable “twin” arranged liners, with cross flow intake and exhaust, has allowed the reduction of the engine length, assuring at the same time an exceptional sturdiness. The LDW 502M, which has been built with an aluminium engine block and reborable liners, is the most popular engine in its class. Excellent results have been obtained in reducing noise emissions thanks to the location of the injection system in the cylinder head, a ribbing system along the engine structure, and the complete absence of gears. The overhead camshaft is driven through a cogged belt, especially designed for heavy duty applications to ensure longevity of belt life. The lubrication system is fed by a “generator” oil pump driven directly by the crankshaft. Utilisation of newly developed and “Lombardini patented” unit type injector pumps, in place of a conventional rotary type injection system and incorporating separate injection pumps and injectors, allows the elimination of fuel pipes, and consequently provides a better injection timing and pressure, resulting in greater efficiency and increased performance advantages. The “Lombardini patented” injection system has been tested for low exhaust emission levels and FOCS engines achieved high acclaim with regard to exhaust emissions being well below the EEC requirements. The very accurate balancing of the moving components together with optimum combustion allows for low vibration levels at all engine speeds.