STEYR MARINE ENGINES

I MO256H45 I MO256K43

184 KW (250 HP)

6-CylinderThe state-of-the-art STEYR Marine Diesel Enginewith dual cooling circuit fulfilling the strengthenedfuture marine emission regulation. TRANSMISSION MO256K43 The STEYR Marine Engine MO256K43 was especially developed for Water Jet adaptation and surface drives. TECHNICAL DESCRIPTIONENGINE MONOBLOCK Our unique and robust MONOBLOCK design, engine marine block and cylinderhead made from high grade alloy cast iron, without limitation in cooling and unrivaled roundness of the cylinder gives exceptional life time for the liner. •Chrome-Molybdenum forged crankshaft, dynamically balanced•Pistons are cast from high silicon aluminum, with oil cooling channel in3-ring technology•Hardened valve-seats high performance NIMONIC valve material•Elastic coupling on flywheel, design matched depending on application ENGINE MOUNTING Adjustable front and rear silent blocks capable to take propeller thrust. LUBRICATION SYSTEM •Exchangeable oil filter cartridge•Oil scavenging through dipstick pipe•Closed crankcase breathing system FUEL SYSTEM •Integrated high pressure UNIT INJECTOR up to 2,000 bar with dual stagefuel-injection technology, operated by overhead camshaft and rocker arms.•Electric fuel pump (automatic bleeding capability)•Exchangeable fuel filter cartridge EXHAUST SYSTEM The STEYR Marine Engine 256 is designed for high performanceand continuous pleasure boat rating. The innovative fuel injection technology enables an excellent torque and speed range.The complete engine package is conceived especially for sterndrivesystems. Remarkable features of the STEYR Marine Engines arethe dynamic behaviour and immediate response as well as theimpressive acceleration.SERVICE LIFE Freshwater cooled exhaust manifold and seawater cooled exhaust elbow COOLING SYSTEM •Freshwater cooling system with thermostat control•Heat exchanger with integrated expansion tank system•Connection prepared for boiler/cabin heating system•Sea water pump with impeller, integrated and replaceable wear plates The STEYR Marine Engines are manufactured using high alloy materials to provide enduring longevity for all running components. Using corrosion resistant materials for the entire seawater system as a standard in the dualcircuit cooling system. Consequently designed solutions to meet the criteriaof marine environment guarantee the best corrosion protection for anyauxiliaries and electronic components in marine ambience. COMFORT The patented STEYR 2-stage UNIT INJECTOR fuel injection technologyprovides for a worldwide approved and smooth operation noise.Noise emission levels are over the most important operating range belowthe running noise of gasoline engines. The additional elastic separation ofthe Monoblock against the aluminum casted engine housing reduces the engine related vibration transmitted into the hull therefore the noise level on board is further reduced. Torque and speed range characteristic enable optimal matching to individual application while maintaining transmission, gear ratio and propeller dimensions. The big choice of matched accessories fulfills the highest level of quality andcomfort for you on board of your vessel. EXHAUST EMISSIONS The trend-setting UNIT INJECTOR system is most environmentally friendly. We can fulfill the BSO II regulations as well as the announced EPA – Tier 2 and suchlike emission regulations. TRANSMISSION MO256H45 STEYR Marine Engines allow the installation with different driving systemin your boat. Adaptation for Marine transmission with different output configuration (direct, horizontal down-angle 8 ° , V-drive 12 ° ), to choose fromas well as an intermediate housing for propeller shaft and kits for installation to MerCruiser Bravo I, Bravo II and Bravo III Stern-Drives.