BUKH D4 / 175-320 HP

Technical description

Engine block and head

• Cylinder block and head made of cast iron
• Combined ladder frame and balance shafts
• 4-valve technology with hydraulic lash adjusters
• Double overhead camshafts
• Oil-cooled pistions with two compressionrings and one oil scraper ring
• Integrated cylinder liners
• Replaceable valve seats
• Five-bearing crankshaft
• Rear-end transmission

Engine mounting

• Flexible engine mounting

Lubrication system

• Easily replaceable separate full-flow and by-pass oil filter

• Seawater cooled tubular oil cooler

• Oil level and oil temperature sensors
• Crankcase oil separator, maintenance free unit

Fuel system

• Common rail fuel injection system, 2000 bar
• Electronically controlled central processing system
• Fuel pressure sensor that indicates clogging in fuel filters

• Single fine filter with water separator and water in fuel alarm

Air inlet and exhaust system

• Air filter with replaceable insert
• Crankcase gases vented into the air inlet
• Exhaust elbow or exhaust riser
• Freshwater-cooled turbocharger
• Loss of sea water alarm

Cooling system

• Thermostatically regulated freshwater cooling

• Seawater tubular heat exchanger

• Coolant system prepared for hot water outlet

• Seawater impeller pump

• Engine mounted seawater strainer

Electrical system

• Marine alternator (12V/150A or 24V/80A)

• Autmatic fuses for engine, transmission and EVC

• Auxiliary stop button
• Power connections and fuses co-located in one connection box on engine

Instruments/control

• Complete instrumentation/display packages, including e-key
• Electronic shift and throttle avaliable
• Plug-in connections

Propulsion

• Shaft drive
• Water jet
• Stern drive