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1000 bhp - 1900 rpm
CHARACTERISTICS
Diesel engine, 4 stroke, direct injection, turbocharged with charged intercooling.
TECHNICAL DESCRIPTION
Cast iron cylinder block, highly ribbed, with strengthened seating face
Main bearing caps fully imbedded with vertical and horizontal attachments
One inspection door per cylinder enabling an easy access to the connecting rod fixations
Cast iron liners, wet type, extremely rigid
Separate cylinder heads with large water circulation
sections ensuring a maximised cooling mainly for the nozzle holder copper housing
Attachment of each cylinder head in eight points by high strength bolts with spherical seating washers under the bolts located between two cylinder heads
4 valves per cylinder head, with special steel thick head, with built up guides and seats, and rotators on exhaust valves
Special forged hardened steel crankshaft, with induction hardened journals, crankpins and connecting radius
Camshaft with polynomial profiled cams
Distribution system with tempered, hardened and surface corrected helicoïdal type gears
Chrome - molibdenum steel connecting rods
Light alloy pistons cooled by continuous oil jet from fixed nozzlesensuring also the lubrication ofconnecting rod footshells
High performance piston rings
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Yanmar engines just last and last. Superior technology results in state-of-the-art propulsion systems you can rely on. For example, the qualily of the diesel fuel is optimised by superb tillering, including a centrifugal oil cleaner and large oil filter. The 6/8 cylinder heads separately are light enough to be lifted by one person, yet extremely strong. Day to day checks can be carried out via ergonomic access points (front mounted), like the oil dipstick, oil filler, fuel filter, cooling water filling and oil filling.
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The 8SY-STP features individual cylinder heads that offer substantial weight savings and are light enough to be lifted and reinserted by one person. Together with a modular design for fewer maintenance operations, electronic diagnostics and easily accessible service points make routine engine care simple and economical.The more power, less weight design allows for maximized torque at low revs, improved fuel economy and reduced emissions.
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