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CHARACTERISTICS
Diesel engine, 4 stroke, direct injection, turbocharged, with charge air intercooling.
TECHNICAL DESCRIPTION
Cast iron cylinder block, highly ribbed
Built up cast iron liners, wet type, guided at mid height to reduce vibrations and improve cooling of upper part
Two cylinder heads (each one for 3 cylinders), in special cast iron, extremely rigid
Attachment of cylinder heads on cylinders block by high strength steel bolts
2 valves per cylinder with built up guides and seat
Special forged steel crankshaft, 7 bearings, with integrated counter weights and hardened journals and connecting radius
Camshaft side mounted in cylinder block
Distribution system with tempered special steel gears
Forged steel connecting rods, with oblique head cut and "viper head" shaped foot
Light alloy pistons
High performance piston rings (three rings of which superior one is in molybdenum)
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400 bhp - 2000 rpm
CHARACTERISTICS
Diesel engine, 4 stroke, direct injection, turbocharged, with charge air intercooling.
TECHNICAL DESCRIPTION
Cast iron cylinder block, highly ribbed
Main bearing caps semi imbedded with vertical attachment
Built up centrifugal cast iron liners, wet type
Separate cylinder heads with large water circulation sections
Attachment of each cylinder head in eight points by high strength bolts
2 valves per cylinder head, with built up guides and seats
Special forged hardened steel crankshaft, with integrated counterweights and hardened journals and connecting radius
Camshaft side mounted in cylinder block on 7 bearings
Distribution system with tempered special steel straigh teeth type gears
Chrome - molibdenum forged steel connecting rods with straigh head cut
Light alloy pistons cooled by continuous oil jet from fixed nozzles
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CHARACTERISTICS
Diesel engine, 4 stroke, direct injection, turbocharged, with charge air intercooling.
TECHNICAL DESCRIPTION
Cast iron cylinder block, highly ribbed
Built up cast iron liners, wet type, guided at mid height to reduce vibrations and improve cooling of upper part
Two cylinder heads (each one for 3 cylinders), in special cast iron, extremely rigid
Attachment of cylinder heads on cylinders block by high strength steel bolts
2 valves per cylinder with built up guides and seat
Special forged steel crankshaft, 7 bearings, with integrated counter weights and hardened journals and connecting radius
Camshaft side mounted in cylinder block
Distribution system with tempered special steel gears
Forged steel connecting rods, with oblique head cut and "viper head" shaped foot
Light alloy pistons
High performance piston rings (three rings of which superior one is in molybdenum)
Double circuit heat exchanger, with oversized tube type core
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from 100 to 450 bhp
between 1200 & 1800 rpm
CHARACTERISTICS
Diesel engine, 4 stroke, direct injection, turbocharged with charge air intercooling.
TECHNICAL DESCRIPTION
Cast iron cylinder block, highly ribbed, with strengthened seating face
Main bearing caps semi imbedded with vertical attachment
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
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480 bhp - 1800 rpm
CHARACTERISTICS
Diesel engine, 4 stroke, direct injection, naturally aspirated.
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
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Yanmar has been a leading diesel engine manufacturer since 1912, producing from fuel injection equipment to marine gear (for most diesel-driven machinery, on land and sea. Yanmar diesel engines are specially developed to serve marine applications, giving customers the most reliable propulsion systems available on the market.
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Yanmar's engines last and last. They are designed and built to do just that. Every detail is taken Into account. Take for instance the stainless steel exhaust/water mixing elbow: a guarantee for long life and corrosion resistance. This tough engine is built to perform. The turbocharger with wastegate and inlercooler improves acceleration on the higher output model even further. This is best-in-dass diesel power from Yanmar.
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Yanmar's engines lasl and last. They are designed and built to do just that. Every detail is taken into account. The 6LY2 has super hard ceramic push rod tappets which keep wear to a minimum. And the whole series has stainless steel exhaus/water mixing elbows' a guarantee for long life and corrosion resistance.
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At Yanmar, we make our engines easily accessible. A double oil dipstick on port and starboard side is standard. The 6LY3 also has replaceable dry cylinder liners, which means low cost engine overhauls. The buil-in fuel-priming pump also improves airbleeding and the oil filter with built-in oil drain reservoir on top makes it more easily accessible.
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The more compact the engine design; the broader its application possibilities. That's why Yanmar makes compact engines; our power-to-weight and size ratios are setting industry standards for others to follow.
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