The Powerful Gem - kp44.org

1 Configuration4-stroke, vertical, water cooled diesel engineMaximum output at crankshaft* 55 kW (75 hp) / 3800 rpm** kW (73 hp) / 3800 rpmContinuous rating output at crankshaft 51 kW (69 hp) / 3700 L (122 cu in)Bore x stroke84 mm x 90 mm ( in x in)Cylinders4 Combustion systemDirect injectionAspirationTurbochargedStarting systemElectric starting 12 V - kWAlternator12 V - 60 A (80 A optional)Cooling systemFresh water cooling by centrifugal fresh water pump and rubber impeller sea water pumpLubrication systemEnclosed, forced lubricating systemDirection of rotation(crankshaft)Counter clockwise viewed from sternDry weight without gear219 kg (483 lbs)EnvironmentalBSO II, SAV, EMC compliant and will meet the 2003/44/EC emission requirementsto be effective from 2006 Engine mountingRubber type flexible mountingNOTE: Fuel condition: Density at 15 C = g/cm3; 1 hp = kW * Fuel temperature 25 C at the inlet of the fuel injection pump (ISO 3046-1) ** Fuel temperature 40 C at the inlet of the fuel injection pump (ISO 8665)Dimensions (For detailed line-drawings, please refer to our web-site: )Yanmar type side mm( in)490 mm ( in)265 mm ( in) mm ( in)max.

2 110 mm ( in)min. 100 mm ( in) mm( in)560 mm (22 in) mm( in) mm ( in)Mixing elbowo 76 mm ( in)4JH3-TE w/ KM4A marine mm (35 in)Rear viewThe Powerful mm (25 in)Performance Curves (Output is according ISO 8665 - Output includes +/- 3% tolerance)010203040501800 2000 2200 2400 2600 2800300032003400360038004000010203040506 070800204060801001201401601802001800200 0 2200240026002800300 0320034003600380040000204060801001201400 2468101214161820180020002200240026002800 3000320034003600380040000123450102030405 01800 2000 2200 2400 2600 2800300032003400360038004000010203040506 070800204060801001201401601802001800200 0 2200240026002800300032003400360038004000 0204060801001201400246810121416182018002 0002200240026002800300032003400360038004 000012345010203040501800 2000 2200 2400 2600 2800300032003400360038004000010203040506 070800204060801001201401601802001800200 0 2200240026002800300032003400360038004000 0204060801001201400246810121416182018002 0002200240026002800300032003400360038004 000012345 Maximum output at crankshaft PowerTorqueMaximum output at prop shaft Propeller power

3 CurveFuel ConsumptionInstrument PanelsType of instrument panelFunctionDigital B-type PanelDigital C-type Panel1 Switch unit1-1 Key switch for GLOW/OFF/ON/START (4-position switch)OO1-2 Push button switch for engine stopOO1-3 Moisture cap for key switchOO2 Alarm lamp unit2-1 Battery low charge alarmOO2-2 Coolant high temperature alarmOO2-3 Lubricating oil low pressureOO2-4 Water in sail drive seal alarmOO2-5 Water in fuel filter alarmXO2-6 Sea water insufficient flow alarmXO3 Meters3-1 Lubricating oil pressure meterXO3-2 Coolant temperature meterXO3-3 Hour meterOO3-4 TachometerOO4 Audible alarm buzzerOONote: O = Equipped on panel X = Not equipped on panelStandard Package Set of flexible mounting Exhaust/water mixing elbow (L-type) Expansion tank for fresh water cooling system Alternator 12 V - 60 A Electric stop solenoidOptional Additional Digital B-type instrument panel Additional Digital C-type instrument panel Analog (B-type, C-type, New B-type, and New C-type) instrument panels Exhaust/water mixing elbow, U-type (high riser) Various extension wire harnesses Various couplings (straights, tapers, slits)Accessories 1-11-33-43-32-22-32-42-1 DigitalB-typePanelOutput (crankshaft/propeller shaft) kWOutput (crankshaft/propeller shaft) hpCrankshaft Torque NmCrankshaft Torque lb-ftFuel Consumption L/hrFuel Consumption Speed min-1 Crankshaft Speed min-1 Crankshaft Speed min-1 Texts and illustrations are not binding.

4 Yanmar Marine reserves the right to introduce adaptations without prior Gears/DriveModelZF30 MKM4A1(down angle: 7)KMH4A1 (down angle: 8)ZF25 ASaildrive (SD50-T)TypeMechanical MultiMechanical cone clutchHydraulic clutchHydraulic clutchMechanical cone clutchPlate clutchDry weight28 kg (61 lbs)28 kg (62 lbs)31 kg (68 lbs)30 kg (66 lbs)42 kg (93 lbs)Reduction ratio ( speed(fwd/asn)1722/14041372/14042523/252 3 1731/1731 1408/1408 1122/11221814/18141507/1507 1917/19171492/14921595/1595 Direction of rotationClockwiseClockwise & counter clockwiseClockwise & counterClockwise & counterClockwise & counter clockwise(propeller shaft - fwd)viewed from sternviewed from sternclockwise viewed from sternclockwise viewed from sternviewed from sternDry weight engine247 kg (545 lbs)249 kg (549 lbs)250 kg (551 lbs)249 kg (549 lbs)261 kg (475 lbs)and gear/driveLength engine933 mm (37 in)888 mm (35 in)886 mm (35 in)1001 mm (39 in)1086 mm (43 in)and gear/driv)