Superseded 2.50HE
Part Numbers
Part Description | Part Numbers |
Oil Filter | 302697 |
Fuel Filter | 622350 |
Impeller | 434013 |
Gasket, Impeller | 504028 |
Seal, W/Pump | 434031 |
V Belt | 307133 |
O-Ring, Heat Exchanger | KSAV03 |
Anode, Engine | 494635 |
Anode, Selva Sail Drive (<2003) | 310045 |
Periodic Maintenance
| CHECK | EVERY DAY | AT 20 HRS | 100 HRS | 200 HRS OR EVERY YEAR | 400 HRS OR EVERY 2 YRS |
Oil Levels (Engine & Gearbox) | x | ||||
Battery Charge (indicator) | x | ||||
Water Temperature & Operation | x | ||||
General Sealing | x | ||||
Battery Electrolyte level | x | ||||
Operation of the Controls | x | ||||
Belt Tension | x | x | |||
Valve Adjustment | x | x | |||
Starter & Alternator Mountings | x | ||||
Tightness of Screws and Assemblies | x | x | |||
Sea Water Pump | x | ||||
Engine Mounts and Alignment | x | ||||
Injector Calibration | x | ||||
Sea Water Strainer | x | ||||
Thermostat (to be cleaned) | x | ||||
Coolant level in Heat Exchanger | x | ||||
Zinc Anode | x | ||||
Air Filter | x | ||||
CLEAN | |||||
Heat Exchanger Tube Stack | x | ||||
REPLACE | |||||
Oil Filter | x | x | |||
Fuel Filter | x | ||||
Oil (Engine & Gearbox) | x | x | |||
Coolant | x | x | |||
Primary Fuel Filter | x | ||||
O-Rings, Heat Exchanger | x | x | |||
Impeller | x | ||||
V Belt | x |
Technical Data
ENGINE SPECIFICATION
Number of cylinders : 2
Displacement : 479 cc
Bore - Stroke : 67 X 68 mm
Compression ratio : 23/1
Max. pressure difference between cyl. : mini 23b
Compression pressure : 29 to 33 b
Maximum speed without load : 3800
Maximum RPM in load : 3600
Idle RPM in forward gear : 1050
Max. torque :
Firing order : 1 - 2
Rotation : Anti clockwise
INJECTION
Type of injector : BOSCH JET
Fuel injection pressure : BOSCH MD MINI
Injection pump manufacturer : 140 b
Injection timing : 20 to 22° before top dead
center
TIGHTENING TORQUE
Arm head cover cap nuts : 0.4 to 0.6 kg
Cylinder head bolts : 4 to 4.5 MK
Flywheel bolts : 5.5 to 6 kg
Connecting rod bolts : 2.7 to 3.1 kg
Rocker arm bracket nuts : 1 to 1.15
Main bearing caps bolts M6 : 1.3 to 1.6
Main bearing caps bolts M7 : 2.7 to 3.1
Nozzle holder assembly : 5 to 7
Glow plugs : 0.8 to 1.5
LUBRIFICATION
Oil pressure at idle RPM : 1 bar
Oil pressure at maximum load : 2b to 4.5b
Recommended oil : API CD 15W40
Oil pan capacity
- mini :
- maxi : 2.1 l
Gearbox model : HBW
Oil capacity : 0.3l
Recommended oil : ATF
COOLING SYSTEM
Capacity : 2.7 liters
DIAGRAMS
Valve clearance (cold)
Inlet : 0.15
Exhaust : 0.15
Valve recessing : 0.30
PISTON RINGS
Piston ring gap :
Piston top compression : 0.15 to 0.30
Intermediate : 0.30 to 0.45
Oil control : 0.30 to 0.45
CYLINDER HEAD
Cylinder head surface flatness : < 0.05mm
SEA WATER PUMP
Water flow :
GLOW PLUGS
Resistance : 0.90 ohm
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