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Superseded 2.50HE

Ph: 02 9319 5222

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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