Marine Power Solutions MP-321 Operation Manual Download

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Technical Data

Model

MP-321

Type

In-line, Water-cooled, 4-stroke

Combustion chamber

Swirl chamber

Type of cylinder liner

Dry

Number of cylinders

Bore(mm)

Stroke(mm)

78.4

Displacement(L)

1.123

Compression ratio

22:1

Firing order

1-2-3

Rated output/speed (kw/r/min)

15.5/3000

Max. torque/speed(N.m/r/min)

55.5/2100

Min. fuel consumption(g/kw.h)

280

Lube oil consumption(g/kw.h)

2.72

Smoke intensity (FSU)

4.5

Direction of rotation of crankshaft

Counter-clockwise (from flywheel end)

Lubrication system

Combination of pressure and splash

Cooling system

Forced water cooled

Starting system

Electric

Net weight(kg)

110

Summary of Contents for MP-321

Page 1: ...1 MP 321 Marine Diesel Engine Operation manual Overcourt School Lane MICKLEHAM Surrey RH5 6EW UK Email info marine power solutions com Tel 44 0 1202 618236 ...

Page 2: ...ng Diagrams IMPORTANT INFORMATION Stop the engine before opening the hatch to the engine compartment An engine which is in operation has rotating and moving parts which are dangerous to touch Bear in mind the risk of a fire All engine fuel is inflammable The cooling system is filled with liquid and it should be drained when there is risk of frost Note that in certain cases a suction action may occ...

Page 3: ...this book Read this book carefully before operating the engine Don t wait until a problem occurs 1 2 Safety Notice The following warning notes will alert you to possible bodily injury dangers and to important information on safe operation of equipment Observe them carefully Warning notes alone do not eliminate the dangers that they signal Personal close attention of equipment are major accident pr...

Page 4: ...s recommended to use soft water for engine cooling system such as rain water or city tap water or clean river water also it is necessary to add anti freeze to the soft water before filling into the engine when the engine operates in the cold weather Cooling water containing too much minerals will from water scale in an engine cooling system affecting the engine cooling efficiency and giving rise t...

Page 5: ...The OIL LEVELS are correct The COOLING WATER LEVEL in the expansion tank for the fresh water system is correct The proper NAUTICAL CHARTS are on board for the planed voyage There is enough FUEL on board for the planed voyage Make sure when filling your fuel tank that there is no open flame on board Ventilate the boat and run the engine room fan if fitted for 4 minutes before starting the engine Do...

Page 6: ...6 3 Engine Component Guide 1 AIR FILTER 2 FUEL FILTER 3 SOLENOID 4 OIL SUMP PUMP 5 SEA WATER PUMP 6 OIL FILLER 7 ALTERNATOR 8 OIL FILTER 9 START MOTOR 10 WATER FILLER ...

Page 7: ... 1 2 Check the fuel cock and bottom sea water cock are in open position Pump out any water in the boat with the bilge pump 4 1 3 Release the throttle control from the gear shift control as follows press the release button 1 in when the lever is in the neutral position and then move the lever slightly forwards Release the button The control lever will now operate the engine speed only ...

Page 8: ...lease the key when the engine has started When the engine is running the key should be in position 1 Before restarting the engine return the key to position OFF 4 1 8 Immediately after starting the engine check that the oil pressure lamp and water temperature lamp and that alarm is not sounding if the alarm is sounding stop the engine immediately and investigate the case 4 1 9 If the engine temper...

Page 9: ...he engine at maximum revolutions for long periods 4 1 11 Stop the engine by key switch at once if the alarm sounds and the signal lamps light up 4 1 12 When under sail the control lever should be in the neutral position if the propeller is a fixed propeller If the propeller is a folding propeller the control lever should be in the reverse position Start the engine and run it for 5 minutes every te...

Page 10: ... a few minutes with the control lever in the neutral position 4 2 2 Stop the engine by key switch when the engine is idling 4 2 3 Switch off the main switch IMPORTANT The main switch must never be switched off until the engine has stopped Close the fuel and cooling water cock during long intervals between using Before leaving the boat check that no leakages have occurred ...

Page 11: ...Unfasten the cover on the sea water pump Unfasten the hose on the reverse gear Remove the pipe Close the cocks and refasten the cover on the sea water pump before leaving the boat 5 Checks and Service 5 1 Check daily before starting 5 1 1 Check oil level Check the oil level every day before starting the engine to makes sure that it s within the dipstick marking for maximum and minimum levels and t...

Page 12: ...ick marking for maximum and minimum levels Fill up with oil when necessary but do not exceed the maximum level See Technical Data for type of oil to be used 5 2 2 Check the belt tension The V belt must be correctly tensioned in order to obtain full alternator output When it is properly tensioned it should be possible to push the belt down about 5 mm midway between the pulleys within your thumb To ...

Page 13: ...e filter on by hand until it is just touching the contact surface Tighten the filter another half turn Do not tighten it any further Start the engine let it idle and check that the oil pressure lamp goes out Check the oil level and that there are no leakage around the filter 5 4 2 Clean intake silencer The intake silencer should be cleaned each season Loosen the intake silencer wash in diesel oil ...

Page 14: ...laced Remove the impeller with a pair of adjustable pliers and fit a new Then refit the pump cover with a new seal Open the bottom cock again Warning Watch out for water leakage 5 4 5 Check the valve clearance Checking and adjusting the valve clearance should only be done by professional See Valve under Technical Data 5 4 6 Check starter and alternator Checking and maintenance work on the starter ...

Page 15: ... should be run warm at least once every 14 days If the boat is not to be used for over a month at a time long term inhibiting should be carried out 6 2 Long term inhibiting You should have the engine and its accessories checked by professional before carrying out long term inhibiting and see that any necessary repairs are carried out at this point 6 3 Inhibiting schedule with boat in water 6 3 1 A...

Page 16: ... been used up Note The pump must not be allowed to run dry 6 5 Launch the boat 6 5 1 If the propeller shaft is fitted with a rubber stuffing box press in grease before launching 6 5 2 The stuffing box should be vented after launching Warning The rubber stuffing box must be replaced after 500 hours or 5 years 7 Tracking faults 7 1 Engine doesn t start If the start motor does not turn over check whe...

Page 17: ...he cylinders Compression should be checked by professional 7 4 Engine over heats If the engine is overheating check to see if The impeller is defective The cooling water intake or jackets are blocked If yes dismantle and clear them 7 5 Engine does not attain full revolutions If the engine starts properly and runs smoothly but does not reach the same revolutions as previously this does not necessar...

Page 18: ...ession ratio 22 1 Firing order 1 2 3 Rated output speed kw r min 15 5 3000 Max torque speed N m r min 55 5 2100 Min fuel consumption g kw h 280 Lube oil consumption g kw h 2 72 Smoke intensity FSU 4 5 Direction of rotation of crankshaft Counter clockwise from flywheel end Lubrication system Combination of pressure and splash Cooling system Forced water cooled Starting system Electric Net weight kg...

Page 19: ...le speed kPa 50 Capacity of oil sump L 3 Cylinder head bolts N m 80 90 Main bearing cap bolts N m 50 60 Connecting rod bolts N m 50 55 Flywheel bolts N m 80 90 Pulley bolts N m 110 130 Main bearing seat bolts N m 60 70 Fuel injection Model Axis needle type Fuel injection pump Type Plunger type Plunger diameter mm 6 0 Lube oil pump Type Inner and outer rotors Cooling water pump Type Centrifugal typ...

Page 20: ...20 ...

Page 21: ...21 ...

Page 22: ...22 9 Electric Wiring Diagrams ...

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