OPERATING MANUAL FOR BUKH DV24ME ENGINES
009W0825-R02
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WINTER STORAGE OF THE ENGINE
1. Carry out the following whilst the boat is still in the water:
1. Run the engine until normal workingtemperature is reached.
2. Drain off engine and gear oil with the oil bilge pump.
3. Fill the engine and gearbox with preservative lubricating oil of a recognized make up to the upper mark on the dipstick.
4. Fill the fuel tank with fuel preservative oil in the rate of mixture prescribed by the oil manufacturer.
5. Start the engine and let it run for about 10 minutes to be sure that the fuel mixed with preservative oil has been flushed
through the fuel system of the engine.
6. Fill the fuel tank completely with fuel. Pay no special attention to the preservative oil previously added to the fuel as this
is consumed normally and properly when service is resumed in spring.
2. On land the following procedure has to be carried out:
1. Remove the engine cooling water drain plugs, drain off the sea water from the engine and refit plugs.
2. For direct sea water cooled engines: Remove the suction hose from the cooling water pump at the bottom cock and put
the hose into a bucket with freshwater containing preservative oil in the rate of mixture prescribed by the oil
manufacturer
3. The outlet hose for the cooling water which goes into the exhaust elbow may be removed and returned to the bucket
via a length of hose so that the freshwater is able to circulate.Start the engine and the freshwater containing
preservative oil will be flushed through the engine.
4. Stop the engine after 5 - 10 minutes and drain off the water. Ensure that after removing the drain plug (1 plug is placed
in the block, and 1 plug in the exhaust manifold) all the water is drained off. This is done by cleaning the drain holes
with a nail,a steel wire or the like, so that any remaining water may drain out. Remove the impeller from the cooling
water pump, which will allow water in pump and pipes to be drained off. Keep the impeller separately in a dry place
during the winter.
5. A: For freshwater-cooled engines:
6. Drain the freshwater from the engine by removing the plugs as indicated for seawater cooled engines.It is not
necessary to flush this system with freshwater containing preservative oil. If the engine is to be used in period of frost, it
must be protected against frost burst with a mixture of anti-freeze solution in the freshwater system - irrespective of the
protection to the freshwater system against the risk of frost - by removing the cover of the impeller pump and turning
the engine manually or with the starter motor.
7. Remove the battery and store it separately during the winther in a dry and frost-free place. Fill up and charge the
battery before storing.
8. Remove the air filter and turn the engine manually until each inlet valve opens alternately, during which about 1/2 cup
of preservative oil is injected into each piston head. Turn the engine backwards and forwards manually in order to
spread the preservative oil.
9. Insert a clean, oil moistened rag (not cotton waste) into the inlet manifold.
10. Insert another clean, oil moisted rag into the exhaustelbow aperture.
11. Treat electrical connections with grease free from acid. Fill the multiple plugs with grease from the wire side.
The engine is now preserved for winther storage and can be futher protected by covering of polythen sheeting, under
which a bucket of silicagel should be placed.
3. Preparation of engine before launching.
1. Remove the oil moisted rags from the inlet manifold and the aperture of the exhaust elbow.
2. Fit the cooling water pump impeller.
3. Fit cooling water drain plugs.
4. Drain the preservative lubricating oil from both engine and gearbox and fill up with fresh oil to the upper mark of the
dipstick.
5. Change the lubricating oil filter.
6. Make sure - before starting up - that the oil on the piston heads is drained off. This is checked by turning the engine
manually without operating the decompression lever.
7. Examine the stern tube stuffing box and fill up with stern tube oil.
8. Fit the battery after re-charging.
9. Lubricate all moveable parts with oil.
10. Check the anode.
11. Check that there is electrical contact at the sterntube at the internal connection to the gearbox.