OPERATION
21
Operator’s Manual Marine Diesel Engines
Revision 0. 05/2016
All engines not in use are subject to rusting and corrosion of machined surfaces that are
not protected with a paint coating. The degree of corrosion depends on meteorological
changes and climatic conditions. The following recommendations are therefore of a general
nature but they will help prevent or reduce the risk of damage due to rusting
.
5.5. Winterzation and Preservation
If the boat is not going to be used for a long period of time or during the winter, certain
tasks must be carried out to keep it in perfect operating condition. Follow the steps indicated
below carefully:
1.
Clean the outer surface of the engine.
2.
Bleed the seawater circuit by filling it with fresh water. Fill the seawater circuit again
with a mixture of fresh water and anti-freezing agent.
3.
Remove the impeller from the seawater pump, clean it with fresh water and store it in
place protected from moisture and sunlight.
4.
Renew and refill the heat exchanger to the maximum level with a mixture of fresh
water and anti-freezing agent.
5.
Renew the oil in the engine.
6.
Cover the air intake.
7.
If the fuel tank is small, empty it completely and clean it; fill it up again with a mixture
of diesel and anti-corrosion additive. Solé S.A. recommends DIECYL PLUS. Add one
measure of this additive for every 25 liters of diesel. On the other hand, if the fuel tank
is large, add 1 liter of this additive for every 500 liters of diesel.
8.
Clean and dry the area where the engine is installed.
9.
Loosen the belts.
10.
Apply dielectric spray on the electrical connection, disassemble the battery and
charge it several times during the time it is not being used.
11.
Apply moisture repellent spray on the motor.
5.6. Restoration of Operational Conditions
When starting up the engine again after winter lay-up, certain operations must be
performed. Follow these steps:
1.
Fill the fuel tank with clean diesel. The mixture of diesel oil and anti-corrosion additive
in tank for winter lay-up can be used to operate the engine.
2.
Check the fuel filter. If the filter is clogged, replace the filter.
3.
Renew the oil in the engine.
4.
Check the condition of coolant circuit’s rubber hoses.
5.
Reconnect the battery and apply a layer of neutral Vaseline to the battery terminals.
6.
Remove the nozzle supports and clean them. If possible, verify the setting of the
nozzles at a workshop. Then install the clean nozzles.
7.
Connect the cooling and exhaust system. Open the seawater cock.
8.
Verify whether there are any leaks in the fuel, coolant and oil systems.
