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N40469 Chapter 6
Page 47
Engine preservation
Introduction
The recommendations indicated below are designed to prevent damage to the engine when it is withdrawn
from service for a prolonged period. Use these procedures if the engine is to be withdrawn from service. The
instructions for the use of POWERPART products are given on the outside of each container.
Procedure
1.
Completely clean the outside of the engine.
2. When a preservative fuel is to be used, drain the fuel system and fill it with the preservative fuel. POWERPART
Lay-Up 1 can be added to the normal fuel to change it to a preservative fuel. If preservative fuel is not used,
the system can be completely filled with normal fuel but the fuel must be drained and discarded at the end
of the storage period together with the fuel filter canister.
3. Operate the engine until it is warm. Then correct leakages of fuel, lubricating oil or air. Stop the engine and
drain the lubricating oil from the sump.
4. Renew the canister of the lubricating oil filter.
5. Fill the sump to the full mark with new and clean lubricating oil and add POWERPART Lay-up 2 to the oil to
protect the engine against corrosion. If POWERPART Lay-Up 2 is not available, use a correct preservative
fluid instead of the lubricating oil. If a preservative fluid is used, this must be drained and the lubricating oil
sump must be filled to the correct level with normal lubricating oil at the end of the storage period.
6. Drain the coolant circuit. In order to protect the cooling system against corrosion, fill it with an approved
antifreeze mixture because this gives protection against corrosion.
Caution:
If protection against frost is not necessary and a corrosion inhibitor is to be used, it is recommended
that you consult the Service Department, Wimborne Marine Power Centre.
7. Operate the engine for a short period in order to circulate the lubricating oil and the coolant in the engine.
8. Close the seacock and drain the auxiliary water cooling system.
Caution: The auxiliary water system cannot be drained completely. If the system is drained for engine
preservation purposes or for protection from frost, the system must be filled again with an approved antifreeze
mixture.
9. Remove the impeller from the auxiliary water pump and put the impeller in a dark place for storage. Before
the impeller is fitted at the end of the storage period, lubricate lightly the blades and each end of the
impeller and the inside of the pump with Spheerol SX2 grease or glycerine.
Caution: The auxiliary water pump must never run in a dry condition because this can damage the impeller
blades.
10. Spray POWERPART Lay-Up 2 into the induction manifold. Seal the manifold and breather outlet with
waterproof tape.
11. Remove the exhaust pipe. Spray POWERPART Lay-Up 2 into the exhaust manifold. Seal the manifold with
waterproof tape.
12.
Disconnect the battery. Then put the battery into safe storage in a fully charged condition. Before the
battery is put into storage, protect its terminals against corrosion. POWERPART Lay-Up 3 can be used on
the terminals.
13. Seal the vent pipe of the fuel tank or the fuel filler cap with waterproof tape.