Long-Term Storage; Prepare Engine For Long-Term Storage - Yanmar 6SY Series Operation Manual

LONG-TERM STORAGE

If the engine is not to be used for an
extended period of time, special measures
should be taken to protect the coolant
system, fuel system and combustion
chamber from corrosion and the exterior
from rusting.
The engine can normally stand idle for up to
six months. If it remains unused for longer
than this, please contact your authorized
Yanmar marine dealer or distributor.
6SY Operation Manual
PREPARE ENGINE FOR
LONG-TERM STORAGE
Note: If the engine is close to a periodic
maintenance interval, perform those
maintenance procedures before putting the
engine into long-term storage.
1. Wipe off any dust or oil from the outside
of engine.
2. Drain water from fuel filters.
3. Drain fuel tank completely or fill the tank
to prevent condensation. To reduce the
risk of condensation in the fuel tank
during winter storage, fill the tank with
fuel and treat with diesel fuel stabilizer.
4. Grease the exposed areas and joints of
the remote control cables and the
bearings of the remote control handle.
5. Seal the air intake, exhaust pipe, etc. to
prevent moisture or contamination from
entering engine.
6. Completely drain bilge in hull bottom.
7. Waterproof the engine room to prevent
rain or seawater from entering.
8. Charge the battery once a month to
compensate for battery's self-
discharge.
9. Remove key from key switch and cover
the key switch with moisture cap.
NOTICE: If seawater is left inside of the
engine, it may freeze and damage parts of
the cooling system when the ambient
temperature is below 0˚C (32˚F).
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