Yanmar 3JH4E, Operation Manual

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LONG-TERM STORAGE
If the engine will not be used for an extended
period of time, special measures should be
taken to protect the cooling system, fuel
system and combustion chamber from
corrosion and the exterior from rusting.
The engine can normally stand idle for up to
6 months. If it remains unused for longer
than this, please contact your authorized
Yanmar marine dealer or distributor.
PREPARE ENGINE FOR
LONG-TERM STORAGE
NOTICE: Do not drain closed cooling
system for long-term storage. Antifreeze
must be used to avoid freezing and
damaging of components. Antifreeze will
prevent rusting during 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.
4. Grease the exposed areas and joints of
the remote control cables and the
bearings of the remote control handle.
5. Seal the intake silencer, 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.
JH4 Series Operation Manual 83