Long-Term Storage; Prepare Engine For Long-Term Storage - Yanmar 4JH45 Operation Manual

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 consult your authorized
Yanmar Marine dealer or distributor.
Before performing any storage procedures
within this section, review the Safety
section on page 3.
In cold temperatures or before long-term
storage, be sure to drain the seawater
from the cooling system.
• Do not drain the coolant system. A full
coolant system will prevent corrosion
and frost damage.
• 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).
JH Series 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.
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. Make sure the power switch is off.
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