85
Inhibiting
WARNING! Observe the following when clean-
ing with high-pressure water jets. Never point
the water jet at seals, rubber hoses or electrical
components. Never use high pressure jets
when washing the engine.
Boat unused for up to two months
If the boat is not expected to be used for up to two
months, it is sufficient to start the engine and warm it
up once a fortnight.
If there is a danger of freezing, the cooling system’s
seawater circuit should be drained after stopping.
Check/top up the freshwater system’s antifreeze to
prevent damage. Drain the freshwater tank if in-
stalled.
Remove the drain plug (if fitted) on the exhaust pipe
condensed water collector. Drain the water from any
low-lying parts on the exhaust pipe.
Check the batteries’ charge condition. A discharged
battery may easily burst.
Boat unused for more than two months
1. Warm the engine up to normal operating temper-
ature.
2. Check that the lubricating oil level in the reverse
gear reaches the upper mark (“FULL”) on the
dipstick. Check the level with the engine idling
and the control in neutral.
3. Stop the engine and drain or pump the lubricat-
ing oil from the oil sump.
4. Boat unused for up to max. 8 months: Re-
place the lubricating oil filter and fill with Volvo
Penta lubricating oil to the normal level. Warm
the engine up after changing the oil.
5. Boat unused for more than 8 months: Fill the
engine with inhibiting oil to just above the lower
part of the mark on the dipstick. The oil compa-
nies sell inhibiting oil.
Connect the fuel lines (suction and return) to a
can filled with 1/3 inhibiting oil and 2/3 diesel.
Some oil companies sell a ready-mixed oil for
this purpose.
Vent the fuel system according to the instruc-
tions on page 50. Start the engine and run on
fast idle until approx. 2 liters (0.4 Imp. gals/0.5
US gals) have been used from the can.
Stop the engine and drain or pump the lubricat-
ing oil from the oil sump. Connect the regular
fuel lines.
6. Check that the coolant in the freshwater system
has sufficient anti-freeze and top up if required.
Or drain the coolant. Close the sea cock and
drain the water from the seawater system. See
pages 28–29.
Remove the seawater pump impeller.
7. Check that the batteries are well charged. A dis-
charged battery can burst if it freezes.
Batteries always have a certain amount of self-
discharge which increases the higher the tem-
perature. Batteries in storage should therefore
be kept as cool as possible. They should be
stored dry and clean and normally charged when
the electrolyte density drops below 1.24 g/cm
3
(1.20 g/cm
3
for batteries with tropical acid).
You should preferably remove the batteries and
hand them in for maintenance charging as in-
structed by the manufacturer.
See also point 2 under “Electrical System –
Important” on page 65.
8. When necessary, improve the external rust pro-
tection by brushing on anti-corrosion oil. The sur-
faces should be clean and dry before being treat-
ed.
NOTE! Certain engine conservation oils are in-
flammable. Some of them are also dangerous if
breathed in. Ensure good ventilation in the work
place. Use a protective mask when spraying.
9. Stick a label on the engine stating the date of in-
hibition, type of inhibition and the inhibiting oil
used.
10. Cover the engine’s air intake, exhaust port and
the engine itself if so required.
Launching procedures
Check the condition of the propeller(s). Damaged
propellers should be reconditioned or replaced.
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