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AIR INTAKE FILTER
These engines are fitted with an air intake filter which should be checked every season and changed every 2 years or
sooner if badly clogged. If badly clogged, check more often.
1
MAINTENANCE - ELECTRICAL
WARNING
Under no circumstances should the
battery be disconnected or switched
off when the engine is running. This
will seriously damage the alternator
PANELS AND WIRING
See installation notes, page 31.
WINTERISING AND LAYING UP
HEAT EXCHANGER COOLED
ENGINES LEFT AFLOAT AND
ASHORE
(a) The engine oil and oil filter
should be changed at the end of
the season rather than in the
spring. See section 2.
(b) The closed circuit system should
contain a 50/50 solution of anti-
freeze (this also applies to warm
and tropical climates).
(c) For cold climates where the air or
water temperatures can fall
below 3°C, the sea water circuit
must be protected in addition to
the fresh water system. This is
best achieved as follows:
LAYING UP ASHORE
(a) Change the engine oil before the
boat is taken out of the water.
2
GENERAL MAINTENANCE
(1) The panel must be protected from
rain and sea water, see instal-
lation. Sea water entering the key
switch will eventually cause
corrosion and could result in the
starter motor being permanently
energised and burning out. Spray
key switch every month with WD
40 or equivalent.
(i) Close the inlet seacock to the
engine (engine stopped).
(ii) Disconnect the sea water
inlet pipe and dip it into a small
bucket containing 50/50 anti-
freeze solution.
(iii) Start the engine (out of gear)
and run for 5 to 10 seconds until
the anti-freeze is used up and
can be seen coming out of the
exhaust outlet.
(iv) Shut engine off and
reconnect the inlet pipe to the
seacock.
The sea water or raw water
circuit is now protected by anti-
freeze.
Warm engine oil is much easier
to pump than cold!
3
(2) Check batteries for acid level and
top up if required. For low
maintenance and 'gel' batteries
see manufacturers instructions.
(3) Loose spade terminal
connections are the most
common cause for electrical
faults - check on a regular bases
(see maintenance instructions).
(d) Ensure instrument panel is well
protected and give the key switch
a spray of WD 40 or equivalent.
(e) With the engine stopped,
disconnect the battery (always
disconnect the negative cable first
and re-connect the negative
cable last) and take it ashore for
trickle charging and top up as
necessary. If AC power is
available then this can be done
on the boat.
(f) Fuel tanks should be kept full
during the lay up period to
eliminate water condensation in
the tank. Water entering the fuel
injection system can cause
considerable damage.
(b) to (f) should be followed as
above.
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