MAINTENANCE
22 July 2009 / WHISPER 6/8/11 / US / Copyright © 2009 Mastervolt
A smeer of oil has to be put on the seal of the filter before
fitting the filter. The filter should be fastened manually:
when the rubber touches the metal turn 3/4 further.
Figure 12
4.2.6 Readjustment of the V-belt
The alternator bracket allows for readjust of the V-belt.
Deflections should be 10 mm (refer to fig. 13)
Figure 13
4.3 REGULAR MAINTENANCE
CHECK DAILY:
• Oil level (see fig. 14)
Take care the oil level is never
below the mark. Do not oil
when the level is still above
the mark
1 Minimum oil level
2 Maximum oil level
Fig. 14:
CHECK DAILY:
• Level cooling liquid
• Hoses for loose connections or deterioration.
• Water inlet filter.
AFTER FIRST 50 HOURS:
• Change oil and replace the oil filter.
Have the engine run until it is on temperature and
stop it. Drain oil by the sump pump into a suitable
retainer and fill up with fresh oil. Start the engine
again and have it run for 5 minutes. Stop the
engine again and pause for a few minutes to let
the oil gather in the crankcase. Check the level
again and add oil when necessary.
• Check and tighten nuts, bolts, and unions, paying
particular attention to the fuel system.
• Observe the exhaust at the normal full load. The
exhaust must be free from soot. Do not allow the
engine to run with a dirty exhaust without
investigating the cause as this may result in an
expensive breakdown.
• Check air vent on a regular basis. When the air
vent it not working properly the engine can fill up
with water by siphoning. Water in the combustion
chamber causes serious damage to the engine.
• Check and readjust V-belt.
• Check the electrical connections
EVERY 150 HOURS:
• Change oil.
• Check the battery acid level (not applicable when
Mastervolt batteries are used).
• Check battery terminals for corrosion
• Check and readjust V-belt
• Check impeller raw water pump (durability
depends on the purity of the sea water. In sandy
water and warm water wear will increase).
10 mm
1
2