72
2. Engine starts but stops again/
runs unevenly
CAUSE
● Air in fuel system
● Fuel starvation or no fuel
– fuel cocks closed
– fuel tank empty/wrong tank on line
– fuel filters clogged (due to contaminants/paraffin
precipitation in the fuel as a result of low outside
temp.)
● Insufficient air flow to engine
– air cleaner filter clogged
● Break in pressure line
REMEDY
Vent the fuel system as shown on page 51
Open the fuel cocks
Fill with fuel/connect the correct fuel tank
Fit new fuel filters (pre-filter and/or fine filters). Vent the
system as shown on page 51
Fit a new air cleaner filter/clean air cleaner filter, check
ventilation to engine compartment
Install new pressure line(s)
4. Engine Coolant Temperature
(ECT) too low
CAUSE
● Defective thermostats
REMEDY
Install new thermostats
3. Engine Coolant Temperature
(ECT) too high
CAUSE
● Coolant level in engine too low (air in system)
● Defective thermostats
● Seawater pump (pump impeller) defective
● Sea cock closed
● Seawater intake blocked
● Seawater filter blocked
● Heat exchanger core clogged
● Circulation pump malfunction
REMEDY
Fill engine with coolant and vent system as shown on
page 55
Install new thermostats
Replace the seawater pump impeller as shown on page
57
Open the boat’s sea cock
Clean the seawater intake
Clean the seawater filter as shown on page 55
Clean the insert as shown on page 56
Contact authorized service personnel
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