Volvo Penta 5.7 Gil-B, Operator'S Manual

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54
Maintenance and Care
Ignition System
Spark Plugs
Always clean the area around the spark plugs before remov-
ing them. Remove spark plug and clean. Check the electrode
gap with a feeler gauge and adjust if necessary. Replace the
spark plug if the edges of the electrodes are rounded or if the
ceramic spark plug body is damaged. See chapter
Technical
Data for spark plug type and electrode gap.
WARNING!
The wrong type of spark plug can cause operating
problems and engine damage. Do not run the engine
if the ceramic spark plug body is damaged. Damaged
spark plugs can cause sparks and ignite fuel vapor in
the engine compartment.
Ignition Cables and Distributor Cap
Clean ignition cables and distributor cap. Check that the
cables are in good condition and that the distributor cap is not
cracked. Replace if damaged. Other distributor components
are maintenance free.
NOTE! The 8.1 liter engine has distributor-less ignition
system and does not use a distributor cap.
WARNING!
To minimize the risk of fire and explosion Volvo Penta
ignition components meet safety standards. The use
of components that do not meet safety standards
(automobile components for example) can cause a
fire or explosion on board.
If ignition cables are removed, ensure that they are rein-
stalled in the correct order. The figure shows the typical layout
for the ignition cables.
Electronic Engine Control
Your engine features an Electronic Engine Control (EEC)
system. This is a computer controlled air, fuel and ignition
system that requires very low maintenance. It has a memory
that stores diagnostic information in the form of service codes
to aid your Volvo Penta dealer when diagnosing performance
problems. Contact your Volvo Penta dealer if service is
required.
NOTE! The electronics in the EEC require protection from
false signals and interference. Never mount radio transmitter
antennas or sender cables near the EEC and never ground
any wiring to the engine.
Caution!
If electrical connections are reversed, or wires are
disconnected when the key switch is on or the engine
is running, sensitive electrical components may be
immediately damaged. Do not turn off the main
battery switch until the engine has stopped.
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