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Chapter 4
Typical Exhaust System
The diesel generator exhaust system features a dual tier
operation. As the water and exhaust exit the generator they
travel to the muffl er. The muffl er discharges the heavier
water out the muffl er bottom and through the hull. The
exhaust itself is exited out the muffl er top and through
the hull. The benefi ts of the system are two-fold. First,
the actual decibel or sound level is decreased. In addition,
the lower resonating sound is more pleasing to the ear. For
colder climates, a drain plug is installed in the muffl er.
Before departure always check the hose connections
for signs of water and air leaks. Tighten hose clamps as
needed.
GEN-SET
OUTLET
TYPICAL GENERATOR MUFFLER
EXHAUST
DISCHARGE
WATER
DISCHARGE
PORT
TRANSOM
Turn generator seacock off. Check strainer for debris.
Turn generator seacock on before starting generator.
Ensure that all main panel and equipment breakers
are off.
Inspect the generator for fuel, oil, exhaust or water
leaks.
Check generator engine oil level. Top off with correct
viscosity as required.
Check coolant for proper level at recovery tank. Add
as needed.
Check the main fuel tank to ensure there is adequate
diesel for both the generator and the engines. Apply the
one-third rule.
Check for loose wires at the alternator.
Check the port side cranking battery (weekly).
Check drive belts for wear and proper tension
(weekly).
Record the hour meter reading to meet maintenance
scheduling.
Before Starting Generator
The following items should be checked each time before
starting the generator. This covers the basic system
components.
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