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55
Checking the Coolant
The coolant level should be checked regularly to ensure a constant circulation of coolant through
the WhisperGen. How often the coolant needs to be checked and replenished depends on the
size of the coolant header tank and the coolant circuit. In general, you should check the coolant
level at least once a month.
To check the coolant level:
1. Remove the coolant header tank cap. The WhisperGen coolant header tank is located outside
the WhisperGen and is typically mounted at a level above the WhisperGen.
2. Ensure that the coolant level is adequate. The coolant level must be higher than the outlet
point at all times.
3. Replenish coolant if necessary. Use a high-quality automotive glycol-based corrosion-
inhibited antifreeze that is designed for aluminium engines. Follow the dilution
recommendation of the manufacturer.
4. Replace the coolant header tank cap.
The cooling system of the WhisperGen is vital to its performance. If the
coolant level is not maintained correctly, damage may occur.
WTL0030
Minimum
Inadequate
Outlet
Coolant
(cold)
Coolant
Inlet
Outlet
Inlet
Ethylene glycol is harmful if swallowed or inhaled. Do not store it in
open or unlabelled containers. Wash your hands thoroughly after
handling it.
Using an incorrect type of coolant can cause serious corrosion in the
WhisperGen – use only the recommended coolant.
Ensure that the coolant is free of particulate contaminants. Foreign
particles in the coolant can obstruct coolant passages in the engine,
resulting in damage to the WhisperGen.
