CHAPTER 3
PROPULSION SYSTEM
15
COOLANT TEMPERATURE – Normally between 167 and 194 degrees F. 36z #4 runs at about
181 degrees at 25 knots
OIL TEMPERATURE – This should be less than 220 degrees F, or 105 degrees Celsius.
CHARGING – Normally about 14 Volts when underway.
Depending on hull structure and engine installation, engine and hull resonance may be greater at
some speeds than others. This is normal and you will learn to pick the sweet spots. If you hear
any abnormal sounds, stop the engine and inspect.
If any warning lights or buzzers activate, stop the engine immediately.
Determine the cause and repair the problem before continuing to operate.