Regal LS4C Owner's Manual page 83

Thermostat
If the temperature gauge starts yielding abnormal
readings, it may become necessary to look at or
replace the thermostat after determining whether
it is functioning properly. The thermostat reads the
temperature of coolant and determines whether
to open or close a valve to allow warm sea water
to pass into the exhaust manifold. The thermostat
may recirculate hot coolant for the purposes
of reaching standard operating temperatures.
If standard operating temperatures have been
reached, the thermostat will open a valve and allow
hot raw water to exit through the exhaust manifold.
For more information read your engine manual or
contact the closest Regal dealer. Dealers have the
necessary knowledge and tools to troubleshoot
any engine related problems.
WARNING
PREVENT INJURY DUE TO HOT SURFACE!
AVOID TOUCHING THE THERMOSTAT
OR ITS COMPONENTS WHILE THE ENGINE
IS HOT.
CAUTION
TO PREVENT ENGINE DAMAGE DUE TO
OVERHEATING AVOID RUNNING THE
ENGINE WITHOUT A FUNCTIONING
THERMOSTAT.
CAUTION
AVOID ENGINE DAMAGE OR FAILURE!
DISCONTINUE ENGINE OPERATION
AFTER AN ALARM HAS SOUNDED.
ADDRESS MALFUNCTION BEFORE
RESTARTING ENGINE.
Engine Electrical System
Your engine utilizes a great deal of electronic
equipment. Some equipment sends signals
between the engine and the Garmin, while other
systems set off alarms, and still others are used
by the engine to generate a spark and ignite the
fuel. The battery switch controls electrical power
distribution to the boat systems.
To regularly maintain your DC electrical system,
inspect battery condition before each trip. Test all
gauges and control equipment prior to departure,
and replace as necessary. Spark plugs should be
replaced according to your engine owner's manual
maintenance schedule.
Gauge Electrical Signals
Your stern drive engine transmits signals through
electrical harnesses to different components
through the use of NMEA 2000 connections and
a "backbone system". A Garmin plotter displays
the engine functions. The fuel gauge and depth
sounder use stand alone technology to display
readings. Also, idiot lights are display tolerances
that are classified as being abnormal.
Alarms
If a malfunction with your engine occurs, the Garmin
plotter alerts the skipper of a problem. Common
engine problems include overheating, low oil
pressure, or a miscommunication with equipment.
Learn the alarm systems that apply to your engine
by consulting your engine owner's manual. Engine
manufacturer's feature their own engine display
screen which may display rpm, engine hours,
coolant temperatures and use alarms.
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