Regal 2000 ES, Owner'S Manual

Page: 83 / 352

Engine & Controls
Coolant Hoses
Before each trip, the coolant system should be checked for leaks.
Aft er locating the pump housing, check the hose feeds for leaks,
particularly around the hose clamps. Inspect the hoses for signs of
melting or cracks, and replace as necessary.
Th ermostat
If the temperature gauge starts yielding abnormal readings, it may
become necessary to look at or replace the engine thermostat aft er
determining whether it is functioning properly. Th
e 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. Th
e 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. To inspect the thermostat, locate the thermostat housing,
remove the housing, thermostat, o-ring, and gasket. Inspect these
components for damage, and replace as necessary. Clean the intake
manifold and thermostat housing at the location of the gasket to
ensure a tight fi t before replacing components.
3-5
AVOID OPENING THE FILLER CAP FOR THE COOLANT SYSTEM
OR DISCONNECTING THE COOLANT SYSTEM HOSES WHILE THE
ENGINE IS STILL ON / HOT. UPON LOSS OF SYSTEM PRESSURE,
STEAM OR HOT COOLANT CAN SPRAY OUT OF THE SYSTEM
CAUSING BURNS.