Thermostat; Raw Water Intake Strainer - Westerbeke 5.5 kw EDC 60 HZ Operator's Manual

THERMOSTAT
A thermostat, located near the manifold at the front of tlie
engine, controls the coolant temperature as the coolant
continuously flows through the closed cooling circuit When
the engine is first started, the closed thermostat prevents
coolant from flowing (some coolant is by-passed 1j:rrough a
hole in Ihe Ihermostat to prevent 1he exhaust manifold from
overheating). As Ihe engine wanns up, Ihe Ihermostat
gradually opens. The Ihermostat is accessible and can be
checked, cleaned, or replaced easily. Cany a spare Ihermostat
and gasket
Replacing the Thermostat
Remove the cap screws and disassemble the thermosta1
housing as shown. When installing the new thermosta1 and
gasket, apply a thin coat of sealant on both sides of the
gasket before pressing it into place. DO' not over-tighten 1he
cap screws.
Run the engine and check for nornrnl ternperatores and that
there are no leaks at the thermostat housing.
I-~''!'-''=.~~:~ PETCDCK
FOR PUSHING AIR FROM THE
COOLING SYSTEM
RAW WATER INTAKE STRAINER
NOTE:
Alw~s
install the strainer at or below the waterline so ,
the strainer will always be self-pliming.
A clean raw water intake strainer is a vital component of Ihe
engine's cooling system. Include a visual inspection of this
strainer when making your periodic engine check. The water
in Ihe glass should be clear.
Perform the fOllowingmamtenance after every 100 hours of
operation:
L Close the raw water seacock. '
2. Remove and clean Ihe strainer filter.
3. Clean Ihe glass.
4. Replace the washer if necessary.
5. Reassemble and install the strainer.
6. Open the seacock ..
7. Run the engine and check for leaks.
NOTE:
Also follow the above procedure after haviJ'g
TUn
hard
aground.
If the engine temperature gauge ever shows a bigher than
normal reading, Ihe cause may be
that
silt, leaves or grass
may have been caught up in the strainer, slowing the flow of
raw water through the cooling system.
GASKET PN#036956
USEHI-TACKSEAf.ANT
STI)A,INER
_-"'"liS'
THERMOSTAT
ASSEMBLY
~I~TER
INCOMING
TYPICAL RAW
WATE;R~~;
(OWIIER INSTALLED)
RAW WA1'tR-.......
I',!
SEACOCK
---'7>""_
~ WESTERBEKE
EngInes
&
Generators
15
INSPECTAND
CLEAN EVERY
100 HOURS