Westerbeke 38B FOUR Operator's Manual download pdf (Page 48)

ANTIFREEZE CONCENTRATION

DATA

Antifreeze

Concentration

Freezing

Temperature

(-5)

(-10)

Filling

the

Fresh Water System

(-15)

-4

(-20)

-22

(-30)

-40

(-40)

-58

(-50)

A coolant recovery

tank

kit is supplied with each Westerbeke diesel engine.

The

purpose

this recovery

tank

allow for engine coolant expansion

and

contraction, during engine operation, without the loss

coolant

and

without introducing air into

the

cooling system.

This

coolant recovery tank kit is supplied with

each

Westerbeke diesel engine.

The

purpose

this

recovery

tank

is to allow for engine coolant expansion

and

contraction, during engine operation, without

the

loss

coolant

and

without introducing

air

into

the

cooling system.

This

coolant recovery tank should be installed at,

above, engine manifold level,

a location where it

can

easily monitored

and

where coolant

can

easily added

needed (see

the

figure below). A

stainless steel mounting bracket is supplied with

each

kit along

with

a 30

inch

length

clear

plastic hose

and

clamps to connect

the

hose between the engine's manifold fitting to

the

hose spud on

the

base

the

recovery tank.

FUNCTION

MANIFOLD

PRESSURE

CAP

From

Coolant

Tank

COOLANT RETRACTION

COOLANT EXPANSION

Coolant

from

the engine,

when

heated during engine operation, will expand, lifting

the

spring-loaded

manifold pressure cap,

and

enter the recovery

tank

by way

the

hose connecting the recovery

tank

the

manifold.

When

the

engine is shut down and cools, a small check valve in the pressure cap is opened by

the

contraction

the engine coolant, allowing some

the

coolant in the recovery tank to

drawn

back into

the engine's cooling system, free

air without loss. Periodically check

that

the passage (A) between

the

90° fitting

the

manifold

and

the filler neck in the manifold is clear so coolant flow

either direction.

WESTERBEKE GENERATORS

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Westerbeke 38B FOUR Operator's Manual Page 48

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