Diesel
Engine
Certification
ABYC
-
Seawater
Cooling
Systems
and
Closed
Cooling
Systems
A
freshwater
and
coolant
comprised
cooling
system
is
known
as...
-
ANS-A
"closed"
or
"indirect"
system
What
is
an
item
near
the
raw
water
intake
for
the
cooling
system
seacock
that
may
easily
be
forgotten
to
add
to
the
bonding
system
and
susceptible
to
failure?
-
ANS-The
metallic
sea
strainer
which
should
be
tied
into
the
bonding
system
What
is
a
common
issue
with
new
installations
of
seacocks
for
the
raw
water
intake
of
the
cooling
system?
-
ANS-Aeration
due
to
improper
installation
Exhaust
manifold
riser
assemblies
are
vulnerable
to
rusting
from
the
inside
out
due
to
cast
iron
interior
wires....
these
vulnerable
hoses
should
be
replaced
every
___
to
___
years
in
a
saltwater
setting
-
ANS-3
-
5
years
You
find
evidence
of
water
in
the
oil
(engine
or
transmission)
and
you
are
suspicious
that
it
may
have
entered
through
....
-
ANS-a
pinhole
leak
in
one
of
the
heat
exchanger
tubes
which
are
supposed
to
be
simply
cooling
the
oil,
not
making
direct
contact
with
You
note
that
the
seawater
strainer
is
not
completely
full
near
the
seacock
assembly...
first,
you
make
sure
that
the
hulls
external
strainer
does
not
have
a
physical
blockade
or
restriction.
Now
you
are
suspicious
of
what?
What
might
happen
to
the
cooling
system
with
a
partially
empty
sea
strainer?
-
ANS-a
partially
empty
strainer
could
be
indicative
of
an
air
leak
(result
is
raw
water
pump
is
unable
to
pull
in
adequate
amount
of
fluid)
engines
that
are
running
too
cold
are
most
often
due
to
....
-
ANS-faulty
thermostats
the
transfer
of
heat
through
matter
by
communication
of
kinetic
energy...
-
ANS-conduction
the
process
by
which
heat
is
transferred
by
movement
of
a
heated
fluid
such
as
air
or
water..
via
heat
exchangers
-
ANS-convection
what
component
of
the
heat
exchanger
is
prone
to
failure
from
wear
from
loss
of
spring
tension
-
ANS-coolant
pressure
cap
if
adding
a
freshwater
heater
tank
to
a
diesel
for
assisted
heating..
make
sure
to
position
the
water
heat
tank
in
what
relative
position
to
the
expansion
tank
(located
on
engine)
-
ANS-water
heater
tank
is
positioned
BELOW
the
expansion
tank
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller EXAMQA. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
