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Westerbeke 12C- TWO User Manual

Westerbeke 12C- TWO
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ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE
recommends
that
the
following engine
adjustments
be
peifonned
by
a competent
engine
mechanic.
The
infonnatlon
below
is
provided
to
assist
the
mechanic.
FUEL
INJECTORS
NOTE:
WESTERBEKE
recommends
that
the following
engine
adjustments be peifonned
by
a competent
engine
mechanic.
The
information below
is
provided
to
assist
the
mechanic.
REMOVING
FUEL
INJECTORS
NOTE:
Injector must
be
serviced
in
a "clean room"
environment.
1.
Disconnect
the
high
pressure
fuel
lines
from
the
injectors
and
loosen
the
lines
at
their
attachment
to
the
injection
pump
and
move
them
out
of
the
way
of
the
injectors.
Avoid
bending
the
lines.
2.
Using
a
17mm
long
socket,
remove
the fuel return
line
in
its
entirety
from
the
top
of
the
injectors.
Take
care
not
to
loose
the
two
sealing
washers
and
banjo
bolt that attaches
the
fuel
return
l.ine
,to
each
injector.
NOTE:
Clean
the
area
around
the
base
of
the
injector
prior
to
lifting
it
out
of
the
cylinder head
to
help prevent
any
rust
or debris
from
falling
down
into
the
injector
hole.
If
the
injector
will
not
lift out easily and
is
held
in
by carbon build-up or
the
like,
work
the
injector
side-to-
side
with
the
aid
of
the
socket wrench
to
free
it,
and
then
lift
it
out
..
3.
The injector
seats
in
the
cylinder head
on
a
copper
sealing
washer.
This
washer
should
be
removed
with
the
injector
and
replaced
with
a
new
washer
when
the
injector
is
reinstalled.
INSPECTING
THE
SPRAY
PATTERN
1.
Operate
the
hand lever
of
the
nozzle
tester
at
intervals of
one
stroke
per
second
to
check
if
the
fuel
is
injected
correctly
in
its
axial
direction.
A
nozzle
is
defective if
it
injects
fuel
in
an
oblique
direction
or
in
several separate
strips.
Also,
a
spray
in
the
form
of
particles
indicates a
defect.
These
defects
may
sometimes
be
caused by
clogging
with
dust
and,
therefore,
all
parts should be
carefully
cleaned before
reassembly.
"~.~
00'"
~
~m
({.
DRIP
TEST
:i!
2.
Apply
the
pressure of
1635
kg/cm'
(115
1b/in')
to
nozzle
by
operating
the
hand
lever,
and
check
the drips from
the
nozzle
tip.
If
it
drips
or
has
a
large
accumulation of
fuel
on
the
bottom, it
is
considered
defective
and should
be
replaced.
A
very
small
amount
of
fuel
may
sometimes
remain
on
the
tip
of the
nozzle;
however,
this
does
not
indicate a defect.
A
WARNING:
The
spray
injected
from
the
nozzle
is
of
such
velocity
that
it
may
penetrate
deeply
Into
the
skin
of
fingers
and
hands,
destroying
tissue.
If
it
enters
the
bloodstream,
FUEL
INJECTION
PRESSURE
1991
TO
2134
psi,
(140
TO
150
kgl/cm')
13.7310
14.71
MPa
",.N:OllILEINJECTION
INJECTION
PRESSURE
TEST
INJECTION
TESTING
1.
Using
the
nozzle
tester,
check
the
spray pattern
and
injection
starting
pressure
of the
nozzle.
If it
exceeds
the
limit, adjust
or
replace
the
nozzle.
When
using a
nozzle
testee,
take
the
following
precautions:
CHATTERING
'&;],
',I@
TEST
lEf1J
, I
I.
NORMAL
~!
FAULTY
-',
FAULTY
~~\\'
I:~'
,\
,:i
'I'"
~
,
1",',
•
,!
I I \
\',".
INSTALLING
Install
the
nozzle
and
nozzle
holder
assembly
in
the
roverse
order
of
removal.
When
installing
the
nozzle
and
nozzle
holder
assembly,
use
a
new
copper
washer_
"W'WESTERBEKE
Enginell&cGenerators '
! -
-~--.--.
--,'
'.
-
43

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Westerbeke 12C- TWO Specifications

General IconGeneral
BrandWesterbeke
Model12C- TWO
CategoryEngine
LanguageEnglish

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