Installation manual
ENGINE
ADJUSTMENTS
NOTE:
WESTERBEKE recommends that the following engine adjust-
ments be performed by a competent engine mechanic. The
i~Jformation
below
is
provided to assist the mechanic.
GLOW
PLUGS
TYPICAL
DESCRIPTION
The glow plugs are wired through the preheat solenoid.
When PREHEAT is pressed at the control panel this solenoid
should
"click" on and the glow plug should begin to get hot.
INSPECTION
To
inspect the plug, remove the electrical terminal connec-
tions, then unscrew or unclamp each plug from the cylinder
head. Thoroughly clean each plug's tip and threads with a
soft brush and cleaning solution to remove all the carbon and
oil deposits. While cleaning, examine the tip for wear and
bum erosion;
if
it has eroded too much, replace the plug.
TESTING
An accurate way to test glow plugs is with an ohmmeter.
Touch one prod to the glow plug's wire connection, and
the other to the body
of
the glow plug, as shown. A good
glow plug will have a
1.0- to 1.5-ohm resistance. This
method can be used with the plug
in
or out
of
the engine.
You
can also use
an
ammeter to test the power drain
(8
to 9 amps per plug).
A
WARNING:
These
glow
plugs
will
become
very
hot
to
the
touch.
Be
careful not
to
bum
your
fingers
when
testing
the
plugs
Re-install the plugs
in
the engine and test them again. The
plugs should get very hot (at the terminal end) within 20
to
25
seconds.
If
the plugs don't heat up quickly, check for a
short circuit. When reinstalling the glow plugs, use anti-seize
compound on the threads.
Glow
Plug
Tightening
Torque
7 -
11
lb-H
(1.0
-
1.5
kg-m)
A
WARNING:
Do
not
keep
a
glow
plug
on
for
more
than
30
seconds
24
FUEL
INJECTORS
In case of severe vibrations and detonation noise, have the
injectors checked and overhauled
by
an authorized fuel
injection service center.
Poor fuel quality, contaminants and
loss
of
positive fuel pressure to the injection pump can result
in injector faults.
Since fuel injectors must
be
serviced
in
a
clean room enviroment, it
is
best to carry at least one extra
injector
as
a spare should a problem occur.
Before removing the old injector, clean the area around the
base
of
the injector 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.
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 new injector
is
installed.
Injector
to
Cylinder
Head
Tightening
Torque
40
± 4
H-lb
(5.5
±
0.5
kgf-m)
FUEL
INJECTOR
REFER
TO
YOUR
WESTERBEKE
SERVICE
MANUAL
FOR
TESTING
AND
SERVICING
OF
FUEL
INJECTORS.