Installation manual
GLOW
PLUGS
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 eleclrical 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 -
1.5
ohm resistance.
Ibis
method
can
be
used
with
the
plug
in
or out of the engine.
You
can
also
use
ao
multimeter to test
the
power drain
(8
- 9
amps
per
plug).
A
WARNING:
These
glow
plugs
will
become
very
hot
to
the
touch.
Be
careful
not
to
burn
your
fingers
when
testing
the
plugs.
GLOW
PLUGS
REFER
TO
THE
WIRING
DIAGRAM
IN
THIS
MANUAL
FOR
ALL
WIRING
CONNECTIONS
Re-install
the
plugs
in
the
engine
and
test
them
again.
The
plugs should
get
very
hot
(at
the terminal end)
within
7
to
15
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.
A
WARNING:
00
not
keep
a
glow
plug
on
for
more
than
30
seconds.
GLOW
PLUG
TIGHTENING
TORQUE
1.0
-
1.5
M-KG
(7
-11
FHB)
.6'===<===-=:~
TERMINAL
END
TESTING
WITH
AN
OHMMETER
KEYI'PREI~EAT
ON
USING
A
TEST
LIGHT
TIP
+
Engines & Generators
27