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
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
-
1.5
ohm
resistance.
This
method
can
be
used
with
the plug
in
or
out
of the engine.
You
can
also
use
an
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.
PLUG
INJECTOR
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:
Do
not
keep
a
glow.plug
on
for
more
than
30
seconds.'
.
GLOW
PLUG
TIGHTENING
TORaUE
1.0·1.5
M-KG
(7
-11
FT-LB)
USING
A
TEST
LIGHT
TERMINAL
END
'TIP
+
Engi,,!s &
Generators
26·