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Valve Guides
Replacement (cont'd)
4.
Working
from the
camshaft side,
use
the
driver and
an
air hammer to
drive
the
guide
about 2 mm
to.l
in)
towards
the
combustion
chamber.
This will
knock
off
some
of the
carbon and
make removal
easier. Hold the air hammer
directly
in line with
the
valve
guide to
prevent
damaging the
driver.
CAUTION: Always we.' safety goggles 0' • face
shield when driving valve guides.
5.
Turn the head
over and drive
the
guide
out toward
the
camshaft side
of the head.
VALVE GUIDE DRIVER, 6.6
mm
07942 - 6570100
6.
If
a
valve guide
won't
move,
drill
it
out with
a 8.0
mm
(5/16
in) bit. then try
again.
Drill
guides only
in
extreme
cases;
you
could damage
the
cylinder head
if
the guide
breaks.
7.
Remove the new guide(s) from
the freezer, one at a
time,
as
you need
them.
6-26
8.
Apply
a
thin
coat of clean engine
oil to the
outside
of
the new
valve
guide. Install the
guide from the
camshaft side of
the head; use the
special
tool
to
drive
the guide in
to
the
specified
installed height. If
you
have
all
16
guides to
do,
you may have to
reheat
the
head.
VALVE GUIDE DRIVER, 6.6
mm
07942
-
6570100
ATTACHMENT
Valve Guide Installed Height:
Intake:
13.75 -14.25
mm
(0.541 - 0.561
in)
Exhaust:
15,75 -16.25
mm
(0.620 - 0.640
in)
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Table of Contents
Troubleshooting
