Honda Civic Service Manual page 154

Valve Guides
Replacement (cont'd)
Working from the camshaft side, use the driver and
a n a i r h a m m e r t o d r i v e t h e g u i d e a b o u t 2 m m ( 0 . 1 i n )
towards the combustion chamber. This will knock off
some of the carbon and make removal easier.
CAUTION:
. Always wear satety goggles or a face shield when
driving valve guides.
. Hold the air hammer directly in line with the
valve guide to prevent damaging the driver.
Turn the head over, and drive the guide out toward
the camshaft side of the head.
VALVE GUIOE ORIVER,
5.5 mm
07742 - 001 01 00
It a valve guide still won't move, drill it out with a
8 mm {5/16 in) bit, then try again.
CAUTION: Drill guides only in extreme cases; you
could damage the cylinder head it the guide breaks.
6. Remove the new guides from the freezer, one at a
time, as you need them.
6-42
I
7. 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 insralled height. lf
you have all 16 guides to do, you may have to reheat
t h e h e a d .
VALVE GUIOE
DRIVER,5.5 mm
07742 - 0010100
l l
Valve Guide lnstalled Height:
Intake: 17.85 - 18.35 mm (0.703 - 0.722 inl
Exhausi: 18.65 - 19.15 mm (0.734 - 0.754 in)
VALVE GUIDE