3-12
2. Place the cylinder head cover on the Surface Plate
covered with #400 grit wet-or-dry sandpaper.
Using light pressure, move the cylinder head cover
in a figure eight motion. Inspect the sealing sur-
face for any indication of high spots. A high spot
can be noted by a bright metallic finish. Correct
any high spots before assembly by continuing to
move the cylinder head cover in a figure eight
motion until a uniform bright metallic finish is
attained.
CC130D
Removing Valves
NOTE: Keep all valves and valve components as
a set. Note the original location of each valve set
for use during installation. Return each valve set to
its original location during installation.
1. Using a valve spring compressor, compress the
valve springs and remove the valve keepers.
Account for an upper spring retainer.
CC132D
2. Remove the valve seal and the lower remaining
spring seat. Discard the valve seal.
CC134D
CC136D
NOTE: The valve seals must be replaced.
3. Remove the valve springs; then invert the cylinder
head and remove the valves.
Measuring Valve Stem Runout
1. Support each valve stem end with the V Blocks;
then check the valve stem runout using a dial indi-
cator.
ATV-1082
2. Maximum runout must not exceed specifications.
Measuring Valve Stem Outside
Diameter
1. Using a micrometer, measure the valve stem out-
side diameter.
2. Acceptable diameter ranges must be within speci-
fications.
CAUTION
Do not remove an excessive amount of the sealing
surface or damage to the camshaft will result. Always
check camshaft clearance when resurfacing the cylin-
der head cover.
CAUTION
Water or parts-cleaning solvent must be used in con-
junction with the wet-or-dry sandpaper or damage to
the sealing surface may result.
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