3-21
3
Cleaning/Inspecting Valve Cover
NOTE: If the valve cover cannot be trued, the cyl-
inder head assembly must be replaced.
1. Wash the valve cover in parts-cleaning solvent.
2. Place the valve cover on the Surface Plate (p/n
0644-016) covered with #400 grit wet-or-dry
sandpaper. Using light pressure, move the valve
cover in a figure eight motion. Inspect the seal-
ing surface for any indication of high spots. A
high spot can be noted by a bright metallic fin-
ish. Correct any high spots before assembly by
continuing to move the valve cover in a figure
eight motion until a uniform bright metallic fin-
ish 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 cotters.
Account for an upper spring retainer.
CC132D
2. Remove the valve seal and the lower remaining
spring seat. Discard the valve seal.
CC136D
NOTE: The valve seals must be replaced.
3. Remove the valve springs; then invert the cylin-
der head and remove the valves.
Measuring Valve Stem Runout
1. Support each valve stem end with the V Blocks
(p/n 0644-022); then check the valve stem
runout using a dial indicator.
ATV-1082
2. Maximum runout must not exceed specifica-
tions.
! 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 valve cover.
! CAUTION
Water or parts-cleaning solvent must be used in
conjunction with the wet-or-dry sandpaper or dam-
age to the sealing surface may result.
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