3-13
3
Cleaning/Inspecting Valve Cover
NOTE: If the valve cover cannot be trued, the cylin-
der head assembly must be replaced.
1. Wash the valve cover in parts-cleaning solvent.
2. Place the valve cover on the Surface Plate covered with
#400 grit wet-or-dry sandpaper. Using light pressure,
move the valve cover in a figure eight motion. Inspect
the sealing surface for any indication of high spots. A
high spot can be noted by a bright metallic finish. Cor-
rect any high spots before assembly by continuing to
move the valve cover in a figure eight motion until a
uniform bright metallic finish is attained.
CC130D
Removing Valves
NOTE: Index all valves, springs, and cotters to their orig-
inal position when removing. When installing, all valve
components should be installed in their original position.
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 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 indicator.
ATV-1082
2. Maximum runout must not exceed specifications.
Measuring Valve Stem Outside
Diameter
1. Using a micrometer, measure the valve stem outside
diameter.
2. Acceptable diameter range must be within specifica-
tions.
Measuring Valve Face/Seat Width
1. Using a micrometer, measure the width of the valve
face.
CAUTION
Do not remove an excessive amount of the sealing sur-
face 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 con-
junction with the wet-or-dry sandpaper or damage to
the sealing surface may result.
FOR ARCTIC CAT ATV DISCOUNT PARTS CALL 606-678-9623 OR 606-561-4983
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