Arctic Cat ROV 2013 Service Manual page 32

3. Push the valve from side to side; then from top to
bottom.
4. Maximum "wobble" deflection must not exceed
specifications.
Measuring Valve Guide
(Inside Diameter)
1. Insert a suitable bore gauge 1/2 way into each valve
guide bore and record the measurement.
2. Acceptable inside diameter range must be within
specifications.
3. If a valve guide is out of tolerance, it must be
replaced.
Servicing Valves/Valve Guides/Valve
Seats
If valves, valve guides, or valve seats require servicing or
replacement, Arctic Cat recommends the components be
taken to a qualified machine shop for servicing.
CAUTION
If valves are discolored or pitted or if the seating sur-
face is worn, the valve must be replaced. Do not attempt
to grind the valves or severe engine damage may occur.
Measuring Rocker Arm (Inside
Diameter)
1. Using a dial calipers, measure the inside diameter of
the rocker arm.
2. Acceptable inside diameter must not exceed specifi-
cation.
Measuring Rocker Arm Shaft
(Outside Diameter)
1. Using a micrometer, measure the outside diameter of
the rocker arm shaft.
2. Acceptable outside diameter must be at or above
specification.
Installing Valves
1. Apply grease to the inside surface of the valve seals;
then place a lower spring seat and valve guide seal
over each valve guide.
CC131D
2. Insert each valve into its original location.
3. Install the valve springs with the painted end of the
spring facing away from the cylinder head.
NOTE: If the paint is not visible, install the ends
of the springs with the closest wound coils toward
the head.
4. Place a spring retainer over the valve springs; then
using the valve spring compressor, compress the
valve springs and install the valve cotters.
PISTON ASSEMBLY
NOTE: Whenever a piston or pin is out of toler-
ance, it must be replaced.
Removing Piston Rings
1. Starting with the top ring, slide one end of the ring
out of the ring-groove.
CC144D
ATV-1011A
CC132D
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