3-62
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 (intake valve) must be
within specifications.
3. Acceptable diameter range (exhaust valve) must be
within specifications.
Measuring Valve Face/Seat Width
1. Using a micrometer, measure the width of the valve
face.
ATV-1004
2. Acceptable width range must be within specifica-
tions.
Measuring Valve Face Radial
Runout
1. Mount a dial indicator on the surface plate; then
place the valve stem on a set of V blocks.
2. Position the dial indicator contact point on the out-
side edge of the valve face; then zero the indicator.
ATV1082A
3. Rotate the valve in the V blocks.
4. Maximum runout must not exceed specifications.
Measuring Valve Guide/Valve Stem
Deflection (Wobble Method)
1. Mount a dial indicator and base on the surface plate;
then place the cylinder head on the surface plate.
2. Install the valve into the cylinder head; then position
the dial indicator contact point against the outside
edge of the valve face. Zero the indicator.
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Страница 233: ... Printed in U S A Trademarks of Arctic Cat Inc Thief River Falls MN 56701 p n 2259 530 ...