Arctic Cat 2009 366 Service Manual page 44

4. If any measurement exceeds the limit, the cylinder
must be replaced.
Measuring Camshaft Runout
NOTE: If the camshaft is out of tolerance, it must
be replaced.
1. Place the camshaft on a set of V blocks; then posi-
tion the dial indicator contact point against the
shaft and zero the indicator.
2. Rotate the camshaft and note runout; maximum
tolerance must not exceed specifications.
Measuring Camshaft Lobe Height
1. Using a calipers, measure each cam lobe height.
2. The lobe heights must not exceed minimum speci-
fications.
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CC283D
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Inspecting Camshaft Bearing
Journal
1. Inspect the bearing journal for scoring, seizure
marks, or pitting.
2. If excessive scoring, seizure marks, or pitting is
found, the cylinder head assembly must be
replaced.
Measuring Camshaft to
Cylinder Head Clearance
1. Loosen the jam nuts and adjuster screws.
2. Place a strip of plasti-gauge in each of the cam-
shaft lands in the cylinder head.
3. Place the valve cover on the cylinder head and
secure with the valve cover cap screws. Tighten
securely.
NOTE: Do not rotate the camshaft when measur-
ing clearance.
4. Remove the cap screws securing the valve cover to
the cylinder; then remove the valve cover and
camshaft.
5. Match the width of the plasti-gauge with the chart
found on the plasti-gauge packaging to determine
camshaft to cylinder head and valve cover clearance.
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CC005D
MD1261
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