Arctic Cat 660 cc Service Manual page 65

37. With the cam chain on the crankshaft sprocket,
slide the chain over the camshaft sprockets one at
a time making sure the arrow on each camshaft
aligns with the center of the dark links in the
timing chain.
NOTE: The timing marks in the illustrations have
been highlighted for easy identification. The timing
marks are small triangles on the outer face of the
sprockets.
NOTE: The two camshafts may need to be
rotated sightly to align the two timing marks with
the two dark links.
38. Install the timing chain tensioner and cap screw;
then install the timing chain tensioner guide and
cap screws. Tighten the cap screws to 1.8-2.8 kg-
m (13-20 ft-lb).
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39. While holding in the tab on the timing chain
tensioner plunger, install the timing chain
tensioner guide bracket and cap screws. Tighten
the cap screws to 1.0-1.2 kg-m (7-9 ft-lb).
NOTE: Carefully rotate the crankshaft several
times to make sure there is no binding and that no
valves are making contact with the pistons.
40. Using a suitable driving tool, install the oil seal
into the timing chain cover making sure the spring
side of the seal is directed toward the engine.
NOTE: Make sure to lubricate the lips of the seal
with grease prior to installing.
41. Place the metal ring in the second hole in from the
crankcase side with the chamfer facing out away
from the timing chain cover.
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