Arctic Cat Prowler HDX Service Manual page 55

C. Cylinder Head/Camshaft
D. Cylinder Head Cover/
Rocker Arms
NOTE: Steps 1-4 in the preceding sub-section
must precede this procedure.
5. While keeping tension on the cam chain, place the
front cam chain guide into the cylinder.
CAUTION
Care should be taken that the bottom of the chain guide
is secured in the crankcase boss.
6. Place a new gasket into position on the cylinder.
Place the alignment pins into position; then place the
head assembly into position on the cylinder making
sure the cam chain is routed through the chain cavity.
CAUTION
Keep tension on the cam chain to avoid damaging the
crankcase boss.
7. Install the four cylinder head cap screws with wash-
ers. Note that the two cap screws on the right side of
the cylinder head nearest the cam sprocket are longer
than the two cap screws on the left (spark plug) side.
Tighten only until snug.
8. Install the two lower nuts securing the cylinder head
to the cylinder, one in front and one in rear.
9. In a crisscross pattern, tighten the four cylinder head
cap screws (from step 7) to 28 ft-lb. Tighten the two
lower cylinder head nuts (from step 8) to 20 ft-lb and
the cylinder-to-crankcase nuts (from step 4) to 8 ft-
lb.
52
10. With the timing inspection plug removed and the cam
chain held tight, rotate the crankshaft until the piston is at
top-dead-center.
11. While holding the cam chain to the front, install the rear
cam chain tensioner guide into the cylinder head. Install
the pivot cap screw and washer. Tighten to 11 ft-lb.
12. With the alignment pin installed in the camshaft and the
cam lobes directed down (toward the piston), place the
camshaft in position and verify that the timing mark on
the magneto is visible through the inspection plug and
that the timing marks on the camshaft sprocket are paral-
lel with the valve cover mating surface.
FI621
NOTE: When the camshaft assembly is seated,
make sure the alignment pin in the camshaft aligns
with the smallest hole in the sprocket.
13. With the alignment pin installed in the camshaft, loosely
place the cam sprocket (with the recessed side facing the
camshaft lobes) onto the camshaft and place it into posi-
tion with the cam chain over the sprocket.
MD1347
CD383
GZ190C
CD463