Arctic Cat Cougar Service Manual page 205

ENGINE
NOTE
Installation is easier
if
the holes in the
main bearings outer races for the lock-
ing dowel pins are in line (Figure 116)
and straight down when lowering the
crankshaft into the crankcase lower half.
It still may be necessary to move the
outer races slightly to engage the locking
pins, but little movement should be re-
quired.
195
a. Align the groove in the bearing with the
C-ring (B, Figure 111) in the crankcase
groove.
b. Align the ring on the oil seal with the crank-
case groove as shown in Figure 117.
c. Make sure the center drive gear meshes
properly with the gear on the coolant pump
and oil injection pump driveshaft.
d. Make sure the end seals fit into the crank-
case properly.
e. Check that all six of the bearing locating
pins properly engage the holes in the outer
races of all six bearings. Try to tum each
bearing's outer race to make sure the pin
properly seats in the bearing.
CAUTION
It is important that the bearings and
seals are properly aligned with the pins,
C-ring and grooves, before continuing
assembly. The upper half of the crank-
case cannot be installed until the crank-
shaft, seals and bearings are completely
seated in the lower half. Attempting to
force the parts into place will damage
the parts.
7C. On 440 (435.8 and 437.4 cc), 500, 550, 580
and 600 (594 and 599 cc) engines, align the
crankshaft with the upper crankcase half and
install the crankshaft with the connecting rods
down (Figure 118, typical). Observe the follow-
mg:
a. Check that all the bearing locating pins
properly engage the holes in the outer races
of all main bearings. Try to tum each bear-
ing's outer race to make sure the pin prop-
erly seats in the bearing.
b. Tum the crankshaft center seal rings (Fig-
ure 119) until the end gaps are 180° away
from each other. On three-cylinder engines,
none of the gaps should be aligned.
c. Make sure the end seals fit into the crank-
case properly.