Arctic Cat 2015 ZR 5000 Service Manual page 68

8. Lubricate the lips of the crankshaft seal with grease
and install the crankshaft seal over the PTO end of
the crankshaft with the spring side of the seal
directed toward the crankshaft; then install the crank-
shaft.
 NOTE: Position the crankshaft at bottom-dead-cen-
ter for assembling purposes.
9. Lubricate the thrust bearings with engine oil; then
with the grooved side of the bearings (A) facing out-
ward towards the crankshaft counterweights, install
the first bearing and roll it into place. Push the crank-
shaft towards the installed bearing and install the
remaining bearing.
CAUTION
Failure to install the crankshaft thrust bearings properly
could result in severe engine damage.
10. Install the bearing halves to the connecting rods and
caps; then lubricate the bearing surfaces and con-
necting rod journals of the crankshaft.
11. Seat the connecting rods to the crankshaft; then
install the rod caps and cap screws and tighten only
until snug.
12. Alternately, tighten each of the connecting rod cap
screws evenly to 25 ft-lb; then in turn tighten each
cap screw an additional 90° turn to obtain the final
recommended torque value.
66
 NOTE: Rotate the crankshaft one revolution to ver-
ify free movement.
13. With the O-ring lubricated with engine oil, install the
oil-relief valve.
ZJ053
 NOTE: Prior to installing the oil-relief valve, make
sure the valve is free and clear of any contaminants.
14. With proper bearings selected, install the counterbal-
ancer bearing halves into the upper engine case; then
apply a light film of engine-assembly grease to the
bearing surfaces.
15. Rotate the crankshaft to the bottom-dead-center posi-
ZJ074A
tion; then install the rear counterbalancer with the
two dots (A) on the face of the crankshaft and bal-
ancer gears directly in line with each other at the
sealing surface of the engine case.
 NOTE: The front counterbalancer has the oil pump
drive gear.
ZJ075
ZJ076A
741-596A