Arctic Cat 2015 ZR 5000 Service Manual page 67

 NOTE: Prior to installing the pistons, make sure the
oil ring end gaps are on directly opposite sides of the
piston, and the compression ring end gaps are 90°
from one another.
4. Using Ring Compressor and a soft hammer/hammer
handle, carefully drive each piston into the cylinder
until the top of the piston is flush with the engine
case.
5. Rotate the engine to the upside down position for
installing the crankshaft and counterbalancers.
 NOTE: Install a cap screw and large washer to the
cylinder head cap screw hole between pistons to
avoid any chance of the pistons sliding out of the cyl-
inder.
6. With new O-ring, install the piston cooling jets with
Allen-head cap screws; then tighten to 84 in.-lb.
ZJ071A
 NOTE: Prior to installing the jets, make sure the ori-
fices are clear of any debris or contaminants.
7. With the proper bearings selected, install the half-
bearings into the upper engine case; then lubricate
the bearing faces liberally with engine-assembling
grease taking care not to get any grease between the
engine case and bearing.
 NOTE: Make sure the tabs of the bearings are prop-
ZJ072
erly seated to the notches in the upper engine case.
Prior to lubricating the bearings and journals, make
sure all surfaces are cleaned thoroughly and dried with
compressed air to avoid contaminants between the
ZJ073A
bearings and shaft surface.
 NOTE: At this point, remove the connecting rod
caps.
CAUTION
ZJ054A
ZJ055A
ZJ069A
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