Polaris RANGER CREW 900 2014, Manual

Page: 113 / 447

3.56
9924880 Rev 2- 1/10/2014 - 2013 / 2014 RANGER XP 900 - 2014 RANGER XP 900 / CREW 900 Service Manual
© Copyright Polaris Sales Inc.
CRANKCASE INSPECTION
1. Remove the oil drain diverter
q
from the upper
crankcase.
2. Remove all traces of crankcase sealer from the
crankcase mating surfaces. Inspect the surfaces
closely for nicks, burrs or damage.
3. Be sure alignment pins are in place where used.
4. Be sure oil passages are clean and free of any
cleaning solvent (see Engine Oil Flow Chart, page
3.7).
5. Remove and discard the plain bearings located in
the upper crankcase
w
, lower crankcase
e
and
connecting rods
r
. Replace the crankcase
assembly if a bearing bore is galled or if bearing
inserts have rotated in the case. Refer to bearing
selection procedures upon assembly.
NOTE
Always replace plain bearings when the crankcase or
connecting rods have been disassembled. Refer to
Crankshaft Main Bearing Selection, page 3.64.
CYLINDER / PISTON REMOVAL
CAUTION
Pistons must be removed from the cylinders with the
connecting rods attached.
DO NOT attempt to service the cylinder or pistons
without disassembling the crankcase. Although you can
remove the cylinder and pistons without disassembly,
you will not be able to reassemble the engine because
of the unique cylinder skirt and crankcase design.
1. Perform “ENGINE DISASSEMBLY / INSPECTION -
TOP END” and the “ENGINE DISASSEMBLY /
INSPECTION - LOWER END” procedures.
ENGINE