Polaris RANGER XP 1000 2018-2019, Service Manual

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9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
© Copyright Polaris Industries Inc.
3.55
CRANKCASE INSPECTION
1. Remove the oil drain diverter (A) 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. Refer to
“Engine Oil Flow
Chart”page 3.30 .
5. Remove and discard the plain bearings located in
the upper crankcase (B), lower crankcase (C) and
connecting
rods (D). 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.
NOTICE
Always replace plain bearings when the crankcase or
connecting rods have been disassembled. Refer to the
bearing selection chart provided in the “Crankshaft
Main Bearing Selection”page 3.65 and “Connecting
Rod Bearing Selection”page 3.65 procedures.
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.
2. Rotate the engine so the cylinder is facing up.
ENGINE / COOLING / HVAC SYSTEM