Balance Shaft Installation; Lower Crankcase Preparation; Crankcase Assembly - Polaris RZR XP Turbo Service Manual

BALANCE SHAFT INSTALLATION

1. Clean the upper crankcase balance shaft bearing
bore surfaces.
2. Align tab of new balance shaft bearings with the slot
in each bearing bore of crankcase. Press bearing
insert firmly into place.
3. Rotate the crankshaft until the alignment dot on the
crankshaft MAG end gear is visible.
4. Apply Polaris PS-4 engine oil to both balance shaft
journals.
9928491 R04 - 2017-2018 RZR XP Turbo / XP4 Turbo Service Manual
© Copyright Polaris Industries Inc.
ENGINE / COOLING SYSTEM
5. Install the balance shaft, placing the tooth with the
alignment dot in-line with the dot on the crankshaft
gear.

LOWER CRANKCASE PREPARATION

NOTE
Always replace plain bearings when the crankcase or
connecting rods have been disassembled. Refer to
bearing selection procedures.
1. Remove all traces of crankcase sealant from the
crankcase mating surfaces. Inspect the surfaces
closely for nicks, burrs or damage.
2. Clean bolt hole threads to remove any oil or
crankcase sealant.
3. Inspect crankcase bearing bores. Replace the
crankcase assembly if a bearing bore is galled or if
bearing inserts have rotated in the case.
4. Be sure alignment pins are in place where used.
5. Refer to Oil Flow Chart, page 3.6 at the beginning of
this chapter and trace the oil paths through the
crankcase and cylinder..
6. Flush all oil passages with solvent and then warm
soapy water. Rinse with clear, warm water and dry
with compressed air.
7. Ensure passages are
assembling the crankcase.

CRANKCASE ASSEMBLY

1. Check to be sure the PTO crankshaft seal is resting
properly in the upper crankcase.
clean and dry before
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