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9924874 R02 - 2014 RZR XP / XP 4 1000 Service Manual
© Copyright 2013 Polaris Industries Inc.
5. Refer to “Oil Flow Chart” 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. Be sure passages are clean and dry before
assembling the crankcase.
Crankcase Assembly
1. Check to be sure the PTO crankshaft seal is resting
properly in the upper crankcase.
2. Align tab of new main bearings (Item 1) and new
balance shaft bearings (Item 2) with the slot in each
bearing bore of the lower crankcase. Press bearing
inserts firmly into place.
3. Apply Polaris PS-4 engine oil to the new bearings
installed in the lower crankcase half.
4. Clean crankcase mating surfaces to remove any oil.
5. Apply a thin, continuous film of Crankcase Sealant
(PN 2871557) to upper crankcase mating surface
(Item 3) as shown. Do not allow sealant to dry before
assembly.
NOTE: DO NOT block oil passages (Item 4) with
crankcase sealant.
6. Carefully place lower crankcase on upper case,
making sure the oil pump drive chain is fed through
the lower crankcase.
7. Tap lower crankcase with a rubber hammer to seat
the case halves together.
8. Inspect crankcase mating surfaces to be sure they
are joined properly. Investigate the cause of any
gaps.
ENGINE
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