3
9940259 R02 - 2022 RZR PRO R / PRO R 4 Service Manual
© Copyright Polaris Industries Inc.
3.77
LOWER CRANKCASE INSTALLATION
1. For crankcase bearing selection, see Crankshaft
Main Bearing Selection page 3.73 and Bearing
Selection Identification Letters and Numbers
page 3.72.
2. Install the upper crankshaft bearings and lubricate
bearing surfaces with engine oil.
3. Install the crankshaft on the journals.
4. Install the lower bearing halves, without grooves, into
the lower crankcase. Apply oil to bearing surfaces.
5. If removed, install the engine block alignment dowels.
6. Install the lower block bearings.
7. Clean both halves of the block sealing surfaces with
isopropyl alcohol. Apply crankcase sealant in a bead
approximately 3mm wide by 2mm high, as shown.
Crankcase Sealant:
Three Bond 1215 - PN 2871557
Three Bond 1217H - PN 2884392
8. Install the lower crankcase. Tap gently into place with
a suitable tool if necessary. Ensure it is aligned
properly on the alignment dowels.
ENGINE / COOLING SYSTEM
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