3
9850043 R01 - 2017-2021 RANGER 500 / 570 Service Manual
© Copyright Polaris Inc.
3.83
BALANCE SHAFT INSTALLATION / TIMING
1. Position balance shaft in the crankcase.
2. Rotate crankshaft to align the timing marks
q
as
shown below.
3. Fully seat the balance shaft into the crankcase and
verify timing marks are correct.
FINAL CRANKCASE ASSEMBLY
1. Prepare lower crankcase by cleaning sealing
surface. Be sure the oil pickup and oil pressure valve
are fully installed.
2. Apply a thin film of Crankcase Sealant (PN 2871557)
evenly to a clean and oil-free crankcase mating
surface as indicated below
q
. Be sure alignment
pins
w
are in place.
Crankcase Sealant:
PN 2871557
3. Carefully assemble MAG crankcase to PTO
crankcase immediately. Do not allow sealant to dry.
4. Tap crankcase evenly until fully seated with a soft
sided hammer.
5. Install the new crankcase bolts finger tight in MAG
side crankcase.
6. Tighten all bolts evenly until snug.
ENGINE / COOLING SYSTEM
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