3.18
9850064 R03 - 2021 650 / 850 Matryx Trail Performance / Crossover Snowmobile Service Manual
© Copyright Polaris Inc.
10.Remove the crankshaft
r
by pulling it straight up and
out. Inspect as required
NOTICE
Crankcase ring land damage in the area shown is
caused by improper crankshaft removal.
11. Discard the PTO and MAG crankshaft seals.
12.With the upper crankcase half removed, remove the
oil check valve fitting
t
using a punch to extract it
from the top side.
NOTICE
Note the orientation of the fitting to ensure proper
installation.
13.Apply a drop of green Loctite 603 to the new oil check
valve fitting barrel
y
.
IMPORTANT
Be careful not to drip any Loctite on the inlet ports or
outlet of the check valve fitting.
ENGINE / COOLING / EXHAUST
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