Engine / Cooling
3.36
Engine Assembly -- All Engines
CAUTION:
The cylinder mounting studs on Polaris engines are used to secure crankcase halves along with the crankcase
bolts. Cylinder base nuts must be temporarily installed and torqued to maintain even pressure on the crankcase
sealing surfaces during top end assembly. Do not allow crankcase sealer to cure before torquing base nuts or
assembling the top end. Be sure all top end parts are clean, inspected, and ready for assembly prior to assembling
engine lower end. Improper crankshaft main bearing clearance may result if sealer dries, causing premature en-
gine wear. Be sure to follow the Crankcase Assembly procedure below when assembling crankcases.
1. Clean crankshaft and lubricate with Polaris
Premium 2 Cycle Oil.
2. If new outer main bearings are being installed, heat
new bearings on a hot plate.
CAUTION:
Wear protective gloves to avoid burns when installing
bearings.
3. Install inner bearing on PTO end. Install spacer and
outer bearing. Be sure bearings are fully seated. If
necessary, tap bearing lightly on inner race only
until fully seated.
CAUTION:
Do not drive on outer race or bearing damage may occur.
Polaris Premium 2 Cycle Oil
PN 2871098 - Gallon
PN 2871097 - Quart
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