Camshaft / Camshaft Bore Inspection; Cylinder Head Removal; Cylinder Head Cleaning - Polaris Sportsman XP 1000 S 2020 Service Manual

ENGINE / COOLING SYSTEM
CAMSHAFT / CAMSHAFT BORE
INSPECTION
1. After camshaft carrier is removed, lift camshaft from
cylinder head. Inspect all main journals and cam
lobes as described below and compare to
specifications (see Engine Specifications page 3.7).
Replace if worn beyond service limit or if any surface
is pitted or damaged.
2. Measure all cam lobe heights from base circle to
highest point on lobe.
3. Temporarily install camshaft carrier as shown below
to measure the camshaft bore. Replace cylinder head
if worn.
3.48

CYLINDER HEAD REMOVAL

1. Loosen two outer bolts
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evenly, 1/8 turn at a time until all are loose.
Remove all bolts, cylinder head, and gasket
NOTICE
Head can be removed from cylinder / crankcase without
removing cam carrier (C) but the center two cylinder
head bolts cannot be removed from the head unless
carrier is removed.

CYLINDER HEAD CLEANING

Thoroughly clean cylinder head surface to remove all
traces of gasket material and carbon.
IMPORTANT
Use care not to damage gasket sealing surface. All
gasket surfaces must be clean, dry, and free of any oil
or grease upon assembly.
Clean sealing surfaces with rubbing alcohol, electrical
contact cleaner or a brake cleaner that does not leave a
solvent residue. Do not touch sealing surfaces of the
new head gasket.
9931493 R03 - 2020-2021 Sportsman XP 1000 S Service Manual
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, then loosen all head bolts
e
.
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