Valve Sealing Test; Cylinder Removal; Valve Lifter Removal / Inspection - Polaris 2013 RANGER RZR S Service Manual

ENGINE / COOLING

Valve Sealing Test

1. Clean and dry the combustion chamber area (A).
A
2. Pour a small amount of clean solvent onto the intake
port and check for leakage around each intake valve.
The valve seats should hold fluid with no seepage.
3. Repeat for exhaust valves by pouring fluid into
exhaust port.

Cylinder Removal

1. Follow engine disassembly procedures to remove
rocker cover and cylinder head.
2. Tap cylinder (A) lightly with a rubber mallet in the
reinforced areas only until loose.
3. Rock cylinder forward and backward while lifting it
from the crankcase,
connecting rods. Support pistons with Piston Support
Block (PN 2870390).
A
3.34
supporting pistons and
9924125 - 2013 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2012 Polaris Sales Inc.

Valve Lifter Removal / Inspection

1. Remove the valve lifters by reaching into the
crankcase and pushing the lifter up through the lifter
bore by hand.
2. Thoroughly clean the lifters in cleaning solvent and
wipe them with a clean, lint-free cloth.
3. Mark the lifters with a white pen if using the lifters for
reassembly. This will ensure that the lifters are
properly placed during engine reassembly.
Mark Hydraulic Lifter
4. Check the lifters for wear or scores.
5. Check the bottom end of lifter to make sure that it has
a slight convex.
6. If the bottom surface has worn flat, it may be used with
the original camshaft only.
NOTE: Lifters that are scored, worn, or if the bottom
is not smooth should be replaced with new lifters
and cam as an assembly. If replacing the lifters, the
camshaft should also be replaced.
Inspect Hydraulic Lifter