Polaris RZR 4 Offroad Vehicle User Manual


 
3.27
ENGINE
3
9923142 - 2011 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2010 Polaris Sales Inc.
Cylinder Head Disassembly
1. Carefully remove the cylinder components.
2. Place the hydraulic lifters (C), pushrods (D), and rocker
arms (E) in a safe, clean area.
3. Measure free length of spring with a Vernier caliper.
Compare to specifications. Replace spring if measurement
is out of specification.
4. Remove valve guide seals.
IMPORTANT: It is recommended to replace seals
whenever the cylinder head is disassembled.
Hardened, cracked or worn valve seals will cause
excessive oil consumption and carbon buildup.
5. Mark the valves with a white pen. Remove the valves from
the cylinder head. This will ensure that the valves are
properly placed during engine reassembly.
= In. / mm.
Valve Spring Free Length:
Std: 1.735" (44.069 mm)
D
C
E
Valve Spring
Free Length
Mark the Valves