3.60
ENGINE / COOLING SYSTEM
9923523 - 2012
RANGER
RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
9. Measure the valve clearance of each valve using a
thickness (feeler) gauge. Record the measurement if
clearance is out of specification.
10. If any of the valve clearance measurements are out
of specification, re move th e ca mshaft carrier an d
camshafts and proceed with this procedure.
NOTE: If a ll valve clear ance meas urements are
within s pecification, remov e t he ca mshaft ca rriers
and proceed to “Camshaft Installation / Timing”.
11. Remove the valve bucket from a valve that was out of
specification.
IMPORTANT: Keep mated parts together and in order
with respect to their location in the cylinder head for
assembly purposes. Mark each component or place
them in an organized rack as you remove them.
12. Record the 3 digit adjustment shim number (B).
NOTE: Shim 240 is shown for reference only.
13. Reference the valve
clearance m easurement
recorded fo r th at valve, alon g with the 3- digit sh im
number.
14. Refer to the appropriate shim selection matrix (Intake
or Exha ust) on the fo llowing pag es an d se lect th e
proper shim.
15. Install the new adjustment shim and valve bucket.
NOTE: Lubricate th e out er portion of the va lve
bucket upon installation.
16. Repeat steps until all ne cessary valves ha ve been
adjusted.
17. Reinstall th e ca mshafts an d ca mshaft carriers and
tighten the bolts evenly to specification.
18. Measure and co nfirm t hat v alve clearance is now
within specification for each valve.
19. If valve clearance is not within specification, repeat
this procedure.
20. If all valve clearance measurements are now within
specification, rem ove the cam shaft car riers an d
proceed to “Camshaft Installation / Timing”.
=
In. / mm.
Intake Valve Clearance (cold):
.005-.007 in. (0.125-0.175 mm)
=
In. / mm.
Exhaust Valve Clearance (cold):
.006-.010 in. (0.152-0.254 mm)
CAUTION
If performing this procedure with the cylinder
head installed on the engine, cover the spark
plug holes and the cam chain opening to prevent
a valve adjustment shim from falling into the
cylinder or crankcase.
=
T
Camshaft Carrier Bolts:
7.5 in. lbs. (10 Nm)
B
Summary of Contents for 2012 RANGER RZR 570
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