Polaris 2012 RANGER RZR 570 INTL User Manual

3.6
ENGINE / COOLING SYSTEM
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
ENGINE SERVICE SPECIFICATIONS
Engine Specifications - 1204286 RZR570HO-11
CAMSHAFT / CYLINDER HEAD / CYLINDER (IN. / MM)
Camshaft
Cam Lobe Height - Intake 1.5704" ± 0.0038" (39.89 ± 0.097 mm)
Cam Lobe Height - Exhaust 1.5405" ± 0.0038" (39.13 ± 0.097 mm)
Camshaft Journal O.D. - All (Standard) 0.9029" - 0.9037 " (22.933 - 22.954 mm)
Camshaft Journal O.D. - All (Service Limit) 0.9025" (22.923 mm)
Camshaft Journal Bore I.D. - All (Standard) 0.9055" - 0.9063" (23.000 - 23.021 mm)
Camshaft Journal Bore I.D. - All (Service Limit) 0.9072" (23.044 mm)
Camshaft Oil Clearance (Standard) 0.0018" - 0.0034" (0.046 - 0.088 mm)
Camshaft Oil Clearance (Service Limit) 0.0047" (0.121 mm)
Camshaft End Play (Standard) 0.0069" - 0.0128" (0.175 - 0.325 mm)
Camshaft End Play (Service Limit) 0.0157" (0.4 mm)
Cylinder Head
Cylinder Head - Surface Warp Limit 0.0024" (0.060 mm)
Cylinder Head - Standard Height 4.745" ± 0.0020" (120.53 ± 0.05 mm)
Valve Seat
Valve Seat - Contacting Width - Intake (Standard) 0.0393" ± 0.0039" (1.0 ± 0.10 mm)
Valve Seat - Contacting Width - Intake (Service
Lim
i
t)
0.0551" (1.4 mm)
Valve Seat - Contacting Width - Exhaust (Standard) 0.0590" ± 0.0039" (1.5 ± 0.10 mm)
Valve Seat - Contacting Width - Exhaust (Service
Lim
i
t)
0.0748" (1.9 mm)
Valve Seat Angles 30.0° ± 1.5° / 45.0° ± 0.5° / 60.0° ± 1.5°
Valve Guide Valve Guide Inner Diameter 0.2165" - 0.2171" (5.500 - 5.515 mm)
Valve
Valve Lash (Cold) - Intake 0.005" - 0.007" (0.125 - 0.175 mm)
Valve Lash (Cold) - Exhaust 0.00
6"
- 0.010" (0.152 - 0.254 mm)
Valve Stem Diameter - Intake 0
.2155" - 0.2161" (5.475 - 5.490 mm)
Valve Stem Diameter - Exhaust 0.2147" - 0.2153" (5.455 - 5.470 mm)
Valve Stem Oil Clearance - Intake 0.0003" - 0.0015" (0.010 - 0.040 mm)
Valve Stem Oil Clearance - Exhaust 0.0011" - 0.0023" (0.030 - 0.060 mm)
Valve Stem Overall Length - Intake 3.7704" (95.77 mm)
Valve Stem Overall Length - Exhaust 3.7964" (96.43 mm)
Valve Spring
Valve Spring Free Length (Standard) 1.7263" (43.85 mm)
Valve Spring Free Length (Service Limit) 1.683" (42.75 mm)
Cylinder
Cylinder - Surface Warp Limit
(mating with cylinder head)
0.00098" (0.025 mm)
Cylinder Bore - Standard 3.8976" ± 0.0003" (99.0 mm ± 0.008 mm)
Cylinder Out of Round Limit 0.001" (0.025 mm)
Cylinder Taper Limit 0.001" (0.025 mm)
Cylinder to Piston Clearance 0.00019" - 0.00216" (.005 - .055 mm)

Polaris 2012 RANGER RZR 570 INTL Specifications

General

Brand	Polaris
Model	2012 RANGER RZR 570 INTL
Category	Offroad Vehicle
Language	English