Polaris 2014 Sportsman 570 EPS Forest - Engine Service Specifications; Engine Specifications

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3.7
9924871 R03 - 2014 Polaris Sportsman® 570 EFI Service Manual
© Copyright 2013 Polaris Sales Inc.
ENGINE SERVICE SPECIFICATIONS
Engine Specifications
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
Contacting Width - Intake (Standard)
0.0393" ± 0.0039"
(1.0 ± 0.10 mm)
Contacting Width - Intake (Service Limit)
0.0551"
(1.4 mm)
Contacting Width - Exhaust(Standard)
0.0590" ± 0.0039"
(1.5 ± 0.10 mm)
Contacting Width - Exhaust (Service Limit)
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
0.006" ± 0.002"
(0.152 ± 0.050 mm)
Valve Lash (Cold) - Exhaust
0.008" ± 0.002"
(0.203 ± 0.050 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 Free Length (Standard)
1.7263”
(43.85 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)
ENGINE