Page 217 - Manual Oficina Polaris Sportsman 570 2014 a 2016

ENGINE / COOLING SYSTEM

CAMSHAFT / CYLINDER HEAD / CYLINDER (IN. / MM)
3.8976" ± 0.0003"
Cylinder Bore - Standard
(99.0 mm ± 0.008 mm)
0.001"
Cylinder Out of Round Limit
(0.025 mm)
0.001"
Cylinder Taper Limit
(0.025 mm)
0.00019" - 0.00216"
Cylinder to Piston Clearance
(.005 - .055 mm)
PISTON / RINGS / CONNECTING ROD / CRANKSHAFT / BALANCE SHAFT (IN. / MM)
3
Piston - Standard O.D. -
3.8957” - 3.8968”
Measured 90 degrees to pin, (98.953 - 98.980 mm)
0.47 in. (12 mm) up from piston skirt.
See text.
Piston 0.8662” - 0.8665”
Piston Pin Bore I.D. (Standard)
(22.004 - 22.010 mm)
0.8677"
Piston Pin Bore I.D. (Service Limit)
(22.042 mm)
0.8659" - 0.8661"
Piston Pin O.D. (Standard)
Piston Pin (21.995 - 22.000 mm)
Piston Pin O.D. (Service Limit) 0.8651" (21.975 mm)
Top Ring 0.0059" - 0.0122"
(Standard) (0.15 - 0.31 mm)
Top Ring
0.0137" (0.35 mm)
(Service Limit)
Second Ring 0.0094" - 0.0196"
(Standard) (0.24 - 0.50 mm)
Installed Gap
Second Ring 0.0220" (0.56 mm)
(Service Limit)
Oil Control Rails 0.0098" - 0.0401"
(Standard) (0.25 - 1.02 mm)
Piston Ring
Oil Control Rails 0.0480"
(Service Limit) (1.22 mm)
Top Ring 0.0011" - 0.0037"
(Standard) (0.030 - 0.095 mm)
Top Ring 0.0042"
(Service Limit) (0.108 mm)
Ring to Groove
Clearance Second Ring 0.0007" - 0.0029"
(Standard) (0.020 - 0.076 mm)
Second Ring 0.0035"
(Service Limit) (0.089 mm)
Small End I.D. 0.8665" - 0.8670"
(Standard) (22.010 - 22.023 mm)
Small End I.D. 0.8682"
Connecting Rod
(Service Limit) (22.053 mm)
See Service Procedure
Big End I.D.
Listed In This Chapter
Main Journal O.D. 1.6137"
(Service Limit) (40.990 mm)
Crankshaft
Crankshaft Runout Limit See Service Procedure
(PTO and MAG) Listed In This Chapter
Bearing Journal O.D. 1.1798” - 1.1802"
Balance Shaft
(Standard) (29.969 - 29.979 mm)

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 3.95
© Copyright Polaris Industries Inc.