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9850045 R01 - 2020-2021 RANGER 1000 Service Manual
© Copyright Polaris Inc.
3.3
ENGINE SERVICE SPECIFICATIONS
ENGINE SPECIFICATIONS
TOP END
ITEM STANDARD SERVICE LIMIT
Camshaft
Cam Lobe Height - Intake 2.0257 - 2.0294” (51.45 - 51.55 mm) 2.0237 (51.40 mm)
Cam Lobe Height - Exhaust 2.0257 - 2.0294” (51.45-51.55 mm) 2.0237 (51.40 mm)
Camshaft Journal O.D. - All
1.2572 - 1.2580" (31.933 - 31.954 mm) 1.2568" (31.923 mm)
Camshaft Carrier Bore I.D. - All
1.2598 - 1.2607" (32.000 - 32.021 mm) 1.2615” (32.042 mm)
Camshaft Oil Clearance
0.0018 - 0.0035” (0.046 - 0.088 mm) .0047" (0.119 mm)
Camshaft End Play 0.0049 - 0.0108" (0.125 - 0.275 mm) 0.0157" (0.4 mm)
Cylinder
Cylinder - Surface Warp Limit (cylinder head
surface)
-
.004″ (0.10 mm)
Cylinder Bore - Standard
3.6614 ± .0003" (93.000 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 0.0014 - 0.0026" (0.035 - 0.065 mm)
Cylinder
Head
Cylinder Head - Surface Warp Limit
-
0.0039″ (0.1 mm)
Cylinder Head - Standard Height 4.5783" (116.29 mm)
-
Valve
Valve Lash (Cold) - Intake 0.006 in (0.15 mm) ± 0.002 (0.05 mm)
Valve Lash (Cold) - Exhaust 0.010 in (0.25 mm) ± 0.002 (0.05 mm)
Valve Stem Diameter - Intake
0.2731 - 0.2737" (6.938 - 6.953 mm)
-
Valve Stem Diameter - Exhaust
0.2724 - 0.2730" (6.918 -6.953 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 4.0256” (102.25 mm)
-
Valve Stem Overall Length - Exhaust 4.0280” (102.31 mm
-
Valve
Guide
Valve Guide Inner Diameter
0.2741 - 0.2747" (6.963 - 6.978 mm)
-
Valve Seat
Valve Seat - Contacting Width - Intake 0.0591 ± 0.0039" (1.5 ± 0.10 mm) 0.0748" (1.9 mm)
Valve Seat - Contacting Width - Exhaust 0.0787 ± 0.0039“ (2.0 ± 0.10 mm) 0.0945" (2.4 mm)
Valve Seat Angles
30.0° ± 1.5°
-
45.0° ± 0.5°
-
60.0° ± 1.5°
-
ENGINE / COOLING / EXHAUST
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