3.18
ENGINE
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
ENGINE DISASSEMBLY
Cam Chain Tensioner / Rocker Arm /
Camshaft Removal
1.
Remove ignition timing inspection plug from recoil
housing.
To position crankshaft at Top Dead Center (TDC) on
compression stroke:
2.
Rotate engine slowly in the direction of rotation
watching intake valves open and start to close.
3.
Continue to rotate engine slowly, watching camshaft
sprocket marks and the mark in the timing inspection
hole.
4.
Align single (TDC) mark on flywheel with projection in
inspection hole, and the cam sprocket pin (facing
upward) aligned with the camshaft to crankshaft
center line.
NOTE: The cam lobe should be pointing down and
valves should have clearance at this point.
5.
Remove cam chain tensioner plug, sealing washer,
and spring.
CAUTION:
The plug is under spring
tension. Maintain inward pressure while removing.
6.
Remove the two 6x25 mm cam chain tensioner flange
bolts.
7.
Tap lightly on tensioner body with a soft face hammer
and remove tensioner.
Cam Chain Tensioner Inspection
1.
Pull cam chain tensioner plunger outward to the end
of its travel. Inspect teeth on ratchet pawl (A) and
plunger teeth (B) for wear or damage.
2.
Push ratchet pawl and hold it. The plunger should
move smoothly in and out of the tensioner body.
3.
Release ratchet pawl and push inward on plunger. It
should remain locked in position and not move inward.
TDC “T” Mark
Rotation
Advance Marks
B
A
Содержание 2012 Sportsman Forest 500 International
Страница 1: ...1 GENERAL 2 MAINTENANCE 3 ENGINE 4 FUEL SYSTEMS 5 BODY SUSPENSION...
Страница 2: ...6 CLUTCH 7 FINAL DRIVE 8 TRANSMISSION 9 BRAKES 10 ELECTRICAL...
Страница 3: ...NOTES...
Страница 115: ...NOTES ENGINE 3 60...
Страница 116: ...FUEL SYSTEM 4 1 CHAPTER 4 FUEL SYSTEM 4 CARBURETION SYSTEM 4 3 ELECTRONIC FUEL INJECTION SYSTEM EFI 4 25...
Страница 117: ...4 2 FUEL SYSTEM...
Страница 139: ...NOTES CARBURATION AND FUEL SYSTEM 4 24...
Страница 185: ...NOTES 500 EFI FUEL SYSTEM 4 70...
Страница 212: ...NOTES...
Страница 258: ...NOTES CLUTCHING 6 46...
Страница 330: ...NOTES TRANSMISSION 8 24...
Страница 392: ...10 28 ELECTRICAL 9923412 2012 Sportsman 400 500 and EFI Tractor Service Manual Copyright 2011 Polaris Sales Inc...
Страница 424: ...NOTES ELECTRICAL 10 60...
Страница 425: ...Located By Battery...
Страница 426: ......
Страница 427: ...Located By Transmission Breakout Resistor Module...
Страница 428: ......
Страница 429: ...Located By Battery...
Страница 430: ......
Страница 431: ...Located By Transmission Breakout Resistor Module...
Страница 432: ......