2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 103Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 103

ENGINE 7The Water Pump Install Kit (PN 5131135) is required to install the new mechanical sealThis tool is available separately
top railNOTE: The top rail has locating tab to prevent rotationThe tab must be positioned in the notch on the side of the
piston as shown (C) One Way Valve Installation Install the one way valve plunger, spring, and plug using new sealing washerOne
Way Valve Plug Torque: 16 ftlbs(22 Nm) Cam Chain Drive Sprocket Installation 1Install the Woodruff key, drive sprocket (B),
and slotted nut (A)Tighten the nut to the specified torqueB A Tighten Slotted Nut Torque: 35-51 ftlbs(4.71-6.86 kg-m) 3Install
the bottom rail with the gap at least 30o from the end of the expander on the side opposite the top rail gap4Install the
second ring with the "R" mark facing upPosition the end gap toward the rear (intake) side of the piston Tensioner Blade Installation