2006-2008 Polaris Snowmobiles FS/FST Service Manual., Page 168Get this manual
FSFST Engine 31With the cylinder head secured to the crankcase, rotate the engine so the cylinder head is pointed down Starter Motor Installation High Pressure Oil Pump Assembly Installation Valve Lash Adjustment
Timing Chain InstallationLocating TDC
Timing chain installation requires setting the pistons to TDC (Top Dead Center)
32Install the oil pressure relief piston, guide pin, and spring into the fastener boreInsert the fastener with the relief clamp over the guide pinTighten the fastener, then install the remaining lower crankcase fastener33Perform the five-step torque sequence procedure for tightening the cylinder head nuts and lower crank case fastenersThe sequence and torque values are outlined in the torque specification table and sequence illustration at the beginning of this chapter34Rotate the engine to gain access to the PTO shaftSlide the crank seal installation tool over the PTO shaftApply light film of oil to the surface of the toolInstall the crankshaft seal by carefully tapping around the outside circumference of the seal