2005-2007 Polaris Ranger 500 service manual, Page 69Get this manual
ENGINE Crankshaft Straightening
Lubricate the bearings and clamp the crankshaft securely in the Crankshaft Truing Stand (PN 2870569)Refer to the illustrations belowCrankshaft Truing Stand (PN 2870569) NOTE: The rod pin position in relation to the dial indicator position tells you what action is required to straighten the shaft1To correct situation like the one shown in the illustration below, strike the shaft at point with brass hammerHIGH .004 (.1 mm) HIGH .004 (.1 mm)
EXAMPLE OF CROSS HATCH PATTERN finished cylinder should have cross-hatch pattern to ensure piston ring seating and to aid in the retention of the fueloil mixture during initial break inHone cylinder according to hone manufacturer's instructions, or these guidelines: Use motor speed of approximately 300-500 RPM, run the hone in and out of the cylinder rapidly until cutting tension decreasesRemember to keep the hone drive shaft centered (or cylinder centered on arbor) and to bring the stone approximately 12" (1.3 cm) beyond the bore at the end of each stroke Release the hone at regular intervals and inspect the bore to determine if it has been cleared, and to check piston fitNOTE: Do not allow cylinder to heat up during honingThe thinner areas of the liner around the ports will expand causing uneven bore After honing has been completed inspect all port opening areas for rough or sharp edgesApply slight chamfer to all ports to remove sharp edges or burrs, paying particular attention to the corners of the intake and exhaust ports