1990-1998 Arctic Cat Snowmobiles Repair Manual, Page 206Get this manual
196 CAUTION It is important that the bearings and seals are properly aligned with the pins and grooves, before continuing assemblyThe lower half of the crankcase cannot be installed until the crankshaft, seals and bearings are completely seated in the upper halfAttempting to force the parts into place will damage the parts
CHAPTER FIVE
7Make sure the case halves mate properly before installing the retaining screwsIf gap remains between the cases, make sure the bearing outer races are properly aligned with their locating pins, before continuing assemblyThe crankcase halves will not fit together until the bearings are completely seatedAny attempt to force the case halves together will damage the parts8Install the crankcasebolts and tighten by hand
8Recheck Steps 7A, 7B or 7C before proceeding with assembling the crankcaseCrankcase Assembly 1Install the crankshaft in one of the crankcase halves as described in this chapter2Oil the crankshaft gear and the bottom end bearings with two-stroke oil3If removed, install the two dowel pins in the crankcase4Make sure the crankcase mating surfaces are completely clean and dry5Apply RTV High Temperature Sealant (part no0636-069) to the entire mating surface of the crankcase half6Position the other crankcase half onto the crankshaft and the other case halfIf the lower crankcase half is being assembled onto the crankshaft and upper case half, make sure the gear on the coolant pump and oil injection pump driveshaft (Figure 103) meshes properly with the crankshaft center gear (Figure 102)