Arctic Cat 660 cc, Руководство по обслуживанию, Страница: 59 / 396

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MD1573
4. Remove the lower crankcase-to-upper crankcase
mounting cap screws; then carefully separate the
crankcase halves.
5. Using the scale supplied with the plastigauge,
verify that the oil clearance for each is 0.020-0.040
mm (0.00078-0.00157 in.) with a maximum limit
of 0.065 mm (0.00256 in.). Remove the
plastigauge; then clean the bearings and crankshaft
journals.
MD1566
6. After cleaning, return the upper crankcase half to
the upside-down position on the workbench.
AO318
„
NOTE: Make sure the tabs and the oil holes in
the bearings are still aligned with the notches and
oil passages in the upper and lower crankcase
halves.
7. Install the half bearings; then lubricate the lower
crankcase half bearing faces liberally with engine
oil taking care not to get oil on the crankcase
bearing journals.
AO319
„
NOTE: Take care not to get sealant on the bear-
ing surfaces. Sealant should be at least 3 mm (0.12
in.) from the bearing surfaces.
AO319A
8. Lubricate the lips of the crankshaft seal with
grease and install the crankshaft seal over the PTO
end of the crankshaft with the spring side of the
seal directed toward the crankshaft.
9. Install the crankshaft into the crankcase. Lubricate
the thrust bearings with engine oil; then with the
grooved side of the bearing facing toward the
crankshaft, insert each bearing and roll it into
place.
„
NOTE: To install the opposite end thrust bearing,
push the crankshaft towards the bearing just
installed; then install the bearing for that journal.
Continue this procedure until all thrust bearings
are installed.