Crankshaft End Play - Polaris 1999 Sportsman 400 Service Manual

ENGINE
L O WE I~
END
165
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11 01
availab le to perform
this
proce-
dure, take the components to a Po-
laris dealers hip.
This procedure is necessary to determine the
COf-
rect shim thickness required to establish the
COITect
end play within the crankcase for the crankshaft,
balance shaft and oil pump shaft. This is accom-
plished
by
acc urate ly measu ring the distance be-
twe en the inner races of the bearings for each
specific shaft asse mbly.
Cranks haft end pia)'
I. Make ce rtain the cra nkshaft bearings (A. Figu re
111)
arc fully seated in bot h cra nkcase halves.
2. Measur e the thickn ess of the straightedge as
shown in Fig ure 112. T his di men sion will be used
in the following steps.
3. Usc a dia l vern ier ca liper and measure the width
of the crankshaft, incl uding the ba lancer gea r, at the
mac hined sur faces
where
it rides
on
the bearing
in-
ner race (Figure 113). Record this measur ement.
4. Position a stra ightedge across the sea ling surface
of the left -han d crankcase half.