3-46 2002 Buell S3T: Engine
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PINION SHAFT BUSHING IN GEARCASE COVER
1. See Figure 3-59. Using an arbor press, install pinion
shaft bushing (16) in its gearcase cover (17) so that
bushing is flush with cover boss. There is no need to ori-
ent this particular bushing in any specific position of rota-
tion within the gearcase cover bore.
2. Although the original pinion shaft bushing is not “pinned,”
the replacement bushing must be secured, from possible
rotation within the cover bore, by installation of a dowel
pin. See Figure 3-65. Drill a No. 31 hole, 0.281 in.
(7.137 mm) deep, at top side of boss (side toward top of
gearcase cover), centering the drill bit on the cover bore
circle (hole is drilled half in bushing OD and half in cover
bore ID).
3. Drive a new dowel pin no more than 0.20 in. (5.08 mm)
below the bushing face. Carefully peen edges of hole to
lock the pin in place.
4. After you install a new bushing in gearcase cover, line-
ream the bushing to the correct size. See BUSHING
REAMING.
Bushing Reaming
NOTE
● Installing and reaming crankcase and gearcase cover
bushings may alter the center distances between mating
gears and may result in an increase in gear noise. For
quiet-running gears, the gears should be matched to the
center distances.
● Bushings in right crankcase half serve as pilots for ream-
ing gearcase cover bushings and must, therefore, be
reamed to size first.
● After reaming any bushing, check shaft fit in the bushing.
It may be necessary to make a second pass with reamer
to attain proper fit.
CAM GEAR BUSHINGS IN
RIGHT CRANKCASE HALF
1. Separate two halves of crankcase, if not already accom-
plished. Place right crankcase half on flat surface with
gearcase side upward. Bushing to be reamed must be
oriented as shown in Figure 3-64.
2. See Figure 3-66. Position CAMSHAFT BUSHING
REAMER PILOT (Part No. HD-38871) onto gearcase
side of crankcase half; upper right and lower left indexing
holes in pilot must be placed over dowels in crankcase
half. Insert two bolts (supplied with pilot) through two
remaining holes in pilot, and into threaded holes of
crankcase half. Tighten bolts securely.
3. Insert the 11/16 in. diameter reamer through pilot hole
and into bushing while turning reamer clockwise. Con-
tinue turning reamer clockwise through bushing until
smooth shank of reamer passes through hole in pilot.
4. Detach reamer from handle. Pull reamer out opposite
side of crankcase half.
5. Thoroughly clean right crankcase half, removing all
metal chips/shavings. Blow out all oil passages using
compressed air.
Figure 3-63. Rear Intake Cam Gear Bushing
Installed in Gearcase Cover
Slot
Drill 5/32 in.
(3.97 mm)
1. Rear Intake Cam Gear Bushing
2. Gearcase Cover
xlh0355
Figure 3-64. Cam Gear Bushing Installed in Crankcase
Figure 3-65. Drilling Dowel Pin Hole
1. Cam Gear Bushing
2. Right Crankcase Half
Oiling slot must be at
12 o’clock position
b0089x3x
1
2
Replacement Bushing
requires dowel pin hole
3319a
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