Buell XB 2010, Service Manual

Page: 356 / 714

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sm00187
1. Roller OD cannot be measured to required
accuracy with micrometer (refer to Pinion Shaft
Bearing Selection table)
Figure 3-126. Bearing Roller OD
Table 3-28. Pinion Bearing Roller Specifications
COLOR ROLLER OD
Red Largest
Blue
White (gray)
Green Smallest
Selection
Refer to Table 3-29 . Select bearings using the identification
information given for inner and outer races.
Table 3-29. Pinion Shaft Bearing Selection
BEARING SIZE AS IDENTIFIED BY COLOR CODING OUTER RACE ID FACTORY
STAMPED NO.
Red 1.5654-1.5656 in. (39.761-39.766 mm)
Blue Red 1.5652-1.5654 in. (39.756-39.761 mm)
White-Gray Blue Red 1.5650-1.5652 in. (39.751-39.756 mm) 3
Green White-Gray Blue 1.5648-1.5650 in. (39.746-39.751 mm) 2
Green White-Gray 1.5646-1.5648 in. (39.741-39.746 mm) 1
1.2500-1.2502 in. 1.2498-1.2500 in. 1.2496-1.2498 in. INNER RACE OD (In)
31.750-31.755 mm 31.745-31.750 mm 31.740-31.745 mm
White Green FACTORY COLOR CODE
Replacement
NOTE
If either inner or outer race show wear, measure both races to
confirm correct bearing fit.
1. Use a dial bore gauge to measure and record ID of outer
race. Take four measurements on ID where bearing rollers
ride.
a. If the largest measurement is larger than 1.5656 in.
(39.76 mm) or the required lapping to remove wear
marks would enlarge bore beyond 1.5656 in., continue
at Step 5.
b. If largest measurement is 1.5656 in. (39.76 mm) or
less, cover the cam bearings with masking tape to
prevent debris from entering bearings. Assemble
crankcase halves.
NOTE
The next step requires lapping the outer race. To keep sprocket
shaft and pinion shaft bearings aligned the lap must be sup-
ported by an adaptor or pilot in the left crankcase half.
2. See LAPPING PINION SHAFT BEARING OUTER RACE.
Lap race until all wear marks are removed.
3. Measure and record ID of race at four places.
4. Check measurements against the specifications listed in
Table 3-30 .
a. If lapping increased bore ID to larger than 1.5656 in.
(39.76 mm), go to next step.
b. If roundness or taper do not meet specifications,
continue lapping until specifications are met.
c. If all specifications are met, continue at Step 7 to
remove and size inner race.
Table 3-30. Outer Pinion Race Service Wear Limits
MM IN.
39.8069 1.5672 Largest ID measured
0.0051 0.0002 Roundness of ID
0.0051 0.0002 Taper
5. Press the outer race from the right crankcase.
6. Press new outer race into crankcase flush with inside edge
of cast-in insert.
NOTE
See Figure 3-128 and Figure 3-127 . Dimensions are shown
for fabrication of tools used in pressing the outer race into or
out of crankcase.
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3-88 2010 XB Service: Engine