Chapter 3. Reassembling; Crankshaft Ass'y - Yamaha SL292C 1971 Service Manual

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REASSEMBl:JING -
Crankshaft Ass'y
CHAPTER 3. REASSEMBLING
CRANK & PISTON
13
18
14
Fig.3-1
Ref. No. Description O'ty
0-1 CRANK ASS'Y 1
1 CRANK, left 1
2
CRANK, right
1
3 ROD , connecting 1
4 BEAR IN G, con -rod big end 1
5
WASHER, crank pin (24.2-38-1.0)
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2
6 Pl N, crank 1
7 BUSH IN G, pin cra nk
2
8
BEARING, con-rod small end
1
9
PISTON U.R 1
3-1 CRANKSHAFT ASS'Y
3-1-1
After removal of the crankshaft, wear of the connecting rod
big end, crank pin and bearing should be checked .
Excessive wear of the connecting rod big end is checked by
measuring the axial play of the connecting rod small end
when it is moved from side to side with your fingers. The
axial play should not exceed 0.080'' (2 mm).
After the crank pin and bearing are replaced, maximum
axial play should not exceed 0.032,..., 0.04'' (0.8,..., 1.0 mm).
Ref. No.
10
11
12
13
14
15
16
17
18
Fig. 3-2
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Description O'ty
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PISTON RING
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PIN, piston
1
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CL IP, piston pin
1 1
2
SH IM, crank (32.2 44-0.2)
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U.R
BEARING (B6306 special) 2
Cl RCLIP ( R-72)
1
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01
L SEAL {SW-32-72-10) 1
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KEY, woodruff
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1
01
L SEAL (SW-32-48-10)
1
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