Yamaha F100D - Checking the Crankshaft; Checking the Crankpin Oil Clearance

6D93G11
5-44
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Checking the crankshaft
1. Measure the crankshaft journal diameter
a
, crankpin diameter
b
, and crankpin
width
c
. Replace the crankshaft if out of
specification.
2. Measure the crankshaft runout. Replace
the crankshaft if above specification.
Checking the crankpin oil clearance
1. Clean the bearings and the connecting
rod.
Connecting rod big end side
clearance
a
:
0.14–0.28 mm (0.0055–0.0110 in)
Crankshaft journal diameter
a
:
47.985–48.000 mm
(1.8892–1.8898 in)
Crankpin diameter
b
:
43.982–44.000 mm
(1.7316–1.7323 in)
Crankpin width
c
:
21.00–21.07 mm
(0.8268–0.8295 in)
Crankshaft runout limit:
0.03 mm (0.0012 in)
S6D85590
Cylinder block