Crankshaft Inspection; Connecting Rod Oil Clearance Inspection - Yamaha EF2400iS Service Manual

PISTON, CONNECTING ROD, CRANKSHAFT AND
1
1
1
SVU3670
SVU3680
2
3-39
CRANKCASE

CRANKSHAFT INSPECTION

1. Measure:
9 Crankshaft runout limit
use a dial gauge
Out of specification → Replace.
Runout limit:
0.04 mm (0.0016 in)
2. Inspect:
9 Crankshaft sprocket 1
Crack/damage/wear → Replace the
crankshaft.
3. Measure:
9 Crank pin outside diameter
Use a micrometer.
Out of specification → Replace.
Crank pin outside diameter:
28.0 mm (1.102 in)
Wear limit:
27.9 mm (1.098 in)
CONNECTING ROD OIL CLEARANCE
INSPECTION
NOTE:
Measure the oil clearance if replacing the
crankshaft or connecting rod.
1. Place a piece of Plastigauge 1 on the
crank pin horizontally.
NOTE:
Clean off oil from all parts thoroughly.
2. Install:
9 Connecting rod 1
9 Connecting rod cap 2
12 Nm (1.2 m · kg, 8.7 ft · lb)
NOTE:
Tighten the cap bolts so that the crankshaft
does not move while the oil clearance is being
measured.
ENG