Crankshaft Inspection; Connecting Rod Oil Clearance Inspection - Yamaha EF2000iS Manuel D'atelier

PISTON, CONNECTING ROD, CRANKSHAFT AND
a
1
1
2
1
3-40
CRANKCASE

CRANKSHAFT INSPECTION

1. Inspect:
9 Crankshaft sprocket 1
Crack/damage/wear → Replace the
crankshaft.
2. Measure:
9 Crankshaft runout limit
Use a dial gauge
Out of specification → Replace.
Runout limit:
0.04 mm (0.0016 in)
3. Measure:
9 Crank pin outside diameter
Use a micrometer.
Out of specification → Replace.
Crank pin outside diameter:
21.969 – 21.985 mm
(0.8649 – 0.8655 in)
Wear limit:
21.939 mm (0.8637 in)
CONNECTING ROD OIL CLEARANCE
INSPECTION
TIP
Measure the oil clearance if replacing the
crankshaft or connecting rod.
1. Place a piece of Plastigauge 1 on the
crank pin horizontally.
TIP
Clean off oil from all parts thoroughly.
2. Install:
9 Connecting rod 1
9 Connecting rod cap 2
9 Nm (0.9 m · kgf, 6.6 ft · lbf)
TIP
Tighten the cap bolts so that the crankshaft
does not move while the oil clearance is being
measured.
ENG
a