Connecting Rod Oil Clearance Inspection - Yamaha EF3000iSE Service Manual

PISTON, CONNECTING ROD, CRANKSHAFT AND
CRANKCASE
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
crankshaft pin horizontally.
NOTE:
SVU3680J
Clean off oil from all parts thoroughly.
2. Install:
• Connecting rod 1
• Connecting rod cap 2
NOTE:
Tighten the cap bolts so that the crankshaft
does not move while the oil clearance is being
measured.
SVU3690J
Connecting rod cap bolt:
3. Remove:
• Connecting rod cap
• Connecting rod
4. Measure:
• Widest portion of the pressed Plasti-
gauge
Out of specification → Replace crank-
shaft or connecting rod, and then mea-
SVU3700J
sure the clearance again.
Connecting rod big end oil clear-
ance:
Wear limit:
3-42
ENG
12 Nm (1.2 m · kg, 8.7 ft · lb)
0.015 ~ 0.040 mm
(0.0006 ~ 0.0016 in)
0.1 mm (0.0039 in)