POWER UNIT 6-37
Conrod big end width
Crank pin width
21.95 – 22.00 mm
22.10 – 22.20 mm
(0.864 – 0.866 in)
(0.870 – 0.874 in)
CONROD / CRANKSHAFT / CRANKCASE
Conrod big end side clearance
Measure the conrod big end side clearance with the conrod in-
stalled on the crank pin as shown.
$
09900-20803: Thickness gauge
Standard
: 0.10 – 0.25 mm (0.004 – 0.010 in)
Service limit: 0.35 mm (0.014 in)
If the measurement exceeds the service limit, replace the conrod
and/or the crankshaft.
Standard:
$
09900-20205: Micrometer
09900-20605: Dial calipers
Crank pin outside diameter / difference
Measure the crank pin outside diameter in the thrust and axial
directions at the two positions as shown.
Check for the followings:
• Difference of the measurements at the two positions. (Taper)
• Difference between the thrust and axial measurement. (Out-
of-round)
$
09900-20202: Micrometer
Service limit: 0.010 mm (0.0004 in)
If the measurement exceeds the service limit, replace the crank-
shaft.
Crank pin outside diameter:
Standard: 41.982 – 42.000 mm (1.6528 – 1.6535 in)
Conrod bearing condition
If pitting, flaking, burn or excessive wear is found, replace the
conrod bearing.
