1D-57 Power Unit Mechanical:
4) From number stamped on conrod and its cap and
alphabets stamped on crank web No.1, Determine
new standard bearing to be installed into conrod big
end, by referring to the table.
For example, if number stamped on conrod and its
cap is “1” and alphabet stamped on crank web No.1
is “B”, install the bearing painted “Black” as a new
standard bearing to conrod big end.
Matching chart of conrod bearing
NOTE
Measure conrod big end oil clearance again
after installing new bearing selected.
Refer to “Conrod Big End Oil Clearance”
under “Crank Pin and Conrod Bearing
Inspection” (Page 1D-54)
Crankshaft Inspection
Z9J0111406024
Crankshaft Runout
Using a dial gauge, measure runout at center journal.
If measurement exceeds service limit, replace
crankshaft.
Special tool
(A): 09900–20606 (Dial gauge)
(B): 09900–20701 (Magnetic stand)
Crankshaft runout
Service limit: 0.04 mm (0.0016 in.)
Crankshaft Thrust Play
1) Measure thrust play with crankshaft, thrust bearing,
journal bearing and crankcase / cylinder block
assembled in a normal manner.
Tighten crankcase bolts to specified torque.
Tightening torque
Crankcase bolt (Inside 10 mm): 52 N·m (5.2 kgf-
m, 37.5 lbf-ft)
Crankcase bolt (Outside 8 mm): 25 N·m (2.5 kgf-
m, 18.1 lbf-ft)
2) Use a dial gauge to read displacement in axial
(thrust) direction of crankshaft.
If measurement exceeds service limit, replace
crankshaft thrust bearing.
Crankshaft thrust play
Standard: 0.11 – 0.31 mm (0.0043 – 0.0122 in.)
Service limit: 0.35 mm (0.0138 in.)
Crankshaft thrust bearing thickness
Standard: 2.47 – 2.52 mm (0.0972 – 0.0992 in.)
“F”: Color mark
Number stamped on conrod and its
cap (Big end diameter)
123
Alphabet
stamped
on crank
web No.1
(Crank pin
diameter)
A Green Black Nothing
B Black Nothing Yellow
C Nothing Yellow Blue
“F”
I9J011140268-01
(A)
(B)
I9J011140257-02
I9J011140258-02
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