Crankshaft Inspection - Suzuki GF60A Service Manual

4) From number stamped on conrod and its cap and
numbers stamped on crank web No.2, 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 number stamped on crank web No.2 is
"2", install the bearing painted "Black" as a new
standard bearing to conrod big end.
Matching chart of conrod bearing
Number stamped on conrod and its
1
Number 1 Green
stamped 2 Black
on crank
web No.2
3 Nothing
(Crank pin
diameter)
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-55)

Crankshaft Inspection

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)
: 09900–20701 (Magnetic stand)
Crankshaft runout
Service limit: 0.04 mm (0.002 in.)
cap (Big end diameter)
2 3
Black Nothing
Nothing Yellow
Yellow Blue
ZAJ6111406026
(A)
IAJ611140222-01
Power Unit Mechanical:
Crankshaft Thrust Play
1) Measure thrust play with crankshaft, journal bearing
and crankcase / cylinder block assembled in a
normal manner.
Tighten crankcase bolts to specified torque.
Tightening torque
Crankcase bolt (Inside 10 mm): 46 N·m (4.6 kgf-
m, 33.3 lbf-ft)
Crankcase bolt (Outside 8 mm): 25 N·m (2.5 kgf-
m, 18.0 lbf-ft)
2) Use a dial gauge to read displacement in axial
(thrust) direction of crankshaft.
If measurement exceeds service limit, replace
crankshaft and/or cylinder assembly.
Crankshaft thrust play
Standard: 0.11 – 0.31 mm (0.004 – 0.012 in.)
Service limit: 0.35 mm (0.014 in.)
1D-59
IAJ611140223-02