Crankshaft Oil Seal / Bearing Inspection - Suzuki RMX450Z Service Manual

Conrod Big End Side Clearance
Push the big end of the conrod to one side and measure
the side clearance using a thickness gauge. If the
clearance exceeds the service limit, replace the
crankshaft assembly with a new one or bring the
deflection and the side clearance within the service limit
by replacing the worn parts (conrod, big end bearing,
crank pin, etc.) with new ones.
Special tool
(A): 09900–20803 (Thickness gauge)
Conrod big end side clearance
Service limit: 1.0 mm (0.04 in)
Crankshaft Runout
Support the crankshaft using V-blocks and measure the
crankshaft runout using the dial gauge, as shown. If the
runout exceeds the service limit, replace the crankshaft
with a new one.
NOTE
• Place the crankshaft onto the V-blocks so
that it becomes horizontally.
• Measure the runout from the tips of the
crankshaft.
Crankshaft runout
Service limit: 0.08 mm (0.003 in)
Special tool
(A): 09900–20607 (Dial gauge (1/100 mm, 10
mm))
: 09900–20701 (Magnetic stand)
: 09900–21304 (V-block (100 mm))
(A)
(A)
I705H1140146-02
(A)
IA02J1140101-01
Crank Web to Web Width
Measure the width between crankshaft webs "a".
Width between crankshaft webs "a"
Standard: 61.9 – 62.1 mm (2.437 – 2.445 in)

Crankshaft Oil Seal / Bearing Inspection

Refer to "Engine Bottom Side Disassembly" (Page 1D-
51) and "Engine Bottom Side Assembly" (Page 1D-55).
Oil Seal
Inspect the oil seal lips for wear or damage. If any
defects are found, replace the oil seal with new ones.
Refer to "Crankshaft Oil Seal / Bearing Removal and
Installation" (Page 1D-63) and "Crankshaft Oil Seal /
Bearing Removal and Installation" (Page 1D-63).
Engine Mechanical:
" a "
IA02J1140102-01
BA02J21406040
IA02J1140103-01
IA02J1140104-01
1D-62