Inspection - Yamaha SRX700D Service Manual

OIL PUMP, CRANKCASE AND CRANKSHAFT
2 2
4
3
SDN5370
SDN5380
1
3
SDN5390
5-19

INSPECTION

1. Measure:
•
Runout
Use the V-blocks and a dial gauge.
Out of specification → Replace or repair the
crankshaft.
Dial gauge:
90890-03097, YU-03097
Runout limit:
C : 0.03 mm (0.0012 in)
1
C ~ C : 0.04 mm (0.0016 in)
2 5
C : 0.03 mm (0.0012 in)
6
a
89.5 mm (3.52 in)
b
84.5 mm (3.33 in)
2. Measure:
•
Small end freeplay a
Use the dial gauge.
Out of specification → Replace the defective
parts.
Small end freeplay a:
0.8 ~ 1.0 mm (0.03 ~ 0.04 in)
•
Big end side clearance b
Use the feeler gauge.
Out of specification → Replace the defective
parts.
Big end side clearance b:
0.25 ~ 0.75 mm (0.01 ~ 0.03 in)
3. Inspect:
•
Crankshaft bearings 1
Pitting/damage → Replace.
•
Stopper rings 2
Bends/damage → Replace.
•
Crankshaft oil seals 3
•
Impeller drive gear teeth 4
Wear/damage → Replace.
CAUTION:
Lubricate the bearings immediately after exam-
ining them in order to prevent rust.
ENG