Yamaha VX700F Manuel D'atelier page 346

OIL PUMP, CRANKCASE AND CRANKSHAFT
SCH5400
SCH5410
SCH5420
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
Maximum runout:
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
90 mm (3.54 in)
b
85 mm (3.35 in)
2. Measure:
•
Small end free play a
Use the dial gauge.
Out of specification → Replace the defective
parts.
Small end free play: a
0.8 ~ 1.0 mm (0.03 ~ 0.04 in)
•
Big end side clearance b
Use the thickness 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 bearing 1
Pitting/damage → Replace.
•
Stopper ring 2
Bends/damage → Replace.
•
Crankshaft oil seals 3
•
Impeller drive gear teeth 4
Wear/damage → Replace.
CAUTION:
Lubricate the bearings immediately after examin-
ing them in order to prevent rust.
5-18
ENG