ENGINE COMPONENTS - INSPECTION
Bearings
l
Wash bearings with a cleaning solvent and
lubricate them with engine oil before
inspecting.
l
Inspect the play of each bearing before fixing it.
Hold inner race and rotate the outer race by
hand and observe for any abnormal noise and
smooth rotation. Replace bearing with a new
one if found defective. (Fig. 3.168)
Note:
Do not use compressed air to clean the
bearings.
Oilseal
l
Damage to the oil seal lip (A) may result in
leakage of oil. Inspect the oilseals for the
damage of lip and always replace oilseals with
the new ones during reassembly. (Fig. 3.169)
Crankshaft assembly - runout
l
Support crankshaft assembly with ‘V’ blocks or
anvil. Mount the dial indicator at positions
shown to read the runout. Runout should be
within the service limit. (Fig. 3.170)
l
Excessive runout of crankshaft assembly
causes abnormal engine vibration and bearing
noises. Such vibration shortens the engine life.
V - block set (4“x3“x3“)
Dial gauge (1/100 mm)
Magnetic stand
Service limit
0.100 mm (max)
Condition of the big end bearing - crankshaft
assembly
l
Measure big end wear of connecting rod by the
deflection of small end. If deflection exceeds
the limit, replace the crankshaft assembly with
a new one. (Fig. 3.171)
Service limit
3 mm (max)
Fig. 3.168
Fig. 3.169
PLAY
PLAY
TVS APACHE RTR 200
SERVICE MANUAL
SERVICING OF ENGINE
3-49
A
Fig. 3.170
Fig. 3.171
