l
Check the pin piston bore ID of piston for wear.
(Fig. 3.92)
Inside micrometer
Service limit
15.030 mm (max)
l
If the ID is more than the service limit, replace
the piston with a new.
Piston pin
l
Check the piston pin OD using a micrometer.
(Fig. 3.93) If the reading exceeds the service
limit replace the pin piston. Other wise the pin
may create unwanted noise.
Outside micrometer
Service limit
14.992 mm (min)
Rings piston
l
Inspect the piton rings for distortion, it will
cause the rings to stick or roll in the grooves.
Replace the distorted rings.
l
As the rings wear out, its end gap increases
resulting in reduced engine power output.
l
The rings (Top and 2nd) closed end gap should
be checked to assess the serviceability of the
ring piston.
l
Install the ring in the cylinder block, using the
piston, push the ring into the cylinder block
bore at 20 mm from the bottom. This will make
the ring to seat squarely in the cylinder block.
Using a feeler gauge measure the close end
gap. (Fig. 3.94)
l
If the gap exceeds the limit, replace rings with
new ones.
Feeler gauge
Service limit
0.700 mm (max)
3-28
TVS APACHE RTR 200
SERVICE MANUAL
SERVICING OF ENGINE
Fig. 3.92
Dia.
Fig. 3.93
Fig. 3.94
FEELER GAUGE
PISTON RING
