Joyner TROOPER T2, Руководство пользователя

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4.2. Piston
4.2.1. Check the clearance between the piston
pinholes.
Use a caliper to measure the positions of the
piston shown in the following figure, with the
maximum value as the size of the piston pin
diameter.
4.2.2. Use the inner diameter centimeter to
measure the positions of the piston hole
diameter shown as the following figure,
take the minimum value as the size of the
pinhole diameter.
4.2.3. Work out the clearance on the basis of the
size difference between the hole diameter
and the pin diameter. Replace the piston
pin or the piston if the result exceeds the
benchmark value.
[Benchmark]
0.004-0.009mm
[Limit]
0.015mm
4.2.4. Measurement of the piston diameter
4.2.4.1. Make the measurement at the position
11mm below the piston skirt and along
the vertical direction of the piston pin.
[Benchmark]
72
–0.013–0.025
4.2.5. Check the clearance between the piston
ring and the ring groove
4.2.5.1.
Use a feeler to measure the rings
Benchmark(mm)
Limit (mm)
Primary ring 0.03~0.06 0.12
Secondary ring
0.03~0.06 0.11