Takeuchi TB 175 Handbuch Seite 810

4. Disassembly, inspection and reassembly of engines
(c)If the limit is exceeded or any surface defect is
found, repair by boring and honing. Use an
oversized piston (and new piston rings) as
required.
Oversized piston (0.25 mm, with piston rings)
Model Code No.
3TNV82A 719802-22900
3TNV84 (T)
129004-22900
4TNV84
4TNV84T 129508-22900
3/4TNV88 129005-22900
4TNV94L 729906-22900
4TNV98 129902-22700
4TNV106 729907-22900
4TNV106T 723907-22910
Piston ring assy for oversized (0.25 mm)
Model Piston ring code No.
3TNV82A
3TNV84 (T)
4TNV84
4TNV84T
3/4TNV88
4TNV94L
4TNV98
4TNV106 (T)
Cylinder dimension after boring and honing
Cylinder dimension
Model
3TNV82A 82.250 to 82.280
3TNV84 (T)
84.250 to 84.280
4TNV84
3/4TNV88 88.250 to 88.280
4TNV94L 94.250 to 94.280
4TNV98 98.250 to 98.280
4TNV106 (T) 106.250 to 106.280
Standard (mm)
82.250
84.250
84.250
88.250
94.250
98.250
106.250
106.250
719802-22950
129004-22950
129004-22950
129005-22950
729906-22950
729907-22950
723907-22950
Honing angle
(mm)
30 to 40 deg.
Surface roughness
(deg.)
R
max
1.0 to 3.5S
96
Roundness/Cylindricity
(mm)
0.01 or less