Yanmar 3TNV82A-B Service Manual page 152

ENGINE
(Piston Ring Cont.)
Model
Top Ring
4TNV94L,
4TNV98, Second Ring
4TNV98T
Oil Ring
6-20
Inspection Item
Ring Groove Width
Ring Width
Side Clearance
End Gap
Ring Groove Width
Ring Width
Side Clearance
End Gap
Ring Groove Width
Ring Width
Side Clearance
End Gap
Crankshaft and Piston Specifications
Standard
0.0803 - 0.0811 in.
(2.040 - 2.060 mm)
0.0764 - 0.0772 in.
(1.940 - 1.960 mm)
0.0031 - 0.0047 in.
(0.080 - 0.120 mm)
0.0098 - 0.0177 in.
(0.250 - 0.450 mm)
0.0819 - 0.0825 in.
(2.080 - 2.095 mm)
0.0776 - 0.0783 in.
(1.970 - 1.990 mm)
0.0035 - 0.0049 in.
(0.090 - 0.125 mm)
0.0177 - 0.0256 in.
(0.450 - 0.650 mm)
0.1187 - 0.1193 in.
(3.015 - 3.030 mm)
0.1169 - 0.1177 in.
(2.970 - 2.990 mm)
0.0010 - 0.0024 in.
(0.025 - 0.060 mm)
0.0098 - 0.0177 in.
(0.250 - 0.450 mm)
TNV DI Service Manual
Reference
Limit
Page
-
0.0756 in.
(1.920 mm)
-
0.0213 in.
(0.540 mm)
0.0864 in.
(2.195 mm) See
Inspection of
0.0768 in.
Pistons,
(1.950 mm)
Piston Rings
0.0096 in.
and Wrist
(0.245 mm)
Pin on
0.0287 in. page 6-83.
(0.730 mm)
0.1232 in.
(3.130 mm)
0.1161 in.
(2.950 mm)
0.0071 in.
(0.180 mm)
0.0217 in.
(0.550 mm)