Yanmar 3TNV82A Service Manual page 146

ENGINE
(Piston Ring Cont.)
Model
Top Ring
4TNV106,
Second Ring
4TNV106T
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
0.0992 - 0.1000 in.
(2.520 - 2.540 mm)
0.0961 - 0.0969 in.
(2.440 - 2.460 mm)
0.0024 - 0.0039 in.
(0.060 - 0.100 mm)
0.0118 - 0.0177 in.
(0.300 - 0.450 mm)
0.0815 - 0.0821 in.
(2.070 - 2.085 mm)
0.0776 - 0.0783 in.
(1.970 - 1.990 mm)
0.0031 - 0.0045 in.
(0.080 - 0.115 mm)
0.0177 - 0.0236 in.
(0.450 - 0.600 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)
0.0118 - 0.0197 in.
(0.300 - 0.500 mm)
TNV DI Service Manual
Reference
Limit
Page
-
0.0953 in.
(2.420 mm)
-
0.0213 in.
(0.540 mm)
0.0860 in.
(2.185 mm)
See
Inspection of
0.0768 in.
Pistons,
(1.950 mm)
Piston Rings
0.0093 in.
and Wrist
(0.235 mm)
Pin on
page 6-78.
0.0268 in.
(0.680 mm)
0.1232 in.
(3.130 mm)
0.1161 in.
(2.950 mm)
0.0071 in.
(0.180 mm)
0.0236 in.
(0.600 mm)