Yanmar 3TNV82A-B Service Manual page 151

Crankshaft and Piston Specifications
(Piston Ring Cont.)
Model
Top Ring
3TNV88,
Second Ring
4TNV88
Oil Ring
TNV DI Service Manual
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
Standard
0.0811 - 0.0817 in.
(2.060 - 2.075 mm)
0.0776 - 0.0783 in.
(1.970 - 1.990 mm)
0.0028 - 0.0041 in.
(0.070 - 0.105 mm)
0.0079 - 0.157 in.
(0.200 -.0400 mm)
0.0797 - 0.0803 in.
(2.025 - 2.040 mm)
0.0776 -- 0.0783 in.
(1.970 - 1.990 mm)
0.0014 - 0.0028 in.
(0.035 - 0.070 mm)
0.0079 - 0.0157 in.
(0.200 - 0.400 mm)
0.1581 - 0.1587 in.
(4.015 - 4.030 mm)
0.1563 -.1571 in.
(3.970 - 3.990 mm)
0.0010 - 0.0024 in.
(0.025 - 0.060 mm)
0.0079 - 0.0157 in.
(0.200 - 0.400 mm)
ENGINE
Reference
Limit
Page
-
0.0768 in.
(1.950 mm)
-
0.0193 in.
(0.490 mm)
0.0843 in.
(2.140 mm) See
Inspection of
0.0768 in.
Pistons,
(1.950 mm)
Piston Rings
0.0075 in.
and Wrist
(0.190 mm)
Pin on
0.0193 in. page 6-83.
(0.490 mm)
0.1626 in.
(4.130 mm)
0.1555 in.
(3.950 mm)
0.0071 in.
(0.180 mm)
0.0193 in.
(0.490 mm)
6-19