Yanmar 3TNV76 - Piston

ENGINE
TNV IDI Service Manual
6-9
Crankshaft and Pistons Specifications
Piston
Inspection Item Standard Limit
Reference
Page
Piston Outside Diameter
(Measure at 90° to the Piston Pin.)
2/3TNV70
2.7543 - 2.7555 in.
(69.960 - 69.990 mm)
2.7526 in.
(69.915 mm)
See
Inspection of
Pistons,
Piston Rings
and Wrist Pin
on page 6-46
3TNV76
2.9904 - 2.9915 in.
(75.955 - 75.985 mm)
2.9886 in.
(75.910 mm)
Piston Diameter Measurement Location
(Upward From the Bottom of the Piston)
0.8661 - 0.9843 in.
(22.0 - 25.0 mm)
-
Piston-to-Cylinder Clearance
2/3TNV70
0.0012 - 0.0020 in.
(0.030 - 0.050 mm)
-
3TNV76
0.0014 - 0.0022 in.
(0.035 - 0.055 mm)
-
Wrist Pin
Hole Inside Diameter
0.8661 - 0.8665 in.
(22.000 - 22.009 mm)
0.8677 in.
(220.039 mm)
Pin Outside Diameter
0.8659 - 0.8661 in.
(21.995 - 22.000 mm)
0.8648 in.
(21.965 mm)
Oil Clearance
0.0000 - 0.0006 in.
(0.000 - 0.014 mm)
0.0029 in.
(0.074 mm)
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