Yanmar 3TNV82A-B, Service Manual

Page: 141 / 394

ENGINE
TNV DI Service Manual 6-9
Cylinder Head Specifications
Push Rod
Rocker Arm and Shaft
Valve Stem Seal Projection From Cylinder Head
See
Reassembly
of Intake and
Exhaust
Valves on
page 6-45.
2 Valves
3TNV82A
0.618 - 0.629 in.
(15.7 - 16.0 mm)
-
4TNV84
0.736 - 0.748 in.
(18.7 - 19.0 mm)
-
3TNV84 (T) -
4TNV88 -
4 Valves
4TNV84T
0.389 - 0.401 in.
(9.9 - 10.2 mm)
-
4TNV94L
0.460 - 0.472 in.
(11.7 - 12.0 mm)
-
4TNV98 (T) -
4TNV106 (T)
0.606 - 0.614 in.
(15.4 - 15.6 mm)
-
Inspection Item Standard Limit
Reference
Page
Inspection Item Standard Limit
Reference
Page
Push Rod Bend - All Models
Less than
0.0012 in. (0.03 mm)
0.0012 in.
(0.03 mm)
See Push
Rod Bend on
page 6-41
and 6-56.
Model Inspection Item Standard Limit
Reference
Page
3TNV82A, 3TNV84,
3TNV84T, 3TNV88,
4TNV84, 4TNV84T,
4TNV88
Arm Shaft Hole Diameter
0.6299 - 0.6307 in.
(16.000 - 16.020 mm)
0.6327 in.
(16.07 mm)
See
Inspection of
Rocker Arm
Assembly on
page 6-41
and 6-56.
Shaft Outside Diameter
0.6286 - 0.6293 in.
(15.966 - 15.984 mm)
0.6276 in.
(15.94 mm)
Oil Clearance
0.0006 - 0.0021 in.
(0.016 - 0.054 mm)
0.0051 in.
(0.13 mm)
4TNV94L, 4TNV98,
4TNV98T, 4TNV106,
4TNV106T
Arm Shaft Hole Diameter
0.7283 - 0.7291 in.
(18.500 - 18.520 mm)
0.7311 in.
(18.57 mm)
Shaft Outside Diameter
0.7272 - 0.7280 in.
(18.470 - 18.490 mm)
0.7260 in.
(18.44 mm)
Oil Clearance
0.0004 - 0.0020 in.
(0.010 - 0.050 mm)
0.0051 in.
(0.13 mm)
TNV_DI_SM_A4.book 9 ページ ２００７年１２月６日 木曜日 午前９時２３分