Yanmar 3TNV Series Service Manual page 202

(2) Intake/exhaust valve and guide
Inspection item
Intake
3TNV82A
(2-valve head)
Exhaust
Intake
4TNV84
3TNV84(T)
3/4TNV88
(2-valve head)
Exhaust
Intake
4TNV84T
(4-valve head)
Exhaust
Intake
4TNV94L
4TNV98(T)
(4-valve head)
Exhaust
Intake
4TNV106(T)
(4-valve head)
Exhaust
Valve guide projection
from cylinder head
Valve guide driving-in method
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
Guide inside diameter
Valve stem outside diameter
Clearance
3TNV82A
4TNV84, 3TNV84(T),
4TNV88
4TNV84T
4TNV94L, 4TNV98(T)
4TNV106(T)
187
12. Service Standards
Standard Limit
7.000 7.015 7.08
6.945 6.960 6.90
0.040 0.070 0.18
7.000 7.015 7.08
6.940 6.955 6.90
0.045 0.075 0.18
8.010 8.025 8.10
7.955 7.975 7.90
0.035 0.070 0.18
8.015 8.030 8.10
7.955 7.960 7.90
0.045 0.075 0.18
6.000 6.015 6.08
5.960 5.975 5.90
0.025 0.055 0.15
6.000 6.015 6.08
5.945 5.960 5.90
0.040 0.070 0.17
7.000 7.015 7.08
6.945 6.960 6.90
0.040 0.070 0.17
7.000 7.015 7.08
6.940 6.955 6.90
0.045 0.075 0.17
7.008 7.020 7.08
6.945 6.960 6.92
0.048 0.075 0.16
7.008 7.020 7.08
6.960 6.975 6.90
0.033 0.060 0.18
11.7 12.0
14.7 15.0
8.2 8.5
9.7 10.0
13.4 13.6
Cold-fitted
mm
Reference
page
4.2.5.(2)
-
-
-
4.2.7.
-
-
-