Yanmar 3TNV82A-B Service Manual page 186

ENGINE
Removal of Cylinder Head
1. Loosen the cylinder head bolts following the
sequence shown in (Figure 6-46).
8
2 12
4 10
6
7 16
1 9
3 11
5 13
1 – Cooling Fan End
2 – Camshaft Side
Figure 6-46
2. Remove the cylinder head bolts
(Figure 6-47, (1)).
3. Lift the cylinder head away from the cylinder
block. Discard the cylinder head gasket
(Figure 6-47, (2)). Place the cylinder head on
the work bench to prevent damage to the
combustion surface.
6-54
(2)
14 5
9 3
(1)
11 1
13 7
(2)
14 6
18 12 4
(1)
17 10 2
15 8
0001864
Figure 6-47
Removal of Intake and Exhaust Valves
1. Place the cylinder head on the work bench with
the combustion side down.
2. Using the valve spring compressor tool,
compress one of the valve springs
(Figure 6-48).
Figure 6-48
TNV DI Service Manual
4-Valve Cylinder Head
(1)
(2)
0001872
0000191