Yanmar 4BY, Service Manual, Page: 81 / 275

ENGINE
5-26
BY Service Manual
Cylinder Head
Disassembly of Cylinder Head
Figure 5-18
1. Attach cylinder head to special tool OEM No.
11 9 000 (Figure 5-18) .
Figure 5-19
2. Place special tool OEM No. 11 9 008 with
straight surface on combustion chamber side of
cylinder head
(Figure 5-19) .
Figure 5-20
3. Insert special tool OEM No. 11 9 006 and lock
with special tool OEM No. 11 9 005 in direction
of arrows
(Figure 5-20) .
Figure 5-21
4. Lock special tool OEM No. 11 9 005 in direction
of arrows (Figure 5-21) . Rotate cylinder head
180° into service position.