Yanmar 2TNV70 Service Manual page 106

ENGINE
Removal of Intake Manifold / Valve Cover
1. Remove the intake manifold bolts
(Figure 6-2, (1)) and valve cover bolts
(Figure 6-2, (2)).
2. Remove the valve cover / intake manifold
(Figure 6-2, (3)). Discard gasket
(Figure 6-2, (4)).
(1)
Figure 6-2
3. Remove the exhaust manifold bolts
(Figure 6-2, (5)) and nuts (Figure 6-2, (6)).
Remove the exhaust manifold (Figure 6-2, (7))
and the exhaust manifold gasket
(Figure 6-2, (8)).
Removal of Glow Plugs
1. Disconnect the glow plug harness
(Figure 6-3, (2)) from the glow plugs
(Figure 6-3, (1)).
2. Remove the glow plugs from the cylinder head.
6-20
(2)
(3)
(4)
(5)
(6)
(7)
(8)
0002131
(1)
Figure 6-3
Removal of Rocker Arm Assembly
1. Remove the bolts (Figure 6-4, (1)) and nuts
(Figure 6-4, (2)) that retain the rocker arm shaft
supports.
2. Remove the rocker arm shaft assembly from
the cylinder head.
Note: Identify the push rods so they can be
reinstalled in their original locations.
3. Remove the push rods and identify for
reinstallation.
(2)
(1)
Figure 6-4
TNV IDI Service Manual
Cylinder Head
(2)
(2)
0002147