Mitsubishi FUSO FH 1997, Service Manual

Page: 161 / 200

11-12
CYLINDER HEAD AND VALVE MECHANISM
12410
1
13
5
9
23
20
10 22
14
6
2
3
7 11 15 19
21
18
16
12
8
4
24
À À À À À À À
25 17
[Installation]
• Center punch the heads of cylinder head bolts 4 before installation.
CAUTION
–
If there are already three center-punch marks, replace the cylinder
head bolt with a new one.
• After tightening cylinder head bolts 4 at specified torque in the
numbered order as illustrated, tighten further as follows:
À
: Tightened simultaneously with rocker and bracket assembly
01991
12758
• Turn
0
socket wrench holder D counterclockwise and keep the
spring in the wrench compressed.
E :
Socket
F : Rod
G : Rod (for connection)
• Set
0
socket wrench holder D so that the repercussive force of the
spring presses rod G (for connection) against adjacent parts such as,
the rocker shaft bracket or the injection pipe.
• Select a scale that is convenient for reading graduation H on holder D.
• Tighten further by turning socket H clockwise by 90
°
(setting is in 5
°
increments), referring to graduation J on the selected scale.
J
H
G
G
F
0
D
E
5
°