DISASSEMBLY OF BASIC ENGINE
5-3
1.1 Removing rocker shaft assembly
&$87,21
Always loosen shorter bolts first. Failing to do so may
cause the damage to the rocker shaft bracket.
(1) Loosen the rocker arm adjusting screws by rotating
about one turn.
(2) Loosen the shorter rocker bracket bolts first.
(3) Then, loosen the longer rocker bracket bolts.
(4) Remove the rocker bracket bolts, and remove the
rocker shaft assembly from the cylinder head.
(5) Remove push rods.
1.2 Disassembling rocker shaft assembly
Remove the snap ring, disassemble the rocker shaft
assembly into the rocker arms, brackets, rocker shaft springs
and rocker shaft.
Note: (a) Be sure to arrange the parts of rocker shaft
assembly in the order of disassembly.
Reassemble the rocker shaft assembly in the
reverse order of disassembly by making sure of
the original combination of rocker arm and shaft
assembly so that the same clearance between the
rocker shaft and arms is restored when
reassembling.
(b) Do not remove the rocker bush when it is not
faulty, and its inside diameter is not exceed the
limit.
1.3 Removing cylinder head bolt
Loosen cylinder head bolts in the numerical order as shown
in the illustration.
Removing rocker shaft assembly
Disassembling rocker shaft assembly
Removing cylinder head bolt
Rocker arm
Adjusting screw
Rocker bracket bolt
Rocker shaft
Rocker shaft spring
Bracket
Rocker arm
Snap ring
2
37
8
11 15
16
12
6
5
17
10
14
13
9
1
4
Number of bolt (17)
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