Mitsubishi Heavy Industries S4S, Service Manual

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REASSEMBLY OF BASIC ENGINE
7-17
4.7 Inserting pushrod
(1)
Insert each pushrod into its hole in the cylinder head.
(2)
Make sure that the ball end of each pushrod is placed
correctly on the tappet cup.
Inserting pushrod
4.8 Reassembling rocker shaft assembly
(1)
Apply engine oil to the rocker shaft.
(2)
When reassembling, install the rocker shaft assembly in
the same position as it was.
Note: If the rocker shaft assembly is not installed as it was,
the clearance becomes different, and it may result in a
defect such as wear increase.
(3)
After reassembling, make sure the rocker arm and oil
pipe move freely.
Reassembling rocker shaft assembly
4.9 Installing rocker shaft assembly
(1)
Install the valve caps to the valve heads.
(2)
Tighten the long bolts of the rocker bracket to the
specified torque.
(3)
Tighten the short bolts of the rocker bracket.
Installing rocker shaft assembly
Pushrod
Tappet
Rocker arm
Snap ring
Rocker shaft
Bracket
Rocker shaft spring
Assembling mark
(facing upward)
17.5 ± 2.5 N·m
{1.75 ± 0.25 kgf·m}
[12.7 ± 1.8 lbf·ft]
Long
bolt
Short
bolt