ENGINE
SM-E4B SERIES, WSM
1-S32
Rocker Arm and Push Rod
1. Remove the rocker arm bracket screws (2).
2. Detach the rocker arm assembly (1).
3. Remove the push rods (3).
(When reassembling)
• When putting the push rods (3) onto the tappets (4), check to
see if their ends are properly engaged with the dimples.
• After installing the rocker arm, be sure to adjust the valve
clearance.
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Cylinder Head and Cylinder Head Gasket
1. Loosen the pipe clamps (1), and remove the water return pipe
(2).
2. Remove the cylinder head screw in the order of (n or j) to (a).
3. Remove the cylinder head gasket.
(When reassembling)
• Replace the cylinder head gasket with a new one.
• When mounting the gasket, set it to the pin pipe holes. Take
care not to mount it reversely.
• The cylinder head should be free of scratches and dust.
• Install the cylinder head, using care not to damage the gasket.
• After applying engine oil to the thread of screws, tighten them in
several steps and specified sequence (a) to (n or j).
• Do not use O-ring on the pin pipe.
• It is not necessary to retighten the cylinder head screw and
to readjust valve clearance after engine warmed up.
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Tightening torque Rocker arm bracket screw
9.81 to 11.2 N·m
1.00 to 1.15 kgf·m
7.24 to 8.31 lbf·ft
(1) Rocker Arm Assembly
(2) Rocker Arm Bracket Screws
(3) Push Rod
(4) Tappet
Tightening torque Cylinder head screw
38 to 42 N·m
3.8 to 4.3 kgf·m
28 to 31 lbf·ft
(1) Pipe Clamp
(2) Water Return Pipe
(3) Pin Pipe
A : Gear Case Side
(n or j) to (a) :To Loosen
(a) to (n or j) :To Tighten
[a] Z482-E4B, Z602-E4B
[b] D722-E4B, D782-E4B, D902-E4B