ENGINE
WG972-E4, WSM
1-S28
Cylinder Head
1. Loosen the pipe clamps (2), and remove the water return hose
(1).
2. Remove the cylinder head screw in the order of (n) to (a).
3. Lift up the cylinder head to remove.
4. Remove the cylinder head gasket.
(When reassembling)
• Replace the cylinder head gasket with a new one.
• Tighten the cylinder head screws after applying sufficient oil.
• Tighten the cylinder head screws in order of (a) to (n).
• Tighten them uniformly, or the head may deform in the long run.
9Y1211108ENS0042US0
Tappets
1. Remove the tappets (1) from the crankcase.
(When reassembling)
• Visually check the contact between tappets and cams for proper
rotation. If problem is found, replace tappets.
• Before installing the tappets, apply engine oil thinly around
them.
• Do not change the combination of tappet and tappet guide.
9Y1211108ENS0043US0
Tightening torque Cylinder head screw
38 to 42 N·m
3.8 to 4.3 kgf·m
28 to 31 lbf·ft
(1) Water Return Hose
(2) Hose Clamp
A: Gear Case Side
(n) to (a): To Loosen
(a) to (n): To Tighten
(1) Tappet
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