wsm B2420 - Page 101

ENGINE
B2420, WSM
1-S29
Rocker Arm and Push Rod
1. Remove the rocker arm bracket nuts.
2. Detach the rocker arm assembly (1).
3. Remove the push rods (2).
(When reassembling)
• When putting the push rods (2) onto the tappets (3), check to
see if their ends are properly engaged with the dimples.
IMPORTANT
• After installing the rocker arm, be sure to adjust the valve
clearance.
9Y1210436ENS0036US0
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) to (a) and
remove the cylinder head.
3. Remove the cylinder head gasket.
(When reassembling)
• Replace the cylinder head gasket with 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).
NOTE
• 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.
9Y1210436ENS0037US0
Tightening torque Rocker arm bracket nut
22 to 26 N·m
2.2 to 2.7 kgf·m
16 to 19 lbf·ft
(1) Rocker Arm Assembly
(2) Push Rod
(3) Tappet
Tightening torque Cylinder head screw
64 to 68 N·m
6.5 to 7.0 kgf·m
47 to 50 lbf·ft
(1) Clamp
(2) Return Pipe
(3) Pin Pipe
n to a: To Loosen
a to n: To Tighten
KiSC issued 06, 2012 A