Kubota GR1600EU Workshop Manual page 110

GR1600EU, WSM
Rocker Arm and Push Rod
1. Remove the rocker arm bracket screws (1).
2. Remove the rocker arm assembly (2).
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.
IMPORTANT
• After installing the rocker arm, be sure to adjust the valve
clearance.
Tightening torque Rocker arm bracket screw
(1) Rocker Arm Bracket Screws
(2) Rocker Arm Assembly
Cylinder Head
1. Loosen the pipe clamp, and remove the water return pipe.
2. Remove the cylinder head screw in the order of "j" to "a".
3. Lift up the cylinder head to remove.
4. Remove the cylinder head gasket and O-ring (1).
(When reassembling)
• Replace the cylinder head gasket with a new one.
• Securely fit the O-ring (1) to the pipe pin.
• Tighten the cylinder head screws after applying sufficient oil.
• Tighten the cylinder head screws diagonal sequence starting
from the centre.
• Tighten them uniformly, or the head may deform in the long run.
• Retighten the cylinder head screws after running the engine for
30 minutes.
Tightening torque Cylinder head screw
(1) O-ring
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.
IMPORTANT
• Do not change the combination of tappet and tappet guide.
(1) Tappet
1-S24
ENGINE
9.81 to 11.2 N·m
1.00 to 1.15 kgf·m
7.24 to 8.31 lbf·ft
(3) Push Rod
(4) Tappet
9Y1210595ENS0031US0
38 to 42 N·m
3.8 to 4.3 kgf·m
28 to 31 lbf·ft
j to a: To Loosen
a to j: To Tighten
9Y1210595ENS0096US0
9Y1210595ENS0097US0
KiSC issued 11, 2013 A