Kubota WG972-E2 Workshop Manual page 108

WG972-E2, DF972-E2, WSM
Rocker Arm and Push Rod
1. Remove the rocker arm bracket screws (1).
2. Detach 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 clamps (1), and remove the water return hose
(2).
2. Remove the cylinder head screw in the order of (n) to (a).
3. Lift up the cylinder head to detach.
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.
Tightening torque Cylinder head screw
(1) Hose Clamp
(2) Water Return Hose
Tappets
1. Remove the tappets (1) from the crankcase.
(When reassembling)
• Visually check the contact between tappets and cams for proper
rotation. If defect 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
S-38
GASOLINE / LPG ENGINE
9.8 to 11.3 N·m
1.00 to 1.15 kgf·m
7.2 to 8.3 ft-lbs
(3) Push Rod
(4) Tappet
W1050212
37.3 to 42.2 N·m
3.8 to 4.3 kgf·m
27.5 to 31.1 ft-lbs
A : Gear Case Side
(n) to (a) : To Loosen
(a) to (n) : To Tighten
W1025645
W10209700
KiSC issued 01, 2006 A