Kubota D902-E2B - Cylinder Head; Thermostat Assembly

S-32
SM-E2B SERIES, WSM
DIESEL ENGINE
Cylinder Head
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. Lift up the cylinder head to detach.
4. Remove the cylinder head gasket and O-ring (3).
(When reassembling)
• Replace the cylinder head gasket with a new one.
• Securely fit the O-ring (3) to the pipe pin.
• Tighten the cylinder head screws after applying sufficient oil.
• Tighten the cylinder head screws in order of (a) to (n or j).
• Tighten them uniformly, or the head may deform in the long run.
• Retighten the cylinder head screws after running the engine for
30 minutes.
W1025645
Thermostat Assembly
1. Remove the thermostat cover mounting screws (1), and remove
the thermostat cover (2).
2. Remove the thermostat assembly (4).
(When reassembling)
• Apply a liquid gasket (Three Bond 1215 or equivalent) only at the
thermostat cover side of the gasket (3).
W10363950
Tightening torque Cylinder head screw
37.3 to 42.2 N·m
3.8 to 4.3 kgf·m
27.5 to 31.1 ft-lbs
(1) Pipe Clamp
(2) Water Return Pipe
(3) O-ring
A : Gear Case Side
(n or j) to (a) : To Loosen
(a) to (n or j) : To Tighten
[a] Z482-E2B, Z602-E2B
[b] D662-E2B, D722-E2B,
D782-E2B, D902-E2B
(1) Thermostat Cover Mounting Screw
(2) Thermostat Cover
(3) Thermostat Cover Gasket
(4) Thermostat Assembly
KiSC issued 06, 2006 A