S-51
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG WSM
DIESEL ENGINE
Cylinder Head
1. Loosen the pipe clamp (2), and remove the water return pipe (1).
2. Remove the cylinder head screw in the order of (n or r) to (a).
3. Lift up the cylinder head (3) to detach.
4. Remove the cylinder head gasket (4).
(When reassembling)
• Replace the cylinder head gasket (4) with a new one.
• Tighten the cylinder head screws after applying sufficient oil.
• Tighten the cylinder head screws in diagonal sequence starting
from the center in the order of (a) to (n or r).
• Tighten them uniformly, or the head may deform in the long run.
IMPORTANTQ
• To replace the cylinder head gasket (4), in advance make
sure the marking (5) of cylinder head gasket in the original
engine, and replace the same marking as the original
cylinder head gasket.
W1112015
Tightening torque Cylinder head screw
93.2 to 98.0 N·m
9.50 to 10.0 kgf·m
68.8 to 72.3 lbf·ft
Gasket
Marking &
Code
Number
Model
D1503-M
D1703-M
D1803-M
D1803-M-DI
V2003-M
V2203-M
V2403-M
V2403-M-T
V2403-M-DI
V2403-M-DI-T
15 1G720-03600 1G750-03600 1G464-03600 1G790-03600
20 1G720-03310 1G750-03310 1G464-03310 1G790-03310
25 1G720-03610 1G750-03610 1G464-03610 1G790-03610
30 1G720-03620 1G750-03620 1G464-03620 1G790-03620
35 1G720-03630 1G750-03630 1G464-03630 1G790-03630
Gasket
Marking &
Code
Number
Model
D1703-M-BG V2003-M-BG V2003-M-T-BG
V2203-M-BG
V2403-M-BG
15 1G750-03600 1G464-03600 1G770-03600 1G790-03600
20 1G750-03310 1G464-03310 1G770-03310 1G790-03310
25 1G750-03610 1G464-03610 1G770-03610 1G790-03610
30 1G750-03620 1G464-03620 1G770-03620 1G790-03620
35 1G750-03630 1G464-03630 1G770-03630 1G790-03630
(1) Return Pipe
(2) Pipe Clamp
(3) Cylinder Head
(4) Cylinder Head Gasket
(5) Marking
(n or r) to (a) : To Loosen
(a) to (n or r) : To Tighten
(A) Gear Case Side
(B) Flywheel Side