ENGINE
L3301, L3901, L4701, WSM
1-S45
Cylinder Head
1. Remove the cylinder head screw in the sequence of (n or r) to
(a).
2. Lift up the cylinder head (3) to remove.
3. Remove the cylinder head gasket (4).
(When reassembling)
• Replace the cylinder head gasket (4) with a new one.
• Apply sufficient oil and tighten the cylinder head screws.
• Tighten the cylinder head screws in a diagonal sequence. Start
from the center in the sequence of (a) to (n or r).
• Tighten them equally, or the shape of the head changes after
some time.
• Before you replace the cylinder head gasket (4), record the
mark (5) on the cylinder head gasket of the engine. Then
replace a cylinder head gasket with same mark.
(To be continued)
Tightening torque
Cylinder head mounting
screw
93.2 to 98.0 N·m
9.50 to 10.0 kgf·m
68.8 to 72.3 lbf·ft
Gasket Mark
and
Code Number
Model
D1803-CR-E4 V2403-CR-E4
15 1G750-03600 1G790-03600
20 1G750-03310 1G790-03310
25 1G750-03610 1G790-03610
30 1G750-03620 1G790-03620
35 1G750-03630 1G790-03630
(1) Water Return Pipe
(2) Pipe Clamp
(3) Cylinder Head
(4) Cylinder Head Gasket
(5) Mark
(n or r) to (a): To Loosen
(a) to (n or r): To Tighten
(A) Gear Case Side
(B) Flywheel Side
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