Kubota M5040 Workshop Manual page 157

M5040, M6040, M7040, WSM
Selecting Cylinder Head Gasket
Replacing the Cylinder Head Gasket
1. Make sure to note the notch (a), (b) or (c) of cylinder head gasket
(1) in advance.
2. Replace the same notch (a), (b) or (c) as the original cylinder
head gasket (1).
Selecting the Cylinder Head Gasket
• Select the cylinder head gasket (1) thickness to meet with the top
clearance when replacing the piston, piston pin bush, connecting
rod or crankpin bearing.
1. Measure the piston head's protrusion or recessing from the
crankcase cylinder face 4 spots per each piston and (average of
four pistons) using the dial gauge as shown in figure.
2. Select the suitable cylinder head gasket refer to the table below.
Thickness of cylinder
Notch of head gasket
Cylinder
Head
Before After
Gasket
tightening tightening
Without 1.10 mm 1.00 mm
notch (a) 0.0433 in. 0.0394 in.
1 notch 1.00 mm 0.90 mm
(b) 0.0394 in. 0.0354 in.
2 notches 0.90 mm 0.80 mm
(c) 0.0354 in. 0.0315 in.
(1) Cylinder Head Gasket
(2) Measuring Point
A : Front Cover Side
B : Flywheel Housing Side
C : Notch of Cylinder Head Gasket
1-S31
ENGINE
Piston Head's
protrusion or
recessing from the
Part Code
level of crankcase
cylinder face.
(average of 4 pistons)
0.250 to 0.3425 mm
1G772-03610
0.0098 to 0.0135 in.
0.150 to 0.250 mm
1G772-03600
0.0059 to 0.0098 in.
0.0775 to 0.150 mm
1G772-03310
0.0031 to 0.0059 in.
(a) Without Notch
(b) 1 Notch
(c) 2 Notches
W1022965
KiSC issued 06, 2008 A