Kubota WSM 07-E3B Series Workshop Manual page 186

07-E3B SERIES, WSM
Cylinder Head Surface Flatness
1. Clean the cylinder head surface.
2. Place a straightedge on the cylinder head's four sides (A), (B),
(C) and (D) and two diagonal (E) and (F) as shown in the figure.
Measure the clearance with a feeler gauge.
3. If the measurement exceeds the allowable limit, correct it with a
surface grinder.
IMPORTANT

• Be sure to check the valve recessing after correcting.
Cylinder head surface
Allowable limit
flatness
Cylinder Head Flaw
1. Prepare an air spray red check.
2. Clean the surface of the cylinder head with the detergent (2).
3. Spray the cylinder head surface with the red permeative liquid
(1). Leave it five to ten minutes after spraying.
4. Wash away the red permeative liquid on the cylinder head
surface with the detergent (2).
5. Spray the cylinder head surface with the white developer (3).
6. If flawed, it can be identified as red marks.
(1) Red Permeative Liquid
(2) Detergent
S-83
ENGINE
0.05 mm
0.002 in.
W1061323
(3) White Developer
W1076542
KiSC issued 06, 2020 A