Kubota WSM 05-E4B Series - Checking Cylinder Head Flaw; Checking Valve Recessing

3. Measure the clearance with a feeler gauge.
NOTE
• If the measurement
is more than the service
limit, replace the cylinder head.
IMPORTANT
• Check the valve recessing after you replace.
Cylinder head sur-
face flatness
Service limit
0.05 mm
0.002 in.
6.3 Checking cylinder head flaw
Tools required
• Red permeative liquid
• Detergent
•
White developer
1. Clean the surface of the cylinder head with
detergent (2).
2. Apply some red permeative liquid (1) on the
cylinder head surface.
3. After you apply, do not touch it for 5 to 10 minutes.
4. Clean away the red permeative liquid on the
cylinder head surface with detergent (2).
5. Apply the white developer (3) on the cylinder head
surface.
NOTE
• If you found a red flaw, replace the cylinder
head.
(1) Red permeative liquid
(2) Detergent
(3) White developer
6.4 Checking valve recessing
Tools required
• Depth gauge
1. Clean
the cylinder head surface (1), valve face and
valve seat.
2. Set the valve into the valve guide.
SERVICING
6. Servicing 4. ENGINE
05-E4B SERIES,05-E4BG SERIES
4-51
KiSC issued 03, 2023 A