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

SERVICING
6. Servicing
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-
Service limit
face flatness

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.
05-E4B SERIES,05-E4BG SERIES
0.05 mm
0.002 in.
(1) Red permeative liquid
(2) Detergent

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.
4. ENGINE
(3) White developer
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KiSC issued 03, 2023 A