Westerbeke Universal M-50 - Checking Flaw of Cylinder Head Surface

How to check cylinder head surface
CHECKING FLAW OF CYLINDER HEAD SURFACE
1. Clean the surface of the cylinder head.
2. Spray the cylinder head surface:with the red permeative liquid.
3. Wash away the red permeative liquid on the cylinder head surface with the detergent.
4. Spray the cylinder head surface with the developer. If flawed, it can be identified as red marks.
Reference Should be no flaw.
(A)
A. Air spray red check
1. Detergent
2.
Red Permeative Liquid
3. White Developer
(2)
107