The Reason for the dimpled plate is to make room for the head of that screw on the reed valve. The reed does stay in because of the gasket.
When I did mine I used a flat plate and just grabbed the screw with a pair of vise grips and just tore it out.
![Rectangle Font Pattern Slope Monochrome]()
When I did mine I used a flat plate and just grabbed the screw with a pair of vise grips and just tore it out.
