On page 206 I did a post about worn down middle sections and means to extend their usage.
The problem with worn down middle sections is the lowering of the spring action on the locking system.
Yesterday, I received some mica washers I specially ordered for that task.
Here they are, one is already placed in the filter, just the right size to keep the holes free.
This is the patient, a worn middle section with an uneven rim which is not sealing anymore.
It needs sanding down in order to get it flat again.
After a few strokes on a piece of sanding paper it looks like this. I only sanded as much it needed to get a good spring action together with the mica washer, which is a spacer at the same time.
It works really well and may be, that middle section will last for ever because it is sitting on the heat insulating mica washer, it is a win, win construction. Soon I will see how the cleaning goes and if it can be used several times. I think the residues and the heat will bond the mica even more and make it last for a long time.
The moral of the story is: I will be out of business soon because I am making things which last forever.
As no one responded to the last post about the mica washer, I am not sure if this is of any interest and if I should order such washers? I myself think that it is pretty cool.
vapman