Examination may show the pallets to be in need of repair.
Damage to the pallet surface.
The amateur's most
successful method of making these good is to consider re-facing them. Re-making
the pallets is the correct way and this is usually accomplished by using a blank
pallet forging where these are available.
To re-face a pallet, clean the
face with abrasive paper and cut a piece of thin spring steel to fit the
surface. Tin both surfaces with solder and sweat them together. Grind away any
surplus from around the edges and polish the new face.
Some fine Vienna Regulators had reversible pallets. If no
one has done this before, you can reverse them and have the benefit of a new
Repairing Your Own Clocks by Mervyn Passmore