Any experience using PTFE/Teflon to lube pallet pull-downs?

[ChristopherS]

When doing an initial test of some pallets on the 1875 Henry Erben I'm helping restore, many pallets were sluggish to return to closed position. I initially thought I'd have to replace pallet springs, but after doing a bit of research discovered that piano technicians have used PTFE/Teflon lubricants on action parts for many years, e.g. Protek CLP - Lubricant for piano action parts - Howard Piano Industries and https://youtu.be/0wTDfqMJbI8 It would seem important to lubricate without damaging felt or leather. Does anyone have experience dealing with this problem of sticky pallet pull-downs? Thanks.

[Larason2]

I may be wrong, but while there's nothing wrong with using Teflon lubricants, I would still think you have to releather the pallet valve and replace the spring. Unfortunately, a lubricant isn't enough for a pipe organ action that has to be restored. The leather wears out, and the springs lose their force, and there's nothing that can be done about that.

[myorgan]

IIRC, Teflon lubricants leave a residue which may build up. I would almost prefer a water dispersant like WD-40. Then again, I'm no expert on the matter.

Michael