lubricating the action

[GetWithTheTines]

I have my piano completely taken apart right now and am lubricating all of the joints in the whip assembly. I'm wondering if it's a good idea to lubricate the joints on the hammer assembly (for lack of a better term) as well. Will that make my action lighter? I'm not so sure I want that. I like to have a bit of heavier action so that it plays more like an acoustic piano.

[Rob A]

Make it lighter: no.

Make the keys return to their rest position faster: quite possibly.

I did this to mine recently with the latter goal in mind. If you hold the damper pedal down, and keys do not return to rest position quickly after being played, this can help a lot. The damper springs help the key return quickly, but with the pedal down you don't get the benefit of that. Kind of a common Wurli problem. There are other factors, but this is a big one.

[pianotuner steveo]

The wurli has a real light action, there's not much you can do to make it feel like an acoustic piano.

Adding key weights makes the action LIGHTER, not heavier, in case you were thinking of that.

Lessening the key dip gives your hands the illusion that the action is a little heavier, but that may cause you to play harder, and can lead to broken reeds.