sticking keys

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mikwin
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sticking keys

Post by mikwin » 21 Jul 2018, 02:22

As a complete pianoforte tyro ,I would be grateful for some advice. The problem is as follows.
When I play D sharp just above middle C, this then causes the key of E to activate also.
The key of E can be restored to the non-playing position by some force downwards when D sharp hammer remains in the striking position.If get all keys in playing position, then I can playC,D,E and F with no reaction from D sharp.
I have tried numerous cures from the internet involving foreign objects, bent pins,tight pins due to felt problems, ensuring correct alignment of oval head front pins , keyboard interference from front rail and squirting silicon spray in numerous possible sources of trouble but to no avail.
I should add that I am attempting to get the instrument playing again under my own steam really as a project for my dotage. The innards of the instrument are fascinating and were a complete mystery to me despite years of playing.

Gill the Piano
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Re: sticking keys

Post by Gill the Piano » 21 Jul 2018, 20:06

Well since you are going to need the piano tuner, why not let your tuner sort it out - sounds as if you've exhausted everything we might suggest! The keys themselves might have twisted and be touching, or the key leads might have oxidised and be touching. Let the tuner have a look.
I play for my own amazement... :piano;

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Colin Nicholson
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Re: sticking keys

Post by Colin Nicholson » 23 Jul 2018, 14:19

A common problem for notes activating adjacent notes is the jack. This is the backward "L" length of wood attached and pinned to the undercarriage lever. If the jack is pinned to a flange, the flange could have come loose (dry glue joint), and popped out/ leaning to the right (partly aimed under next hammer notch).... or if the jack is pinned directly to the lever, if the bushings are loose/ cracked jack flange/ broken lever boss area, then will cause the same problems. The former is easy to fix if not damaged, but the latter may require a more extensive repair.... and for both jobs, specialist tools are required.

Oh dear me!! ...... spraying the action with silicon spray?? .... the kiss of death in a few days, see what happens.
I've got some wonderful DIY bodged photos of actions soaked in WD40, and the repairs as a result are quite extensive.

Good luck anyway........

Colin
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mikwin
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Re: sticking keys

Post by mikwin » 26 Jul 2018, 11:12

To Gill the piano and Colin Nicholson.
It looks as if I may have got myself into deep trouble but thank you both very much for your expert opinions in adding to my exponential learning curve. I can only hope that, by the grace of God, I have escaped a terminal situation.
M Wynn

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