Drive Tuning Pins?

[Piano Forte Supply]

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Although I use CA from time to time, in cases like this, I prefer 
tapping pins in deeper.  

Reasons:
1)I feel CA glue doesn't penetrate well if  applied to an  piano 
standing up.  Laying a piano on its back is an involved procedure.
2) I don't really like introducing any chemicals into a pin block.  The 
effects of chemicals on future re-pinning (which in such a case I 
consider almost inevitable at some point down the road) are unknown (at 
least by me).
3) I prefer the aural assault of driving the pins (I wear ear 
protection) to the  chemical assault to my lungs.
4) If pins are really that high, tapping them in will improve tunability 
by reducing flag poling.


A few comments: neither measure will address a cracked pin block, and 
driving in pins needs to be done judiciously, of course.  Always make a 
test on a few pins before going the whole nine yards...

Jurgen Goering
---------------------

Chris  wrote:

> I've got a customer with loose tuning pins (well, I mean her piano, of 
> course).  It's an old upright piano of nominal value.  Normally I 
> would not drive the tuning pins to correct this, I would do the CA 
> glue thing (unless there are indications of a more serious problem).  
> But in this case I am considering driving 'em, because:
>  
> 1) The tuning pins are really high (about 1 inch), and there is lots 
> of room between the coils and the plate.
>  
> 2) All the pins in the piano seem to have about the same torque.  So 
> that makes me think that I'm not seeing a cracked pinblock problem.     
>  
>

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