Well, after the lovely spring-like start to Toronto’s winter, the cold weather has finally set in, which means there’s no doubt a significant number of you who’ve now proceeded to build camp fires in the middle of your living rooms for additional warmth (or, we suppose, you may have just cranked the thermostat by twenty degrees or dusted the cob webs off the fireplace for reasons other than a visit from a jolly old man in a red suit). Whatever your solution to the frigid air that has set in, we’re sure there will be dozens (alright, hundreds) of people who fail to take our may years of warnings seriously and overheat their piano rooms to the point where some of those costly repercussions we’ve mentioned in our previous posts come into play. Today we’ll take a quick look at one of those: Piano pin block and tuning pin problems.
An overly dry climate will eventually lead to cracking of the piano’s pinblock, but before that occurs, simply loosened tuning pins due to expanding pin holes that can no longer hold their tuning pins snug. Depending on the severity of the damage there are four solutions to the problem, all at varying price points and levels of success.
The quick-fix for less serious cases is simply to knock the existing tuning pins in further to create a better grip. This of course can only be done to a certain point before the coils become too recessed and other options have to be considered.
This leads us to our second more economical quickie fix: Piano pin tightening fluid. With this option, a specially formulated liquid is injected into the area surrounding your loose tuning pins by the piano technician. This liquid will cause the surrounding wood of the pinblock to swell, leading to a renewed tightened grip on your piano’s tuning pins. This option has varying levels of success, and the results may only last for a season or two as opposed to more thorough, permanent solutions, which are as follows:
Re-pinning with over-sized tuning pins. This relatively popular option consists of replacing the piano’s existing tuning pins with larger (thicker) pins of a greater diameter, that will provide a tighter fit and make the piano easier to tune and help in retain its tuning longer. This procedure can at times be done several times over the years with progressively larger pins before the final (and most expensive option) becomes necessary:
Installing a new pinblock. If all the other options have been exhausted (or the cracking/loosening of the pinblock is too severe to make them viable options), the final option before buying an entirely new piano is to have a brand new custom pinblock fabricated and installed to the original specifications of your instrument. This will ensure your piano can once again be fitted with size one tuning pins like when it was new, and enable you to start the above procedures all over again as you casually forget to keep it away from the roaring flames of chestnuts roasting on an open fire.