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Started by Boye, March 23, 2022, 03:04:29 PM
Quote from: Boye on March 23, 2022, 03:04:29 PMHi there,I'm new to the forum as member but have read alot of threads over the last weeks. It's a wonderful source of information and its great see how people help each other. I'm starting the restoration of my piano but have a couple of questions before ordering parts.First is about the balance rail felts. I feel like the general level of my keys is a little low. Some tabs of keys come really close to the front of the case. One or two keys even make noise because they hit the front of the case on a heavy blow. The thickness of the balance rail felts seems to be 2mm (0.08inch) and a thad more (plus added shims ofcourse). This already is quite thick I believe. I was able to find 3.2 mm (0.125inch) balance rail felts. Would that be a good idea for this piano? or could anything else be of influence to the keyheight? There is none in the service manual but could anyone share a reference on the keyheight? It would be nice to have an idea of how high the keys should be because it seems like on mine it's nowhere close to where it should be. Second is about the frontrail felts. Since the key level is quite low, the bottom of the keys should also be lower. Therefore you would expect that the bottom of the key would come close or would even touch the front rail felts. The opposite is happening however. When a key is pressed down really hard (Bending the key even) it still will not touch the frontrail felt. The tab on the key top will even hit the front of the case first before the key will touch the frontrail felt. Even when the tab of a key hits the front of the case, there is still a distance between the bottom of the key and the felt. If I heighten the key (to bring it to a normal level), this distance will become even greater. I know the key should not hit the front rail felt and the felt is only there for protection during a heavy blow but what is the idea behind a felt that the key will never be able to reach? The front rail felt is 5mm (0.2 inch). The keydip on this piano is around 11-12mm, a little to big I think.Maybe I am way to precise but it looks like I am missing something because this seems to be unlogical.Boye