<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; = charset=us-ascii"> <META NAME="Generator" CONTENT="MS Exchange Server version = 6.0.4630.0"> <TITLE>Noisy Action troubleshooting</TITLE> </HEAD> <BODY>  Hi All, This week I will be diagnosing = a new, very noisy, Nordiska grand action for a concerned dealer. Nordiska is Chinese = manufactured as you probably know. Excessive action noise, present = thru whole action, but worse on some keys/sections Key bushings are very loose, = both balance and front rails. Seems they've used a very thin = bushing cloth that doesn't match the combination of skinny balance rail = pin and key mortise. The dealer has seen some = improvement thru repinning wippen flanges in previous actions. On this particular action, = seems like flopping keys is the main culprit. We're going to regulate, = rebush  and glue size balance rail holes on a few keys to hear = results. Any thoughts? I'm also suspicious of: Rep lever adj screw felt; = creating noise when rep lever cycles and returns to rest quickly, sort = of a click sound Rep lever buckskin contacting = bottom of drop screw; another possible click Hammer rest cushion material = used is really keybed felt, too hard/dense IMO; hammers bouncing on this = material & rail system produce an audible "thump tone". = Also found a few loose = backchecks. Best regards, Brad Smith, RPT Smith Piano Services 483 Donald Street Bedford, NH 03110 800-964-TUNE (8863) 603-625-4696 <A HREF="mailto:brad@smithpiano.com">brad@smithpiano.com</A> <A HREF="http://www.smithpiano.com">www.smithpiano.com</A> <A HREF="http://www.smithpiano.com/schedule.htm">NEW!! 24/7 Online = Appointment Scheduling</A> </BODY> </HTML>