Tom C, Tom D and William, Thank you for the help and I liked Isaac's tip about the VJ lube and pipe nipple. I think I will try to rethread the original bolt first though, just for practice sake. Thanks for the idea. If it works, great, the repair is fixed! If I mess it up worse, then plan B, I can still replace the bolt. It feels good to have a back up...and an excuse to go shopping! Lol. Thanks again! Barb Nobbe, RPT Lexington, KY -----Original message----- From: Thomas Cole <tcole at cruzio.com> To: Pianotech <pianotech at ptg.org> Sent: Wed, Jan 19, 2011 02:54:42 GMT+00:00 Subject: Re: [pianotech] Fw: Replacing action bracket bolt Barb, I was talking with my old friend Isaac Sadigursky today. He read my post below and shared with me some Russian ingenuity to make the going even easier. First was to use an acorn nut in place of the standard hexnut. Number two is to use VJ lube (or Protek MPL) to coat the threads of the bolt (careful of the bass strings). And thirdly, a pipe nipple about two or three feet long, 1/2" inside diameter in case the some bending is necessary to meet up with the action bracket. Hope this helps. Tom Cole -------- Original Message -------- Subject: Re: [pianotech] Fw: Replacing action bracket bolt Date: Tue, 18 Jan 2011 13:13:55 -0800 From: Thomas Cole <tcole at cruzio.com> Reply-To: pianotech at ptg.org To: pianotech at ptg.org Barb, If there are flats in the smooth part of the shaft, then the right size metric wrench to install it. Otherwise you will need to get a nut (metric, of course) to drive the new bolt home. If the threads don't go all the way to the shoulder then you'll need to add some washers to keep the nut on the threaded part. Tom Cole On 1/18/11 12:11 PM, Barbara Nobbe wrote: > Aahhh! My computer sent my email before I was done! Sorry folks! Lol. > > Anyway, as I was saying, it looks like the new action bracket bolt > simply screws into the back of the piano like a large bolt (hence, the > name). Which would mean to get the old bolt out, I would have to > unscrew it out. My question is though, is there a certain wrench or > tool to use to get a good grip around the bolt so as not to mar it > up? Also, is there any thing I might be missing? Could the job > really be as easy as it sounds? > > Attached is a picture of the new bolt to help any visual thinkers like > myself. Thanks in advance for your help! I'm done with my question > for now, so I'll hit the send button... > > Barb Nobbe, RPT > Lexington, KY > > > -----Original message----- > > *From: *Barbara Nobbe <barbara at pitchperfectpianos.com>* > To: *pianotech at ptg.org* > Sent: *Tue, Jan 18, 2011 20:00:46 GMT+00:00* > Subject: *Replacing action bracket bolt > > Hello all, > > I have stumbled into a P22 where the middle action bracket bolt > threads are cross-threaded so I couldn't get the knob back on to > secure the action back in place. (Not to mention, it was a booger > trying to get the knob off the cross-threads to remove the action > for work...but I digress) > > Anyway, Yamaha has sent me a new bolt and now it's time to swap > the good for the bad. I have never done this before, so I thought > I would call for back up before making my attempt. > > It looks to me that the action bracket bolt > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20110118/eadfe152/attachment.htm>
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