Terry, John has an excellent point below. We have done a bunch of these over the years and find the following to give good results: 1) Clean the separation as well as you can. Tools: compressed air and a tool made of thin metal banding material (sold as soundboard cleaners in the supply catalogs) 2) Clamp the gap shut with as many pipe clamps as it takes to do the job. 3) Drill 3/8 holes thru plate screw holes with long electricians bit then blow chips out of holes 4) Release enough tension on the clamps to let the gap open enough to pour epoxy in the separation then reclamp and let set. 5) Insert carriage bolts from the back of the piano through the plate. Install washer and nut, trim excess bolt length if necessary. 6) Remove pipe clamps, pitch raise and tune. Nice to meet you in Arlington! Best, Dale Ward & Probst, Inc. Piano & Organ Service Dale Probst & Elizabeth Ward Registered Piano Technicians Wichita Falls, TX wardprobst@cst.net -----Original Message----- From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On Behalf Of John Dewey Sent: Tuesday, July 25, 2000 4:48 PM To: pianotech@ptg.org Subject: Re: Pinblock/Frame Separation I would not drill the bolt holes untill I had pulled the pin block back with pipe clamps (lots of pipe clamps) as far as possible or as far as I intend it to go. This will prevent the wood chips made while drilling the bolt holes from falling down in the gap and causing more problems. Once I have the pin block back in place I have always been able to take off 1 or 2 of the pipe clamps if they are in the way for drilling without the pin block moving. I am not sure, if once you let the tension down some, if letting it down more wil make tunning any harder so I let it down a lot (half to three quarter turn) so I know I am not fighting it. John Dewey
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