No, the old holes are larger than any currently available pins. dp OK, sorry, I miss understood One way that might work is to use impact resin, the same stuff that I've used to repair soundboards. Mix up a small batch in a nut cup, or something similar, poor a little into each hole, put in a pin, and wipe off the excess. This stuff takes about 15 minutes to set up, so you have time to do a bunch of pins. Once cured, the impact resin is hard as a rock. Back in St. Louis I bought it at a plastic maker. Here in Hawaii, the locals use it to repair surfboards. It's also used the repair cracks in fiberglass boats. Wim -----Original Message----- From: Porritt, David <dporritt at mail.smu.edu> To: caut at ptg.org <caut at ptg.org> Sent: Tue, Mar 16, 2010 10:09 am Subject: Re: [CAUT] Guide rail pins No, the old holes are larger than any currently available pins. dp David M. Porritt, RPT dporritt at smu.edu From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of wimblees at aol.com Sent: Tuesday, March 16, 2010 2:51 PM To: caut at ptg.org Subject: Re: [CAUT] Guide rail pins I’m rebuilding a Baldwin R and on removing the corroded and pitted key pins, I discovered that the base of the guide rail pins are 0.177”. The top (swaged) part is a standard 0.146” but the part that is driven in the key frame is oversized. Of course no one has replacement pins like this so I’m going to have to make some modifications. Everything that I’ve thought of so far has looked like a major operation, and will leave lots of opportunity for errors. Has anyone run into this before? What did you do? dave So the new pins are bigger than the holes? Would it be too difficult to ream out the existing holes? Wim -----Original Message----- From: Porritt, David <dporritt at mail.smu.edu> To: caut at ptg.org <caut at ptg.org> Sent: Tue, Mar 16, 2010 9:46 am Subject: [CAUT] Guide rail pins I’m rebuilding a Baldwin R and on removing the corroded and pitted key pins, I discovered that the base of the guide rail pins are 0.177”. The top (swaged) part is a standard 0.146” but the part that is driven in the key frame is oversized. Of course no one has replacement pins like this so I’m going to have to make some modifications. Everything that I’ve thought of so far has looked like a major operation, and will leave lots of opportunity for errors. Has anyone run into this before? What did you do? dave _________________________ David M. Porritt, RPT 3024 County Road 2134 Caddo Mills, TX 75135 dporritt at smu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/caut.php/attachments/20100316/1fec8c70/attachment.htm>
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