Here's a magnetic induction heater which might be used to heat tuning pins:
Magnetic Induction Heater Kit:
https://www.ebay.com/itm/324461705465?hash=item4b8b6cb8f9:g:Z20AAOSwvBRgUWkCAbout $200. Used in automotive industry to heat frozen bolts.
Paul McCloud
San Diego
Scott Cole:
Greetings all,
I'm in a bit of a pickle. Likely just the tip of the pickle, as it were.
I have a Yamaha G2 in the shop for a restring and cleanup. It looks like a pack of cats had inhabited it. The strings were extremely corroded, and there are bubbles of corrosion on the plate. I'm stuck on one of the first tasks: removing the tuning pins. However, they're not just stuck, they are STUCK. The tip on my tuning lever keeps coming off. My power drill with adapter tip can't handle it. As you can see in the photo below, the corrosion reaches a way into the holes (if you can't see it, trust me...).
I'm wondering at this point if some kind of chemical is warranted: 3-in-one oil? WD-40? Mystery oil additive? Balsamic vinaigrette? If I were into homeopathy, I'd try even MORE cat pee. But I'm not, and anyway I heard the cat pee pipeline was attacked by hackers and they're all out.
Any ideas about how to get these pins out? I even firmly attached a vise-grips to my drill adapter--pins will barely budge. I'm lucky I got the one out.
------------------------------
Scott Cole, RPT
rvpianotuner.com
Talent, OR
(541-601-9033
Original Message:
Sent: 5/13/2021 8:29:00 PM
From: Scott Cole
Subject: Help! Stuck pins due to feline corrosion
Greetings all,
I'm in a bit of a pickle. Likely just the tip of the pickle, as it were.
I have a Yamaha G2 in the shop for a restring and cleanup. It looks like a pack of cats had inhabited it. The strings were extremely corroded, and there are bubbles of corrosion on the plate. I'm stuck on one of the first tasks: removing the tuning pins. However, they're not just stuck, they are STUCK. The tip on my tuning lever keeps coming off. My power drill with adapter tip can't handle it. As you can see in the photo below, the corrosion reaches a way into the holes (if you can't see it, trust me...).
I'm wondering at this point if some kind of chemical is warranted: 3-in-one oil? WD-40? Mystery oil additive? Balsamic vinaigrette? If I were into homeopathy, I'd try even MORE cat pee. But I'm not, and anyway I heard the cat pee pipeline was attacked by hackers and they're all out.
Any ideas about how to get these pins out? I even firmly attached a vise-grips to my drill adapter--pins will barely budge. I'm lucky I got the one out.
------------------------------
Scott Cole, RPT
rvpianotuner.com
Talent, OR
(541-601-9033
------------------------------