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Aug 4, 2020 - 5:47:27 PM
903 posts since 10/31/2007

I picked up a Thomas five string that arrived today.
It has nice looking gold Five Star tuners. Two of the peghead tuners have separated where they are crimped.
I have the gears and of course, they fit back together, but they are not going to stay together without some help.
Is there any hope for these going back together and holding up to normal use?

Tom in Maine
(Get it? I got a Thomas banjo. Got it for the name and then realized it was a really good banjo!--Pics to come!)

Aug 4, 2020 - 6:12:46 PM

903 posts since 10/31/2007

Just found info in the archives and will visit my friend Nat, the machinist tomorrow to see if we can press and crimp them together.

Aug 5, 2020 - 5:48:45 AM
likes this

beegee

USA

21825 posts since 7/6/2005

I'd check with Stew-Mac and see if they'll replace.

Aug 5, 2020 - 6:59:20 AM
like this

7581 posts since 8/28/2013

Putting crimped tuners back together is pretty much like trying to squeeze toothpaste back into the tube.

Aug 5, 2020 - 7:24:12 AM

3270 posts since 5/29/2011

I see you've tried that too, George.

Aug 5, 2020 - 8:14:17 AM

903 posts since 10/31/2007

I have pressed them back together. Not sure about crimping. My machinist friend is going to have a look. They seem pretty solid.
Was wondering about some gel cyanoacrylate on the top seam.
What could go wrong using glue on a tuner?!

Aug 5, 2020 - 11:44 AM
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7581 posts since 8/28/2013

Possible problems with glue:

1. If you're not extremely areful, you might glue the gears together.
2. Many glues have poor sheer strength, so twisting forces on a glued seam might break it loose.

I agree with Bob Gaddis: before trying anything, check with Stewart McDonald and see if they'll replace them. They certainly won't if they've been glued in place or otherwise monkeyed with.

Aug 5, 2020 - 12:03:34 PM
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3270 posts since 5/29/2011

Cyanoacrylate glue can has very poor sheer strength. For holding something it works fine but it can't withstand movement.

Aug 5, 2020 - 5:52:07 PM

27 posts since 10/9/2016

I second what beegee says. Stew Mac may help you.

Edited by - toetapper on 08/05/2020 17:53:20

Aug 5, 2020 - 6:25:44 PM

banjonz

New Zealand

10978 posts since 6/29/2003

A few years ago as payment for reconstituting a Robin Smith custom Gibson RB18 copy, I received a whole shipload of banjo parts. Amongst them were 4 x 5 Star tuners. 3 were busted in the way described here and two had attempts of repairs using solder. The job looked terrible and I wouldn't trust them on an instrument. I looked at various way of repairing them but gave up.

Aug 5, 2020 - 6:48:01 PM

903 posts since 10/31/2007

Put them on the neck and tried tuning. More hilarity ensued. Will post a new thread and will also check with Stewmac. They have always been great to deal with.

Aug 6, 2020 - 5:32:19 AM

697 posts since 6/11/2003

Stew Mac will replace them, call.

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