Martin square tube truss rod removal

0018G
Posts: 30
Joined: Wed Jul 11, 2012 9:23 pm
Location: Beloit, KS

Martin square tube truss rod removal

Post by 0018G »

Anyone have any tips or tricks for getting enough heat in a Martin square tube rod to get the epoxy to release for removal?

Thanks
tippie53
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Re: Martin square tube truss rod removal

Post by tippie53 »

why are you taking it out?
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
0018G
Posts: 30
Joined: Wed Jul 11, 2012 9:23 pm
Location: Beloit, KS

Re: Martin square tube truss rod removal

Post by 0018G »

Conversion to adjustable rod.
tippie53
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Joined: Fri Mar 03, 2006 7:09 pm
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Re: Martin square tube truss rod removal

Post by tippie53 »

heat
try a heat lamp wrap aluminum foil around some cardboard and expose the rod protect the neck and let heat do the job
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
0018G
Posts: 30
Joined: Wed Jul 11, 2012 9:23 pm
Location: Beloit, KS

Re: Martin square tube truss rod removal

Post by 0018G »

Good idea, John. I used to do all my heating that way, but the blankets have spoiled me.

Thanks!
tippie53
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Joined: Fri Mar 03, 2006 7:09 pm
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Re: Martin square tube truss rod removal

Post by tippie53 »

this is what you need I dont have a blanket for that LOL
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Kbore
Posts: 299
Joined: Sun Jun 25, 2017 3:58 pm
Location: St. Louis area

Re: Martin square tube truss rod removal

Post by Kbore »

Could you post a picture? Would like to see what you have going. Do you have access to the interior of the tube?
Measure Twice,

Karl B
tippie53
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Re: Martin square tube truss rod removal

Post by tippie53 »

yes but it is about 14 in long epoxied in
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Kbore
Posts: 299
Joined: Sun Jun 25, 2017 3:58 pm
Location: St. Louis area

Re: Martin square tube truss rod removal

Post by Kbore »

Thinking out loud- a 12v car battery connected across the length would turn a metal rod RED hot, so I’ve been told. It will turn a ratchet Handle into a 1000 watt heater. AC house current, in series with a incandescent light bulb would also turn it red hot and not blow the breaker. A variac could be used to control the heat dissipated by the rod. An AC Heater element ( just for the load, not the heat) could be used in series with the rod. Just thinking, use the truss rod itself as the heat source. This would also be dangerous and unsafe in an uncontrolled environment. Don’t try it at home.
Measure Twice,

Karl B
tippie53
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Joined: Fri Mar 03, 2006 7:09 pm
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Re: Martin square tube truss rod removal

Post by tippie53 »

too much heat
glue will fail about 145F
charring the wood is the last thing you want to do.
Yes a car battery will make it hot but you cannot control it
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
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