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Topic: Problem with changer fingers on MSA Classic |
John H. McGlothlin
From:
Raton, New Mexico
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Posted 6 Apr 2014 3:07 pm |
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I have the changer of an MSA Classic taken apart so I could clean it but cleaning with Naphtha and putting oil on them I notice that the scissor action is way to stiff and they do not fully move freely, the rivet holding the two parts together does not allow anything to get in between them so I figured the naphtha couldn't get in and clean it good. I takes a good amount of force to move the two parts and I think they should move freely so any suggestions as to how I might solve this mystery without bending something beyond repair. The only way that a razor blade would fit in between the two parts is if the blade only had one side to it but since it has two sides it is too thick.
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Marlen SD 10 3 and 5,Fender 5 String Banjo, Flinthill 5 string banjo,Johnson Resonator Guitar, Ibanez AFS75T Country/Jazz Guitar. |
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Donny Hinson
From:
Glen Burnie, Md. U.S.A.
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Posted 6 Apr 2014 4:49 pm
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| Naptha (or any other cleaner) doesn't need "space" between the parts. Capillary action will cary it into places too small to see. Place the parts in a plastic or metal container, and soak them overnight in naptha, carbureotor cleaner, or disc brake cleaner. (Cover the container with foil or a plastic bag to keep the liquid from evaporating.) Normally the parts will become quite free, and then all you have to do is lube and reassemble. |
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Mike Wheeler
From:
Delaware, Ohio, USA
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Posted 6 Apr 2014 5:42 pm
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I've been there, too. Like Donny said, soaking them will help, then, "exercise" the finger by opening and closing it like a scissors a bunch of times. It seems to help dislodge any last remnants of debris.
If that doesn't help, look closely to see if the two halves are rubbing/binding together. Those old Classic fingers could get bent pretty easily while still in the guitar. You might need to very carefully bend them apart a tiny little bit. I've had to do that on a couple of Classics that I rebuilt.
When done, they should flip-flop/pivot back and forth very freely...don't give up till they do. If they don't move freely, they could give you problems like sticking raises or lowers.
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Best regards,
Mike |
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Jim Smith
From:
Midlothian, TX, USA
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Posted 7 Apr 2014 1:30 pm
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| Another trick is to place the rivet head over a hole in a piece of metal or something and gently tap on the inside of the other side of the rivet. That will open up the gap slightly and free up the binding. If you go too far you can tighten it back up by tapping on the flared out part with a hammer. |
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Lane Gray
From:
Topeka, KS
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Posted 7 Apr 2014 1:32 pm
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If the problem is gunk, I think I prefer solvents to loosening the rivets. Soak in aggressive stuff.
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2 pedal steels, a lapStrat, and an 8-string Dobro (and 3 ukes)
More amps than guitars, and not many effects |
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