Melodeon.net Forums

Please login or register.

Login with username, password and session length
Advanced search  

News:

Welcome to the new melodeon.net forum

Pages: [1] 2   Go Down

Author Topic: Air leak from frame corners  (Read 3383 times)

0 Members and 1 Guest are viewing this topic.

John MacKenzie (Cugiok)

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2360
  • Fettling... Learning to reed and right.
Air leak from frame corners
« on: May 25, 2018, 06:37:16 PM »

What is the best way to go about stopping the bellows frame corners from leaking, and with what?
(From the bellows side, not the body side)

Sir John
Logged
There is no beginning to my talent :)



: Hohner Club Modell 1. Bb/Eb, de-clubbed : Early Hohner Pressed Wood A/D : 1930's Varnished wood G/C:  Hohner Erika C/F: Bandoneon tuned D/G Pressed wood: Koch F/Bb; G/C Pre Corso

MikeK

  • Respected Sage
  • ****
  • Offline Offline
  • Posts: 352
Re: Air leak from frame corners
« Reply #1 on: May 25, 2018, 11:42:08 PM »

I've managed to stop such leaks by brushing a small amount of PVA in between the inside of the bellows and the frame.
I also let slightly diluted PVA seep into the outside corners and wipe with a damp cloth to clean up.
« Last Edit: May 25, 2018, 11:48:24 PM by havaLaff »
Logged
I always respect my elders but they are getting fewer in numbers.

MarioP

  • Regular debater
  • ***
  • Offline Offline
  • Posts: 217
  • Enjoying the MADNESS
    • AnyITsolution.Services
Re: Air leak from frame corners
« Reply #2 on: May 26, 2018, 03:37:42 AM »

Have you replaced the seal gaskets yet? You may have to do inside and boarders sealing like on my club and old beat up PreCorona ...
Logged
Hohner Corso A/D x2, G/C, Corona II A/D/G from the 60s.
Hohner Pre Corona II BsEsAs,Club IV C/F Pre-War, Liliput C/F, Mignon I (G) Piano from the 30s, Kromatica III from the 60s harmonica. Hohner Kids I. Pearl Forum series 80s, Zildjian, Sabían, Wuhan cymbals. Ludwig snare 70s.

Theo

  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 13730
  • Hohner Club Too
    • The Box Place
Re: Air leak from frame corners
« Reply #3 on: May 26, 2018, 09:26:24 AM »

For this application superglue works better than pva because will penetrate the full depth of the joint by capillary action. 
Logged
Theo Gibb - Gateshead UK

Proprietor of The Box Place for melodeon and concertina sales and service.
Follow me on Twitter and Facebook for stock updates.

diatonix

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 615
Re: Air leak from frame corners
« Reply #4 on: May 26, 2018, 10:25:33 AM »

For this application superglue works better than pva because will penetrate the full depth of the joint by capillary action.

That may be true, but I never encourage unexperienced customers to use superglue. The road to catastrophe is short...
Logged

Rog

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2296
  • Repair and tuning in Hants
Re: Air leak from frame corners
« Reply #5 on: May 26, 2018, 03:49:34 PM »

My solution is a temp card spatula, PVA, and a damp cloth to clean up.

invadm

  • Hero Member
  • *****
  • Online Online
  • Posts: 576
Re: Air leak from frame corners
« Reply #6 on: May 26, 2018, 04:39:50 PM »

why not take off the frame clean,paint than glue it back Sir John? you'll have a shiny new bellows  ;) 
Logged

tirpous

  • Hero Member
  • *****
  • Online Online
  • Posts: 1086
Re: Air leak from frame corners
« Reply #7 on: May 26, 2018, 07:59:39 PM »

Is the leak between the frame and bellows or in the corner joint between the 2 wooden pieces ?
Logged

John MacKenzie (Cugiok)

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 2360
  • Fettling... Learning to reed and right.
Re: Air leak from frame corners
« Reply #8 on: May 30, 2018, 02:59:48 PM »

I've cured it thanks. I brushed a generous amount into each inside corner, and into the wood joints too, just for luck. Much better now.

Sir John
Logged
There is no beginning to my talent :)



: Hohner Club Modell 1. Bb/Eb, de-clubbed : Early Hohner Pressed Wood A/D : 1930's Varnished wood G/C:  Hohner Erika C/F: Bandoneon tuned D/G Pressed wood: Koch F/Bb; G/C Pre Corso

MarioP

  • Regular debater
  • ***
  • Offline Offline
  • Posts: 217
  • Enjoying the MADNESS
    • AnyITsolution.Services
Re: Air leak from frame corners
« Reply #9 on: June 02, 2018, 04:15:57 PM »

Just for the giggles and if you want to go the extra mile I put another cheap fix and insulating in case your box still leaks from the gaskets or even strap holders holes etc: https://youtu.be/Bq5GwMAIQaA
Logged
Hohner Corso A/D x2, G/C, Corona II A/D/G from the 60s.
Hohner Pre Corona II BsEsAs,Club IV C/F Pre-War, Liliput C/F, Mignon I (G) Piano from the 30s, Kromatica III from the 60s harmonica. Hohner Kids I. Pearl Forum series 80s, Zildjian, Sabían, Wuhan cymbals. Ludwig snare 70s.

diatonix

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 615
Re: Air leak from frame corners
« Reply #10 on: June 02, 2018, 04:32:39 PM »

Just for the giggles and if you want to go the extra mile I put another cheap fix and insulating in case your box still leaks from the gaskets or even strap holders holes etc: https://youtu.be/Bq5GwMAIQaA

Could you please explain what this is supposed to be good for? I hope you only do this to your own instruments...
Logged

Theo

  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 13730
  • Hohner Club Too
    • The Box Place
Re: Air leak from frame corners
« Reply #11 on: June 02, 2018, 05:30:47 PM »

In UK we call that sort of thing a bodge.  A lazy way of trying to cover up a problem instead of identifying the real problem and fixing it permanently.
Logged
Theo Gibb - Gateshead UK

Proprietor of The Box Place for melodeon and concertina sales and service.
Follow me on Twitter and Facebook for stock updates.

Lester

  • MADman
  • Mods and volunteers
  • Hero Member
  • ***
  • Offline Offline
  • Posts: 9111
  • Hohners'R'me
    • Lester's Melodeon Emporium and Tune-a-Rama
Re: Air leak from frame corners
« Reply #12 on: June 02, 2018, 05:49:11 PM »

In UK we call that sort of thing a bodge.  A lazy way of trying to cover up a problem instead of identifying the real problem and fixing it permanently.

The use of 'bodge' in this manner annoys me as I live in the Chilterns where Bodging was a skilled trade of making chair legs on pole lathes in the Chiltern woodlands to supply the chair makers in High Wycombe.

https://www.youtube.com/watch?v=nP5_OJxNccY

There I feel better now  (:)

Theo

  • Administrator
  • Hero Member
  • *****
  • Offline Offline
  • Posts: 13730
  • Hohner Club Too
    • The Box Place
Re: Air leak from frame corners
« Reply #13 on: June 02, 2018, 05:57:17 PM »

Sorry Lester, yes you are quite right.  I should have said botch!
Logged
Theo Gibb - Gateshead UK

Proprietor of The Box Place for melodeon and concertina sales and service.
Follow me on Twitter and Facebook for stock updates.

Lyra

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 558
Re: Air leak from frame corners
« Reply #14 on: June 02, 2018, 11:06:52 PM »

Could you please explain what this is supposed to be good for? I hope you only do this to your own instruments...

erm

Just for the giggles
Logged

MarioP

  • Regular debater
  • ***
  • Offline Offline
  • Posts: 217
  • Enjoying the MADNESS
    • AnyITsolution.Services
Re: Air leak from frame corners
« Reply #15 on: June 02, 2018, 11:32:56 PM »

Just for the giggles and if you want to go the extra mile I put another cheap fix and insulating in case your box still leaks from the gaskets or even strap holders holes etc: https://youtu.be/Bq5GwMAIQaA

Could you please explain what this is supposed to be good for? I hope you only do this to your own instruments...

I do 🤣
Logged
Hohner Corso A/D x2, G/C, Corona II A/D/G from the 60s.
Hohner Pre Corona II BsEsAs,Club IV C/F Pre-War, Liliput C/F, Mignon I (G) Piano from the 30s, Kromatica III from the 60s harmonica. Hohner Kids I. Pearl Forum series 80s, Zildjian, Sabían, Wuhan cymbals. Ludwig snare 70s.

Tone Dumb Greg

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4929
    • Dartmoor Border Morris
Re: Air leak from frame corners
« Reply #16 on: June 02, 2018, 11:38:27 PM »

Just for the giggles and if you want to go the extra mile I put another cheap fix and insulating in case your box still leaks from the gaskets or even strap holders holes etc: https://youtu.be/Bq5GwMAIQaA

Could you please explain what this is supposed to be good for? I hope you only do this to your own instruments...

I do 🤣

I'm writing a new tune called The Humours of MarioP

 ;D
Logged
Greg Smith
DG/GC Pokerwork, DG 2.4 Saltarelle, pre-war CF Hohner, Hohner 1040 Vienna style, old  BbEb Hohner that needs a lot of work.

ACCORDION, n. An instrument in harmony with the sentiments of an assassin. Ambrose Bierce

Lyra

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 558
Re: Air leak from frame corners
« Reply #17 on: June 03, 2018, 12:34:55 AM »

I hoe you'll tape it for us when its done  >:E
Logged

Gena Crisman

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 1041
  • 🇬🇧
Re: Air leak from frame corners
« Reply #18 on: June 06, 2018, 09:00:33 PM »

Hello, I think I'm having an issue like this too, here are some photos, as I'm not sure quite how similar it is to the original problem that was posted about:




I've been noticing that the instrument hasn't felt *quite* as air tight as it has been previously, but had put it down to my monkeying with the keyboard to loosen some very tight key armatures. This, however, is definitely leaking air when pushed - tracked it down by following the sound of air, although it was right in front of me the whole time. Some of the other corners look a little dubious, but nothing as clearly a problem as the above shown.

PVA seemed to be the way to go for OP, but, I believe there's a variety of different flavours of it, including water soluble and water resistant varieties for wood, as well as book binders. Advice?

(Instrument is a Black Pearl II, for reference, and has seen a little rain in its time.)
Logged

rees

  • Hero Member
  • *****
  • Offline Offline
  • Posts: 4736
  • Windjammer
    • Wesson Accordions
Re: Air leak from frame corners
« Reply #19 on: June 06, 2018, 09:25:10 PM »

Resin W woodworking glue will do it.
Remove bellows.
Gently work glue into the gap with a spatula or small brush. Not too thick as there will be some squeeze out.
Clamp the bellows corner to the frame with a clothes peg, bulldog clip, whatever.
Carefully wipe off excess glue with a damp sponge.
Leave overnight.

Logged
Rees Wesson (accordion builder and mechanic)
Gungrog, Welshpool, Wales, UK
www.melodeons.com
Pages: [1] 2   Go Up
 


Melodeon.net - (c) Theo Gibb; Clive Williams 2010. The access and use of this website and forum featuring these terms and conditions constitutes your acceptance of these terms and conditions.
SimplePortal 2.3.5 © 2008-2012, SimplePortal