I recently got a horn with an Edwards Power Bore valve, but I find it super sluggish/hard to press compared to my old A47 valve. Does anyone have any recommendations on aftermarket parts to improve the valve quickness?
-Thanks!
Does anyone know to make the Edwards Power Bore valve quicker?
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- Burgerbob
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
Is it clean and lubed?
Aidan Ritchie, LA area player and teacher
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
Linkage included?
Aidan Ritchie, LA area player and teacher
- paulyg
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
You can always get a beefier spring.
A modern valve like that should be pretty quick, though. When was the last time you really cleaned it/had it cleaned?
A modern valve like that should be pretty quick, though. When was the last time you really cleaned it/had it cleaned?
Paul Gilles
Aerospace Engineer & Trombone Player
Aerospace Engineer & Trombone Player
- LeoInFL
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
I've experienced something similar with my Getzen 3047. After disassembling the valve for a thorough cleaning, I accidentally put one of the miniball rod ends 'backwards' in the linkage. The action was so bad I thought I broke/bent something during cleaning. Try flipping one rod end and see it that helps. I use Hetman's linkage oil and it works great.
LeoInFL
Getzen 4047DS :
~Bousfield S
~Conn 5G | Edwards .525"
Olds P-24G : G&W Mark-1 | Wessex .555"
Melton 41 F Cimbasso : DE CB S118_L*_L16Am
Holton 77 Fr Horn : Laskey 825G
CFCA Symphony Orch
(2016-2023)
Getzen 4047DS :
~Bousfield S
~Conn 5G | Edwards .525"
Olds P-24G : G&W Mark-1 | Wessex .555"
Melton 41 F Cimbasso : DE CB S118_L*_L16Am
Holton 77 Fr Horn : Laskey 825G
CFCA Symphony Orch
(2016-2023)
- pedrombon
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
My Edwards T-350CR-E (PowerBore rotor) has a short, smooth and fast valve action from day one.
I've been using Hetman #11 for the rotor, #13 for the spindle and #15 for the minibal and it works like the first day.
Your valve probably needs a professional cleaning...
I've been using Hetman #11 for the rotor, #13 for the spindle and #15 for the minibal and it works like the first day.
Your valve probably needs a professional cleaning...
Sonas Artist
Granada Brass
Orquesta Ciudad de Almería
Granada Brass
Orquesta Ciudad de Almería
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
I'm not sure if this will help or not, but I have a horn that reacts strangely to lubrication. If I am careful to put Hetmans in it, it inevitably slows down to the point of binding. If I stop lubricating it altogether, it works better the longer it goes without. I think there is something in there that absorbs Hetmans and swells. Last time I had that horn in the shop, I had the tech lap the valve, which should have cleaned it, but it came back like this. So I've given up oiling it, and it works better every week. It's an oversize brass valve core - Kanstul.
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
OTOH Hetman 11 made my Yamaha playable.
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
It's a brand new valve, I think it's just the spring is heavier than I'm used to.pedrombon wrote: ↑Tue Jun 22, 2021 8:40 am My Edwards T-350CR-E (PowerBore rotor) has a short, smooth and fast valve action from day one.
I've been using Hetman #11 for the rotor, #13 for the spindle and #15 for the minibal and it works like the first day.
Your valve probably needs a professional cleaning...
-Thanks!
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- Joined: Mon Mar 29, 2021 10:20 am
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
I'll try to leave it for a week and see if it gets better! Thank you for the advice!hyperbolica wrote: ↑Tue Jun 22, 2021 12:21 pm I'm not sure if this will help or not, but I have a horn that reacts strangely to lubrication. If I am careful to put Hetmans in it, it inevitably slows down to the point of binding. If I stop lubricating it altogether, it works better the longer it goes without. I think there is something in there that absorbs Hetmans and swells. Last time I had that horn in the shop, I had the tech lap the valve, which should have cleaned it, but it came back like this. So I've given up oiling it, and it works better every week. It's an oversize brass valve core - Kanstul.
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- paulyg
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
"Brand-New" does not always mean "clean."
Paul Gilles
Aerospace Engineer & Trombone Player
Aerospace Engineer & Trombone Player
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
Have you busted the valve open? If I had a sluggish valve, I'd pop it open and clean it, inspect it, and then use the right types (plural) of Hetman's on it. Light, bearing, and ball joint.
Not knowing what is in there and saying some types work better than others is making an uniformed decision.
Not knowing what is in there and saying some types work better than others is making an uniformed decision.
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Re: Does anyone know to make the Edwards Power Bore valve quicker?
Can you send it back to Edwards for “calibration”?