[TPIN] Black stuff in valve port

[Richard Mason]

It sounds like it is some stuff left over from the manufacturing process.  Your repair lady could probably just target the offending port and give it a mini-chem cleaning to fix the problem.
   
  Richard Mason
  Denver, CO


Eric Bolvin <ebjazzz at comcast.net> wrote:
  Question here;
Am getting a black buildup in one of the ports of my third valve. The stuff is really hard to get off. I had my repairwoman look at it and she got it off with a chem clean. 
Now a week later, it's back. She said it may be some kind of reaction. 
The horn is a brand new Yamaha Xeno RGSM. I snake the leadpipe and tuning slide daily and the horn is clean but this stuff still shows up. It's like dug into the metal of the valve port. 
I use Holton oil if that info helps anyone.
Any ideas on how to stop this or clean it??

Thanks!!~

Eb

Eric Bolvin
The Really Big Student Songbook
The Arban Manual
www.BolvinMusic.com
www.myspace.com/ericbolvin 
408.236.2009 
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Richard Mason, MSEE, MCSE, MCDBA

Dazzle Development Corporation

Centennial, CO 80122

303-792-3475

 
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