• FAQ  • Search  • Memberlist  • Usergroups   • Register   • Profile  • Log in to check your private messages  • Log in 

Chronically Sticking Second Valve


Goto page Previous  1, 2, 3
 
Post new topic   Reply to topic    trumpetherald.com Forum Index -> Horns
View previous topic :: View next topic  
Author Message
PMonteiro
Veteran Member


Joined: 29 Jul 2020
Posts: 130
Location: Hudson Valley

PostPosted: Tue Jul 20, 2021 11:28 am    Post subject: Reply with quote

It might also be worth looking at the slide grease. The 2nd valve slide isn't very long, so thinner greases applied there can run into the valve casing and slow it down.
_________________
YTR-6335HSII
YTR-2320
Accord in C
Back to top
View user's profile Send private message
dstpt
Heavyweight Member


Joined: 14 Dec 2005
Posts: 1272

PostPosted: Thu Jul 22, 2021 4:05 pm    Post subject: Reply with quote

I would not say that this is a cure-all valve oil, and I don’t use it on every horn I own, but Tech-Oil has seemed to remedy similar issues for me, and this is after doing most all of the things the OP tried.

http://www.brauninnovations.com/lubricant-oil

https://www.google.com/search?client=safari&rls=en&q=tech+oil+trumpet&ie=UTF-8&oe=UTF-8
Back to top
View user's profile Send private message
LowNoteSavant
Regular Member


Joined: 22 Jul 2021
Posts: 15

PostPosted: Fri Jul 23, 2021 7:11 am    Post subject: Reply with quote

What exactly did he do to lap the valve? Removing metal is a no...only time a valve ought to be lapped is at the factory to make the tolerance of the valve body/pistons more accurate.

Look at getting a competent tech. No freaking tech should be polishing and removing any damn metal unless they have a machinist shop and skill to do so.

Most likely it was a problem with the stem and valve guides/spring.

I don't mean to sound like an irate maniac, but I'm tired of folks getting the run around from "the tech"

If the valve is sticking it's most likely the spring isn't returning properly. Stems are usually soft aluminum alloy...As somebody else mentioned stems, check the stems you can easily swap them from valves...Let us know, also maybe swap springs from one piston to another and stem.

It's got to be more simple.
Back to top
View user's profile Send private message
cheiden
Heavyweight Member


Joined: 28 Sep 2004
Posts: 8910
Location: Orange County, CA

PostPosted: Fri Jul 23, 2021 10:26 am    Post subject: Reply with quote

My son had the 2nd slide bumped deforming the cylinder and after the tech straightened it out minor lapping was needed. Good techs lapp valves and know when to do it.
_________________
"I'm an engineer, which means I think I know a whole bunch of stuff I really don't."
Charles J Heiden/So Cal
Bach Strad 180ML43*/43 Bb/Yamaha 731 Flugel/Benge 1X C/Kanstul 920 Picc/Conn 80A Cornet
Bach 3C rim on 1.5C underpart
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    trumpetherald.com Forum Index -> Horns All times are GMT - 8 Hours
Goto page Previous  1, 2, 3
Page 3 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group