Time For Bumpers and Dubro Treatment?

[WessCollette]

This is a MackBrass TU410 that was purchased in the summer of 2018. I am thinking it is time to quieten it down.

https://youtu.be/9BWDFrrcfz0" target="_blank

[Ace]

Wow, pretty noisy. I had a 410 (Schiller) and used it three years and never had noise like that. Perhaps wrongly, I always assumed the Schiller 410 and Mack Brass 410 came from the same factory and were produced with the same level of workmanship and materials. (?)

Ace

[WessCollette]

All screws we're tight. I was hoping that was that problem, as I checked again just to be sure. The adjusters on the linkage were loose. Sounds better now. I don't remember having to make sure stuff was tight on my horn when I was in college. Maybe the professor always kept a check on that stuff.

[WessCollette]

The 1st and 5th valve still clank when the hit the bumper when pressed. I am thinking some new Bumpers will help that. Now to remember to bring my calipers with me when I go shopping for bumper material.

Bloke,what vacuum belt did you recommend using? It seems like you had mentioned one.

[WessCollette]

What tool should be used to tighten the adjusters on the link arms?

[WessCollette]

I have and the ones on the first valve keep loosening. I guess this is something I need to check on before playing every time.

[WessCollette]

Thankfully it isn't stripped. Thank you Mark and bloke for your help.

[WessCollette]

I messed with the 5th valve linkage today. Put a little pressure on it to slightly link it. No more noise. Thank you again!