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Trumpet Discussion Discuss minor TR300 rebuild questions in the General forums; A lot of good info to digest. You have replaced the springs and one "nylon piece" Valve Guide. I would ...
  1. #11
    Pianissimo User Rushtucky's Avatar
    Join Date
    Sep 2008
    Indianapolis, Indiana

    Re: minor TR300 rebuild questions

    A lot of good info to digest. You have replaced the springs and one "nylon piece" Valve Guide. I would consider replacing the other two Valve Guides since the other two are perhaps worn. Put one or two drop of valve oil on them and slide them up and down a few times.

    Since you are still experimenting, stay away from "lapping" your valves until you become more experienced technically. Have your local technician do that.

    One thing that you may consider, as stated above, is give your horn a "good" bath, which you should do every other month. Take all of the slides out and put LUKE WARM vinegar in them and let it soak for about 20 minutes. This will loosen up some of the gunk that may be there. Then rinse throughly and set them in the tub with the horn.

    As for the valves, take Liquid Green and spray the valve casings and brush with a valve brush. Rinse throughly and put in the tub to soak. The valves themselves, clean with Liquid Green, then rinse and clean them with liquid dish detergent. Rinse throughly and let dry. Then wipe with a micro cloth. Apply piston valve oil. (Be sure to remove all of your felt pads before doing this)

    Dry your horn and reassemble and let's see what happens.
    Indianapolis, Indiana

    "It is not necessary to understand music;
    it is only necessary that one enjoy it"
    Leopold Stanislaw Stokowski

  2. #12
    Pianissimo User
    Join Date
    Nov 2008
    Dryden/Ithaca, NY

    Re: minor TR300 rebuild questions

    Just an update of where I'm at. (And I hadn't seen George's post yet.)

    I've replaced all the springs and all the pads. I'm trying Hetman's #2. #3 was such a huge improvement over where I'd been earlier that #1 felt far away... but we'll see how it goes. Valve oil is fortunately cheap enough to experiment with!

    For now I've left the old nylon valve guides on 1 and 2 - I'd like to see how different (if at all) the new one on the 3rd valve feels. Then I'll change it.

    Right now, though, it feels like a new trumpet! And I'm sure it'll feel better when I get to clean it, hopefully next weekend.

    Thanks to everyone for all your help!
    Simon St.Laurent
    Bach TR300 / 5C
    "Maestro" valve trombone
    "Orpheum Super" slide trombone
    Jupiter Brigadier Bugle
    Jupiter JST-314L slide trumpet

  3. #13
    Mezzo Forte User Darthsunshine's Avatar
    Join Date
    Jul 2008
    Seattle, WA

    Re: minor TR300 rebuild questions

    Quote Originally Posted by simonstl View Post
    Just an update of where I'm at. (And I hadn't seen George's post yet.)Right now, though, it feels like a new trumpet!
    Well, that's the important thing. Enjoy!

    1953 Mt. Vernon Strad 37 Cornet
    1966 Burbank Benge Eb/D
    1975 LA Benge 3x+
    1976 Strad 37*
    1978 LA Benge C
    1980 LA Benge 3x

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