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Help with small bass repair

Discussion in 'Bass Guitars' started by PooBone, Apr 14, 2011.

  1. PooBone

    PooBone

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    My Rockbass Fortress (2010, 4-string) has an issue around the pickup. The upper P pickup's screws at the top and bottom are very loose. I usually rest my thumb on top of this one and there's a small groove worn into the wood from it, but my bigger issue is the screws. Sometimes after a couple hours of practice or an hour into a gig, the P pickup under the E and A string is raised. One time I had it spring out mid-song and it was muting the top string. I had to hold it down with my index finger while plucking the rest of the song with my middle finger.
    What I've been doing is just pushing down on the pickup and using my fingers to tighten the top and bottom screws but the problem is getting more frequent. I've thought about taking the screws out and filling them with wood glue but I'm worried that might make it harder to adjust it in the future if I need to. I'm not much of a Warwick/bass technician so any advice on how to handle this little issue would be much appreciated. Thanks guys!
     
  2. schlobodan

    schlobodan Warwick Streamer Specialist Good Vibe Sponsor

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    Hi, take them out and put a piece of a tooth pick in the wholes before you put the screws back in.

    That will fix it for sure.
     
  3. Eberbachl

    Eberbachl

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    Are the screws screwed into the timber, or into a metal thread brass insert?
     
  4. schlobodan

    schlobodan Warwick Streamer Specialist Good Vibe Sponsor

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    in a Rockbass in the timber I suppose?
     
  5. PooBone

    PooBone

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    I actually am not sure I haven't removed them completely yet.
     
  6. schlobodan

    schlobodan Warwick Streamer Specialist Good Vibe Sponsor

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    if it is a wood screw - it is in the timber
    if it is a machine screw (metric) its not:)
     
  7. PooBone

    PooBone

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    would the toothpicks work with either?

    It's whatever screws come with those MEC precision pickups. I am not at my bass right now so I can't check.
     
  8. schlobodan

    schlobodan Warwick Streamer Specialist Good Vibe Sponsor

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    no - the machine screw has a screw nut out of brass set in the wood.

    Toothpick is for regular wood screws
     
  9. Eberbachl

    Eberbachl

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    All the Rockbasses (Corvettes and Streamers) I've had have had the brass machine thread inserts, except my very first RB Streamer - a very early one, which used timber screws and foam under the pickups. I'm going to assume the Fortress also uses the metal thread inserts.

    It sounds like an insert has come loose - you need to remove the pickups and assess the extent of the damage. It may be that you can press it back in if the surrounding timber is in good condition and bleed a little ultra thin cyanoacrylate adhesive around it before re-installing the pickups. If the surrounding timber has torn apart, the best repair would be to remove the insert, drill out the hole - glue a dowel flush in the hole, then drill the correct sized receiving hole and re-insert the brass insert.

    If you're not comfortable with any of the above, I would ask a luthier to take a look. If you were in Melbourne, I'd do it for you.

    Cheers,

    Luke.
     
  10. Chasbo

    Chasbo

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    I experienced the same exact problem with my Rock Bass $$. I removed the strings, removed the pup and discovered that the screw into the pup was secured by a brass nut. A small drop of Crazy Glue to the bottom of the nut and placed back in to where it came from did the trick. No issues since. Good luck.
     
  11. PooBone

    PooBone

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    Thanks guys, she's currently back in tip top shape. Managed to fix a little volume issue I had in the process where the two lower strings were louder than the high strings. Probably because the p/ups weren't level.
     
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