installing Ibanez mono-rail IV (MR4), GOTOH machine-heads

Discussion in 'Hardware, Setup & Repair [BG]' started by Killed_by_Death, Jun 26, 2019.

  1. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    Finally got tired of the gold-plated hardware, so I'm making the change over to cosmo black.
    Package arrived at Walgreen's this morning, 3 days after I ordered, directly from Ibanez PA.
    (2-1/2 business days)

    They were triple-bagged. The screws & wrench in a tiny bag, in another bag with the saddle & all in a 3rd bigger bag:

    First thing I did was put a capo on loosely so I could remove the ball-ends from the saddles & not have to rewind the strings onto the posts when I'm done:

    Here's a shot of the empty cavity, & the itsy bitsy teeny weenie ground-wire:

    I was careful to get the screw into the loop of the wire when putting them on.
    Unfortunately we have a little snag, one screw was too big:

    For the moment I just used one gold screw under the intonation screw on one of them & if I didn't tell you, I doubt you'd notice.
    I will contact Ibanez about getting a another screw.

    All-in it went well, done in 30 minutes. Waiting for the cosmo black strap-buttons & time to make an order for some cosmo black Res-O-Lites from GOTOH, which should help me lose 1/4 pound from the headstock.
    Bartrinsic likes this.
  2. Bartrinsic

    Bartrinsic Supporting Member

    Jan 6, 2018
    San Diego
    Do you have a photo of the finished job (gold screw OK)!
    Killed_by_Death likes this.
  3. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    Hmm, how did I forget that?

    Another thing I forgot to mention, is to turn the screws counterclockwise to "start" threads.
    You can feel the screw drop down into the previously cut threads & that's when it's time to reverse & start turning clockwise.
    Otherwise if you move that screw in & out cutting new threads every time, eventually it will be stripped out.
    timplog likes this.
  4. Bartrinsic

    Bartrinsic Supporting Member

    Jan 6, 2018
    San Diego
  5. charlie monroe

    charlie monroe Gold Supporting Member

    Feb 14, 2011
    Buffalo, NY
    I don’t get along well with gold hardware.

    This was a job worth doing and a job well done.
    Killed_by_Death likes this.
  6. ProfFrink


    Jan 16, 2015
    FWIW, I actually like the gold hardware on my SR1200L, and this was surprising to all involved including myself. I haven't thought of myself as a gold guy until I got my bass. Even my wedding ring is not gold.

    I do see where you're coming from replacing them though.

    QQ: Any idea what are the slanted grooves under there for? Very strange...
  7. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    I thought it would grow on me, but every time I tinkered even a little I took some of the gold-plated finish off!
    Just last weekend I took the gold off the top of this machine-head screw:

    Over time the gold has completely worn off the aft strap-button:

    There are other marks here & there where it seems if you merely touch the gold with a screwdriver, Voila!, away goes the finish!
    Matt Liebenau likes this.
  8. sissy kathy

    sissy kathy Back to Bass-ics Gold Supporting Member

    Apr 21, 2014
    Arbutus, MD
    Those are tone grooves, they keep your strings from going sharp.

    Seriously, could it give the insulated portion of a ground wire a place to sit if you should run an insulated ground?
  9. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    Sent an eMail to Hoshino on the day I installed them, but didn't see anything back.
    Called them just now & it turns out they had shipped me another screw, but didn't respond to my eMail.
    Sure enough, I checked the Informed Delivery page on & there it is!

    In other good news, the GB-350 machine-heads will arrive tomorrow, along with a cosmo-black bridge for my GSR100.

    Cosmo Black strap-buttons installed yesterday:

    This is the GOTOH EP-B3, 17mm diameter:
    Last edited: Jun 28, 2019
  10. non


    Aug 4, 2015
    kbd, do you have a link to the machine heads?
    i love cosmo black hardware and would love check to these out for a future build.
    Last edited: Jul 6, 2019
  11. Killed_by_Death

    Killed_by_Death Snaggletooth Inactive

    Zooberwerx likes this.
  12. Aidil


    Dec 4, 2014
    Jkt, IDN
    I posted this on another thread which I went the other way around:

    from Cosmo Black to Gold... :D