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Pt.2 Shimano Dura ace 7700 9 speed shifter: Rebuild service clean disassembled taking apart repair

Watch out going to far undoing this. It becomes a nightmare to put back together. Part 2 of the Dura Ace 7700 shifter rebuild. This is for the 9 speed side which ended up being slightly different internally. If anyone has idea’s on removing those 4 pin bolts, let me know.

Пікірлер: 7

  • @jimewing8361
    @jimewing8361 Жыл бұрын

    Thank you, this was really helpful. I managed to save a 9 speed shifter after watching this a few times.

  • @viscount6287
    @viscount62879 ай бұрын

    Thank you Atboy for showing us that this task although relatively complex, just has to followed patiently step by step.

  • @johnmckenna6203
    @johnmckenna620326 күн бұрын

    Excellent video, thanks.

  • @TimothyTakemoto
    @TimothyTakemoto3 ай бұрын

    I am up to the warning. My cable end is stuck so if I don't go further the lever is junk. But alas on mine, the ST7800 the Philips screw at the back, at 4:40 is surrounded by a "don't turn me" washer bent up all around the screw on eight sides, and the Philips screw itself appears to have been made out of a particularly soft metal so that the cross of the Philips head stripped rather than allow the screw to open. I think I used the right sized screw driver, and put all the force pushing my driver into the screw as I could manage but all the same, it was not turning and I went and stripped it. They really don't want me to get to the mechanism. Perhaps I could drill the screw out. Perhaps when the bolts are back on the nose, the Philips screw does not need to be there. I have a special reverse threaded drill tool designed to remove stripped screws. I will try that. Thanks for the video.

  • @johnmckenna6203

    @johnmckenna6203

    26 күн бұрын

    Just had the same problem with a stuck cable. I put the exposed cable end and clamped it in a vice then pulling hard tension on the cable I was able to click the shifter to zero and the cable pulled right out. Good luck.

  • @TimothyTakemoto

    @TimothyTakemoto

    25 күн бұрын

    @@johnmckenna6203 Alas the the standard method that you describe was not possible. Nor was I able to dismantle the assembly because the screw holding it together has a flanged washed designed to prevent it being undone. I have not given up. More modern brifters have a removable plate at the bottom, to allow removal of stuck cables. So I am think I will try to open a round hole in the bottom of the casing with a drill, and if I can thereby remove the cable, clise the he afterwards with a rubber bung.

  • @rediryou

    @rediryou

    25 күн бұрын

    @@TimothyTakemoto Bummer yeah sounds like it's jammed good. Good luck.