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Cheap jack rebuild

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  • Cheap jack rebuild

    I am trying to fix a motorcycle jack pump.

    Does anyone have a source for these? The outside of the cylinder is .5" and the piston groove is .275" inside and .2" long with a backing ring of .050" thick. The top seal is just a wiper. I've been looking at so many different sites I am about to give up and just use a Harbor Crap bottle jack in its place. The photo is not mine but close.

    So I post and I find it on E-bay.
    Last edited by outlawspeeder; 08-25-2019, 09:40 PM.

  • #2
    You may be able to substitute a standard seal, or o ring if you know the dimensions. I presume the jack is fail safe in use, in that it will just lower the bike down to the floor if the jack leaks.