How to rebuild a Marzocchi 20mm hub?- Mtbr.com
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  1. #1
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    How to rebuild a Marzocchi 20mm hub?

    I got caught out in the rain and now my hub feels gritty and is making noise. I couldn't find anything on Marzocchi's web site on how to disassemble the hub. Any suggestions? FWIW it's a 2002 hub.
    Happiness is a warm 2 stroke.

  2. #2
    Meh.
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    Sealed cartridge bearings. Bring it to your shop. They'll press the old ones out and press new ones in.

  3. #3
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    hey steve,

    I haven't looked at a marz hub in a while but if its like a formula you should be able to slide the axle about half way in (or less maybe) and use it to lever the bearing out. Then you could replace or pull off the seals and clean and relube.

  4. #4
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    Quote Originally Posted by airwreck
    hey steve,

    I haven't looked at a marz hub in a while but if its like a formula you should be able to slide the axle about half way in (or less maybe) and use it to lever the bearing out. Then you could replace or pull off the seals and clean and relube.
    yep, what airwreck said. If you can get the bearings out without totally messing them up, you can take a pen-knife to pull the seals off, clean the bearings (dry out using air hose or something similar) and then repack them with grease.

    the trick is going to be pulling the current bearings out. Not an easy chore. Also, they're likely a standard size, so even if you did mess them up when removing them, you could probably get replacements easily.

    EBX

  5. #5
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    Hey thanks for the info guys. I'll try to get some backup bearing before I mess with these ones. I wonder if there is something wrong with the seals though. Seems a bit odd that they would pack it in after just one ride in the rain.
    Happiness is a warm 2 stroke.

  6. #6
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    Quote Originally Posted by Steve71
    Hey thanks for the info guys. I'll try to get some backup bearing before I mess with these ones. I wonder if there is something wrong with the seals though. Seems a bit odd that they would pack it in after just one ride in the rain.
    Steve, Didn't you say the hub is from '02 though?? If so, it seems like this might have been a long time coming and one rainy ride wouldn't make or break it. 4 years for a hub is pretty long, no?

    Cheers,
    EBX

  7. #7
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    Quote Originally Posted by ebxtreme
    Steve, Didn't you say the hub is from '02 though?? If so, it seems like this might have been a long time coming and one rainy ride wouldn't make or break it. 4 years for a hub is pretty long, no?

    Cheers,
    EBX
    The hub was an 02', but it hardly got used at all (due to injury & buying a house) until this season. I wanted to build up another wheel with a Marzocchi hub so I could choose between two font tires without messing with the caliper alignment, but now I'm not so sure... maybe the seals rotted a little from sitting in the garage or something.
    Happiness is a warm 2 stroke.

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