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Vent/breather valve on the pumpkin

Discussion in 'XJ Technical Chat' started by sybe, Jul 23, 2019.

  1. sybe

    sybe Active Member

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    Does anyone the best way to replace the vent/breather value on the pumpkin? Mine got damaged and i have a replacement for it. I have no clue how to extract it without breaking something. I thought it would be a easy pull, but it looks sealed.
     
    sybe, Jul 23, 2019
    #1
  2. Colin 85 700

    Colin 85 700 Active Member

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    Try heat and an easy out, if it wont turn then its cast in and will have to be drilled out
     
    Colin 85 700, Jul 23, 2019
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  3. XJ550H

    XJ550H Well-Known Member Premium Member

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    Note that these valve "press-fit" into the final drive housing.
    a little heat ought to get it moving for you
     
    XJ550H, Jul 23, 2019
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  4. sybe

    sybe Active Member

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    So it sounds like once i get it out, i will have an issue getting the new one in. Oh how i love working on these old bikes. One step forward two steps back.
     
    sybe, Jul 24, 2019
    #4
  5. chacal

    chacal Moderator Moderator Supporting Vendor Premium Member

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    Put the new one in a freezer overnight, it will shrink a tiny bit, and make installation easier.
     
    chacal, Jul 24, 2019
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  6. Chitwood

    Chitwood Well-Known Member

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    How's the weather by you? You could add to the freezer tip by parking the bike so that the sun beats on the final drive housing all day while the vent is in the freezer. Would hopefully go in much easier but you need to do it quickly
     
    Chitwood, Jul 24, 2019
    #6
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  7. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Pull the final drive. Drop it and the new breather at your local machine shop. Shouldn't cost more than $40 to have the work done, and you get to blame someone else if it goes wrong.
     
    k-moe, Jul 24, 2019
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  8. sybe

    sybe Active Member

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    thanks for all the tips. I'll try the freezer and spray it with an upside down air can. its supposed to be 80 on sat so I'll get up early to paint the pumpkin and let the hot sun dry the paint and "stretch" out the hole. :cool:
     
    sybe, Jul 24, 2019
    #8
  9. XJ550H

    XJ550H Well-Known Member Premium Member

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    a little silicon to help it slip in would be good
     
    XJ550H, Jul 25, 2019
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