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  1. #1
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    Presta threaded end pump frustrations

    I'm fine with pumping my presta valve tires with a floor pump with the switch that connects and disconnects from the valve.

    I bought a Lezene portable pump that screws onto the presta valve.

    What happens is I loosen the presta valve, then thread the portable pump hose onto it and pump. When I unthread the hose the whole valve core comes out with the pump hose?

    Is the solution to not thread the portable hose snuggly to the presta valve?

    Thanks
    Bill

  2. #2
    Ba ba ba bird bird bird
    Reputation: MattC555's Avatar
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    Mar 2011
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    I would tighten the valve core, and only thread the hose on as far as needed to fill with air. I have a Lezene floor pump with the same screw type fill valve, and had this happen once. I simply used two pairs of pliers, one to hold the valve base and one to tighten the core. I haven't had an issue since.

    Good luck!

  3. #3
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    Reputation: Gasp4Air's Avatar
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    I also have a Lezyne floor pump. I addition to the suggestions already made (esp tightening the core), try putting a very light coat of grease or lube of some sort on the valve threads and/or the inside of the hose head to ease removal.
    Use it, use it, use it while you still have it.

  4. #4
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    I have a Lezyne portable screw on pump. This hasn't happened to me. I agree with tightening the core.

  5. #5
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    Thanks!! Bill

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