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Thread: Removing 'O' rings?

  1. #1
    Join Date
    Dec 2012
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    Removing 'O' rings?

    Hi all, hope this is the right place. I am rebuilding a regulator, have all the 'O' rings and bits no problem but there are 'O' rings that sit in grooves in very highly finished brass parts, the question is how can I remove the rings without causing Any damage to the brass.
    I have some picks but they look, when under a glass, like blunt screwdrivers.
    Thank you.
    Cheers.
    Geoff.

  2. #2
    Join Date
    Dec 2016
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    leeds
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    cocktail sticks -bamboo skewers o r some times you can squeeze the sides so the top lifts to roll it out but that depends on tightness in groove and hardness

  3. #3
    Join Date
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    Quote Originally Posted by --ped-- View Post
    cocktail sticks -bamboo skewers o r some times you can squeeze the sides so the top lifts to roll it out but that depends on tightness in groove and hardness
    They'll work for looose and thin O rings but you need something more substantial for larger ones or those on things such as regs, then you'll need O ring removal tools. If you use tools then be careful of the surrounding area, especially brass.
    Approved Tinbum Fitter and Bumslide User!

  4. #4
    Join Date
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    Removing 'O' rings?

    try those fine point plastic toothpicks, the ones with a y shape at the other end with dental floss on, failing that use a fine sewing needle point to prick into the o-ring(but not touch the metal)

  5. #5
    Join Date
    Oct 2012
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    preston
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    O rings

    Squeeze and push forward, and wooden tooth picks.
    mk2 rapid.22

  6. #6
    Join Date
    Feb 2015
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    Rayleigh
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    Quote Originally Posted by keithy View Post
    Squeeze and push forward, and wooden tooth picks.
    That won't work on a Rapid reg as the O rings are too thick and tight, that includes putting them back on again.
    Approved Tinbum Fitter and Bumslide User!

  7. #7
    Murphy is offline Cooee! Chase me you naughty boys!
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    Give them a blast with the blow torch!

    That wont help putting them back on though.
    Master Debater

  8. #8
    Join Date
    Mar 2011
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    loughborough
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    O ring pick

    A barbless fishing hook clamped in a pin vice and cocktail stick should work .

  9. #9
    Join Date
    Dec 2012
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    Many thanks all, there is a fishing tackle shop not far away, the rings are deep in the grooves with only a tiny amount of protrusion and I cant squeeze them. Just being careful could be a very expensive slip!
    Cheers.
    Geoff.

  10. #10
    Join Date
    Sep 2010
    Location
    Exeter
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    I use a couple of large sea fishing hooks (6/0) both have been straightened a bit one has the point 2mm bent 90* to stick in to the ring, the other has been filed blunt & flat in case the ring is going to be reused.

    If really tight a dab of grease wiped on the metal lip can help them slip out same as a wipe on the new O ring helps it seat.

    If you have access using tweezers or needle nose pliers you can often squeeze the O ring so that a section pulls away enough to get a tool behind it.

  11. #11
    Join Date
    Dec 2016
    Location
    leeds
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    305
    as you have replacements cut it with a razor and just replace
    obviously you need to have a steady hand and cut it like you were making a scarf joint

  12. #12
    Join Date
    Oct 2006
    Location
    Oxfordshire
    Posts
    438
    Stick a pin in 'em, lift 'em and use a toothpick in the gap

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