Cup washer press

  1. Maker

    Maker nEw mEmBeR

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    I mentioned before about needing to make a couple of cup washers for a Blake water pump. Well we ordered some 4mm leather so I got cracking:
    cup washer press.jpg
    The body is 2" x 4" x 4" steel, bored out to 1 15/32", 7/16" deep. The brass plug is 1 5/32", approximately 8 mm less than the hole, to compensate for the thickness of the leather. There is a 10mm threaded hole in the bottom for the bolt to screw into.

    To use it, you cut out an over sized leather circle with a hole in the middle, soften it in water and tighten it between the plug and the hole. With it in the press, trim the excess leather and leave it a few days to harden. Then take it out and hopefully it will be a nice tight fit in the cylinder of the pump.
    That's the theory anyway, I'm yet to test it, fingers crossed.

    There's no reason to make it from thick steel, MDF would work just as well.

    I'll take some disassembled pictures tomorrow.
     
    Last edited by a moderator: May 20, 2015
  2. blenkie1

    blenkie1 Member

    Not the only one that uses both imperial and metric on the same job then. Can I have a 12mm bolt 2" long please?!
     
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  3. atomant48

    atomant48 Forum Supporter

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    I made a similar thing to press shallow cups into a piece of sheet steel. MDF for the female bit worked well as you say. Yours looks like much more fun to make though !
     
  4. Rig Pig

    Rig Pig Member

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    Chipmaster working well I see☺
     
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  5. Jim Davey

    Jim Davey R H Davey Welding Supplies Ltd

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    MDF doesn't like to get wet though, it expands and goes soft, horrible stuff really.
     
  6. Maker

    Maker nEw mEmBeR

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    Yes, working very well. Best £600 I've ever spent:D.
     
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  7. penfold

    penfold Ambassador plenipotentiary

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    Use a bit of plastic chopping board instead(other sources of dirt cheap polymer sheet are available).
     
  8. DAPPH

    DAPPH as dyslexik as I'm daft

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    Maker , I can't view your picture as I don't do Faceache etc. Any chance of putting the picture in to the thread please ?
     
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  9. mike os

    mike os just a little insane.....

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    no pic :mad:
     
  10. Maker

    Maker nEw mEmBeR

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    Sorry about that, I've been sending them to myself from my phone then copying and pasting them here.
    Is this showing?
    cup washer press.jpg
    If so then could a mod please put it in my first post?
    Here's the washer it made:
    cup washer.jpg
    I don't think it's deep enough but I'm not sure.
     
  11. mike os

    mike os just a little insane.....

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    what came off?, the ones I remember were quite a deep cup
     
  12. Paul.

    Paul. Moderator Staff Member

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    Done ;)
     
  13. Maker

    Maker nEw mEmBeR

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    It's from a Blake but the originals were long gone. I made the hole the same depth as the things that fit inside the washer but I didn't add 4mm for the thickness of the leather.
     
  14. mike os

    mike os just a little insane.....

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    try it... whats the worst that can happen?
     
  15. Maker

    Maker nEw mEmBeR

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    I've got to make another bolt, brass washer and a couple of great big end cap type things and then it can be tested. It's a big lump so once it's working I think he's going to sell it:(
     
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