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Thread: HW99/50 piston info

  1. #1
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    HW99/50 piston info

    Hello all,
    Does anyone have the dimensions of a HW99/50 piston please?
    I need the overall length including latch rod and piston body length, including seal.
    Cheers chaps, Craig
    Put on heading 270, assume attack formation

  2. #2
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    Quote Originally Posted by Craig-P View Post
    Hello all,
    Does anyone have the dimensions of a HW99/50 piston please?
    I need the overall length including latch rod and piston body length, including seal.
    Cheers chaps, Craig
    Sorry Craigy, don't have one in bits and didn't take any measurements when I last did.

    What you up to, matey?
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- May 4/5, 2024.........BOING!!

  3. #3
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    Quote Originally Posted by TonyL View Post
    Sorry Craigy, don't have one in bits and didn't take any measurements when I last did.

    What you up to, matey?
    I’ll show you at the bash (if I can get measurements)

    Come on lads, someone’s 99 must need a de-gaulling...just run a tape over the piston for me whilst you’re sorting it
    Put on heading 270, assume attack formation

  4. #4
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    Quote Originally Posted by Craig-P View Post
    I’ll show you at the bash (if I can get measurements)
    Oky dokes, matey. Very intrigued.
    THE BOINGER BASH AT QUIGLEY HOLLOW. MAKING GREAT MEMORIES SINCE 15th JUNE, 2013.
    NEXT EVENT :- May 4/5, 2024.........BOING!!

  5. #5
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    Quote Originally Posted by TonyL View Post
    Oky dokes, matey. Very intrigued.
    You’ll like it.
    If I get measurements.
    And if I get time to do it.
    If I can keep my eyes open long enough to finish it...
    Put on heading 270, assume attack formation

  6. #6
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    Quote Originally Posted by Craig-P View Post
    Hello all,
    Does anyone have the dimensions of a HW99/50 piston please?
    I need the overall length including latch rod and piston body length, including seal.
    Cheers chaps, Craig
    I have an old school 50 piston on the bench Craig, but I think this could only give you overall length as the cocking slot and body length would be different on the later 50.



    All the best Mick

  7. #7
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    Quote Originally Posted by T 20 View Post
    I have an old school 50 piston on the bench Craig, but I think this could only give you overall length as the cocking slot and body length would be different on the later 50.



    All the best Mick
    Any info would be at least a start and greatly appreciated, Mick - thanks mate.
    Put on heading 270, assume attack formation

  8. #8
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    I have a bare 99 piston (no seal). Overall length 152mm - piston body 119mm. Hope that helps a little.
    Keen but clueless..

  9. #9
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    Quote Originally Posted by sherlock1963 View Post
    I have a bare 99 piston (no seal). Overall length 152mm - piston body 119mm. Hope that helps a little.
    That’s absolutely perfect. Thank you very much.
    Cheers, Craig.
    Put on heading 270, assume attack formation

  10. #10
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    Total piston length from top of seal until end of rod: 155mm
    from top of seal until skirt end: 123,5
    inside depth from skirt end: 103,0

    You may check my gallery of fettling a HW50S last year.
    Lot of pictures and measures.
    http://abload.de/gallery.php?key=jc3SPstg

  11. #11
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    Quote Originally Posted by pelletcaster View Post
    Total piston length from top of seal until end of rod: 155mm
    from top of seal until skirt end: 123,5
    inside depth from skirt end: 103,0

    You may check my gallery of fettling a HW50S last year.
    Lot of pictures and measures.
    http://abload.de/gallery.php?key=jc3SPstg
    Perfect. Thank you very much indeed.

    Thanks all, Craig
    Put on heading 270, assume attack formation

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