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  1. #1
    Laurent's Avatar
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    Help needed with my Yashica mat 124

    Hello all,

    my Yashica mat 124 has become a bit "picky" : it will trigger fine for a series of images, then will refuse any more triggering until I unscrew the rear lens and "tick" the shutter blades...

    Should I lubricate it a bit (it's been CLA'd recently, so I'm not sure it's the issue) ?

    Any help would be appreciated.
    Laurent

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    Only dull people are brilliant at breakfast (Oscar Wilde)

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  2. #2
    Paul Sorensen's Avatar
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    I guess I would consult with whoever did the CLA, because if it was done that recently, I do not think it should be doing this.

  3. #3

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    Sounds like the shutter needs another CLA. Depending on how it was cleaned, there may still be some old gunk in there. Was the CLA done by a pro shop or a DIYer?
    Anyone can make a Digital print, but only a photographer can make a photograph.

  4. #4

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    Shutter blades SHOULD NOT be lubricated, that's why they stick. They need to be absolutely dry.
    This also includes the blade housing. Any old lube left in place when serviced will keep the blades from traveling properly.
    Heavily sedated for your protection.

  5. #5
    Laurent's Avatar
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    Thanks for your answers.

    I'll contact the tech who did the CLA, but I'd assume that, since it worked OK for 8 months (I did about 15 films in this period, plus many tests without film), it may not be left lubricant.
    Laurent

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    My APUG Blog

  6. #6
    Laurent's Avatar
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    A quick update on this. I finally decided to bite the bullet and remove the rear lens element (I bought a 124G I plan to CLA so I first had a look at it) and tried to rub the blades with alcohol... And now the shutter works perfectly ! :-D
    Last edited by Laurent; 09-02-2009 at 02:31 PM. Click to view previous post history. Reason: fixed a typo
    Laurent

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    Only dull people are brilliant at breakfast (Oscar Wilde)

    My APUG Blog

  7. #7

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    Good call. The blades might have still had some oil on em.
    Anyone can make a Digital print, but only a photographer can make a photograph.

  8. #8

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    The problem sounds like oil on the shutter blades. Blades should be bone dry to operate properly. Whatever you do, DO NOT OIL IT. John

  9. #9

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    Zippo fluid (cig lighter fluid) is safer then alcohol there is less water in Zippo fluid.

  10. #10
    Rick A's Avatar
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    Zippo fluid leaves an oily residue- its a petroleum distillate. Try xylene or lacquer thinner.
    Rick

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