Compur Rapid shutter help?

Discussion in 'Camera Building, Repairs & Modification' started by athanasius80, Oct 28, 2006.

  1. athanasius80

    athanasius80 Member

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    I just rejuvenated a Compur Rapid on a 6x9 folder of mine. It was bound up by a dry self timer train. Now I find that B and T do not work, and I cannot even get the rimset to go to either setting. Does anyone have any hints or suggestions?
    Thanks!
     
  2. Ole

    Ole Moderator Staff Member Moderator

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  3. Greg_E

    Greg_E Member

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    Sounds like the cover may not be properly installed. Either that or maybe the timer assembly isn't installed correctly. I had the same thing happen on a Syncro Compur and found that the main timer assembly was out of place, and that the top timer plate wasn't installed correctly.
     
  4. elekm

    elekm Member

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    With some of the older Compurs, you don't tension the shutter for B and T. In fact, I believe you cannot tension the shutter on B and T with some of the older Compurs.

    Otherwise, I agree with Greg. The outer dial with the speeds probably isn't seated correctly. That's where I would start. Before you replace the other parts, turn the dial from T to the top speed (shutter untensioned) and see that it spins freely -- not easily, but freely.

    What I'll sometimes do when I have trouble replacing the speed dial is to half tension and release the shutter a couple of times at around 150 or so. Then I'll change speeds and try again.