Fujica GM670 shutter is behaving a little weird

J

jpbelentani

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Feb 12, 2020
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Hey all, I got a Fujica GM670 and the shutter is behaving a little weird. After pressing the button it takes a few seconds for the camera to actually fire. All the speeds seems to be working fine, it just takes a few seconds for it to work. I noticed that depending on the shutter speed if i advance the film very slowly it works fine most of the times.

The problem seems to be only related to the lens, I can take the lens off, manually load it using a pencil (as instructed by manual) and it still takes a few seconds for it to fire

Is this a common issue, any idea how to fix it? From what I read this shutter mechanism is fairly simple to work with.

Thanks in advance!
 
The lubricants in the lens are gummed up. Do you have the tools and experience to clean a lens? It can be a DIY project, but it's no walk in the park.
 
I've cleaned a Tokina and Helios before, so a have a little experience disassembling and assembling some lens, would it be much more complicated to work on the Fujica Lens? I was planning to do it myself, having some instructions or reference imagens would surely be helpful but i couldn't find any
 
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