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Author Topic: Yashica-Mat EM shutter access  (Read 1661 times)
taulen
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« on: January 14, 2010, 01:58:34 PM »

Edit2:
"new problem" look further down =)
Edit:
Hahaha,
nevermind, got it 2 minutes after posting this. =)

Hey,

hate to be new guy, and start asking for help. But anybody familiar with this camera ? Just recieved it in the mail today, fleabay purchase.
The shutter is stuck, or not stuck, but doesnt work at all. Think someone fucked up, because the handle for flash-sync were not connected to anything, so I'm afraid they have been struggling with the selftimer when the flash-handle was in the M position or something.
But to my question. See the attached image, and could someone please tell me how to access the shutter ? what do I have to do ? Read on a website that the "nut" in the middle of the taking lens would have to be removed, if this is true, any suggestion for how to do that ?


Best regards from the new guy.

Jonny Taulen
« Last Edit: January 15, 2010, 10:26:14 AM by taulen » Logged

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"That is called grain. It is supposed to be there." -Flotsam
taulen
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« Reply #1 on: January 14, 2010, 02:39:28 PM »

Hey, do anyone see anything wrong on this picture ? Or have a picture of a working shutter I can look at ? Or if you want a diffrent angle or larger picture, please let know.
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taulen
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« Reply #2 on: January 15, 2010, 06:00:55 AM »

If you could please take a look at this video, and shouldnt there be more things to happen when I cock the shutter ? I'm really starting to not understand a thing. Would really love if some with a little bit of understanding in these shutters would give me some clues.
http://www.youtube.com/watch?v=Ko2lRl8-7Qw

And on the next video, you can see that the selftimer appears to work, at least it's not jammed.
http://www.youtube.com/watch?v=U_Eig4skYv4
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"That is called grain. It is supposed to be there." -Flotsam
Dean Williams
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« Reply #3 on: January 17, 2010, 11:55:31 PM »

Man, you need to clean up your language.
Welcome to the forum.

The shutter is already cocked in all your pictures and in the video.  It has started to fire, and the blades have moved about 1/64" from their rest position, but as you have figured out, they are stuck. 
I can see some gunk on them, but that may not be keeping them from firing.




The thing the red arrow is pointing to is the main spring cocking cam, and when the cocking lever next to it swings through its arc, it pushes that cam via the pin that is sticking out of it, cocking the shutter.  When the shutter fires, that thing will go through the are described by the green arrow.

Try this;  hold down the shutter release and with your thumb nail, push on that cam in the direction of the green arrow.  Don't push too hard. 
If it won't go, put a single drop of lighter fluid or Coleman camp fuel in the space between the chrome curved cocking lever, and the gray colored cam.  Let it set a about 10 seconds, and try pushing it again while holding down the shutter release. 

If it still won't go, the shutter blades are probably glued together by a film of oil.  It needs to be cleaned properly, but if you don't want to spend money on it, you can try putting a drop of lighter fluid on the shutter blades, another drop in the first location, and try it again.

If this works, it still needs to be cleaned.  If it doesn't work, it still needs to be cleaned.

Dean
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Dean W
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Oh, and it's been SIX almost SEVEN years!  Smiley
Larry;  Try to keep up!
taulen
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« Reply #4 on: January 30, 2010, 10:42:00 AM »

Thank you for the information, and yes it was just the shutter blades that is/were stuck. They started to  move after som fluid, but as soon as it dried it went stuck again. So will have to send the shutter in for a CLA some place.

And sorry for my english, isnt my first language, as I'm from Norway, hope you all can get through it.
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Dean Williams
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« Reply #5 on: February 01, 2010, 04:05:19 PM »

Your English is fine...
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Dean W
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Oh, and it's been SIX almost SEVEN years!  Smiley
Larry;  Try to keep up!
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