dave_gardner1

I added some oil to the speed regulator (labeled "Turbine Oil") to see if that would increase the speed. I can always remove it with the Naphtha if needed. Now I'm measuring somewhat faster speeds, although not quite fast enough: 1s = 1.35s 1/2s = 0.7s 1/5s = 0.289s So, do I need a lighter oil? (this stuff seems light but not as thin as water) Or, is there a way I can adjust the speed that the speed regulator runs at? I'm still working on a way to more accurately measure the fast speeds...

I should have been more clear, I did replace the speed cam to test the speeds, I just currently have it off. Also I did strip the shutter down completely and removed/cleaned the individual blades. I can guarantee there is no oil/grease/residue on the blades. The discoloring appears to be a little discoloring or corrosion to the finish of the metal. I'll see if I can rig up some sort of optical speed tester...

p.s. you mention "the overhaul"...this site seems to be completely redone since the last time I posted on here...what's with that? All of the line breaks in my posts seem to not show up so my message looks like one giant run-on paragraph. :( Did they get rid of the archive of posts on this forum? There was a wealth of really great older information there...

What I mean by the microphone is... when the shutter is triggered on a longer speed setting there is a loud click as the blades open, then a quieter buzzing noise of the speed regulator, then another loud click as the blades close. So I just recorded this sound on my computer and used some audio recording software to see how long the time was between the two loud clicks. I can try the oil idea, I can always clean it off again with the naphtha if needed. When you say the "pallet end" which part is that? Is it the black u-shaped piece that "wiggles" on the gear when the speed regulator runs? (I uploaded the image again with an arrow by the part I'm talking about). And by changing the position, are you talking about moving the whole speed regulator, or moving this part within the speed regulator. This is definitely the part where I have questions regarding how to change the speed. http://i.imgur.com/F38Iornh.jpg

Hello, I'm working on trying to resurrect an old Yashica-mat TLR camera. Everything on the camera seems to be in pretty good shape, except that the shutter blades were gunked up with old oil. So, I ran the shutter through my ultrasonic cleaner with naphtha, then followed the instructions below to disassemble the shutter and make sure everything is clean inside. http://ratfactor.com/yashica-d-tlr-copal-mxv-shutter http://pheugo.com/cameras/index.php?page=copalmxv Once it was back together I ultrasoniced it 1 more time to make sure everything was clean and I didn't contaminate the blades, then let the naphtha dry overnight. It's clean and shiny now! The shutter blades open and close quickly too. The only issue is that the speeds are off. Using the microphone on my computer I timed the shutter speeds. The fastest speed I can measure is 1/50 of a second. All the speeds do seem VERY repeatable, just too slow. The four slowest speeds are on the slow range of the speed regulator, by the way, and then 1/25 and 1/50 are on the high-speed setting, so both modes do both seem off. (low speed) 1s setting takes 1.92s 1/2s setting is 0.967s 1/5s setting (0.2s) is 0.366s 1/10s setting (0.1s) is 0.135s (high speed) 1/25s (0.04s) is 0.128s 1/50s (0.02s) is 0.041s So, what can I do here? Is there a way to adjust the speed of the speed regulator to fix the speeds? Unfortunately I'd need to adjust both the high and low speed modes. Or do I just need some sort of lubricant on the speed regulator it for it to run faster? Right now everything is dry and free of solvent/grease (what you see on the blades appears to be some issue with the plating on the metal). I've reassembled the shutter back to where I'm ready to reattach the speed cam. Thanks for your help!! Dave http://i.imgur.com/pr36XPzh.jpg

<p>Reviving my old thread as I tried to bring this camera out of retirement today and ran into the same issue. :(<br> So to continue the conversation from 5 years ago, does the mirror bumper photo look right? And, does anybody know how to adjust the focusing screen/mirror position if the lens to film focus is correct (i.e. the hard stop at infinity focuses correctly on the film, but not on the view screen)?</p> <p>Thanks!</p>