Hi Greg and Hi ZeissFan
Upon your tech info I am trying on my own responsibility a kind of "war field bondage".
My main problem is that I don't want by any means to disassemble the lens compound beyond the necessary to put the glass parts out. This is definitive as I have jammed every other camera in which I went further.
During the last days, after disassembling the lens, I have poured in alcohol and it helped partially only for a few hours. I have poured more and more, with the same result.
But now, after hearing that these mechanisms work on the basis of oil, I have poured some oil and the shutter is still working for a longer time already.
So I guess my problem from now will be to clear as much oil as possible, by leaving the camera in different positions every time, cleaning the flowing out oil, and repeat the operation during long weeks.
If this "kitchinette" solution works..... hmmm a lot of folks will be happy.
Cheers,
Ruben
PS
As for the how do I treat the sellers, kindly be wise enough to understand that one attitude here posted doesn't embrace the whole of my history with the many sellers I have dealt with, even those from which I have got bad gear - perhaps in the same spirit that I have been wise enough to tell myself I don't know everything so let's hear other technical opinions, and changed here my most basic assumptions.
Can we stop this side issue now ?
Cheers,
Ruben
PS 2
Hi Valdemar,
I notice you are reading this thread now - how is going with your beatifull kid
NOOOOOOOOOOOOOOOOOOOOOOOOO!!!!!!!!!!!!!!!!
Really, seriously, horribly bad idea Ruben!!!
Shutter blades have to be dry to work properly. Oil makes them stick together. You've just made the problem 1000% worse. Also,
pouring anything at all into a shutter is a bad idea, but alcohol, unless it is denatured alcohol bought at a hardware store, is one of the worst. Drugstore or grocery store alcohol is sold diluted. It is, at best, 10% water (some rubbing alcohol is 30% water with gums and balsams in it). This means you have, probably, a water damaged camera now. You use naptha or white gas to clean shutters. It does a far better job of dissolving oils and greases, it won't damage anything, and it evaporates cleanly.
There is also a great deal more to flushing out a shutter, even if you do only the most basic amateur job*, than pouring fluid in and then pouring it out. To do it that way, you'd have to do it about 50 times. What you are pouring out has crud dissolved in it. When whatever is left in there evaporates, the crud just redeposits. That's why your shutter was sticking again when the alcohol evaporated. Think of washing a dish. you don't just soap it up and put it away -- you have to rinse it and dry it too.
*The simple "spray and pray" method used by most amateurs involves removing the lens elements and then cleaning the shutter blades with naptha. You swab the blades with a sopping wet cotton swab and then mop up the fluid (and the dissolved crud) using the dry end of the swab. Then you work the shutter a few times and repeat. Do this about 50 times or so. yes, it is tedious and it takes a while (and there are better ways of doing it), but it
does work. Do not just pour anything, including naptha, into the shutter. yeah, it will dissolve some of the crud, but then it will redistribute it elsewhere, because it is sloshing all around in there and you don't know where it is going.