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Mareklew
Tinkerer
Username: Mareklew
Post Number: 6
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Tuesday, March 23, 2010 - 05:18 pm: | 
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As described in <https://kyp.hauslendale.com/classics/forum/messages/2/18334.html?1269368692> I'm trying to CLA an old Yashica. I have managed to take the shutter completely apart, clean the diaphragm and shutter leaves and reassemble the diaphragm. Unfortunately the shutter went "boing" on me and now I have six blades and three shims and a puzzle, how do they go together.
An extensive search lead me to conclusion, that this is identical setup to that in a Canonet GIII 17 (explosion drawing in Repair Manuals section), that drawing specifies arrangement of blades, but NOT where the three spacers should go (even though they're mentioned on the diagram).
Any hints?
I have an idea, but I don't want to jump on it unless nobody knows for sure...
thanks,
Marek |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 7
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, March 24, 2010 - 01:59 am: |
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Well, I figured it out, tell me if I'm right:
The trick is not where the shims have to be, but where they CAN'T. They can't be under the first/last blade combo (obvious, there are two blades already) and can't sit under the 5th blade, because the 1st one would hit it. So shims sit under 2nd, 3rd and 4th blade, in order of assembly.
Marek |
Harryrag
Tinkerer
Username: Harryrag
Post Number: 211
Registered: 05-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Wednesday, March 24, 2010 - 11:07 am: |
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Your findings make sense and correspond with my experience on the matter, I never reassembled the Y electro's shutter though, because when that "boing" thing happened to me, one of the shims never turned up again. But there is a very similar lineup of blades and shims in the Konica S2's shutter, and all of the ones I had apart are fully operational. |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 16
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 26, 2010 - 05:53 am: |
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Thanks, Harry.
BTW: you may consider reassembling that Y Electro  It will work w/o one shim like charm, these shims reduce risk of light leak, but, as one is missing anyway (fourth blade) it can't be so critical.
Marek
PS: my shutter also works now... |
Harryrag
Tinkerer
Username: Harryrag
Post Number: 214
Registered: 05-2008
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 26, 2010 - 11:06 am: |
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Well, actually ... no. It was a very early electro, this gave me the idea to use the front lens group to reconfigure a Y minister 700's optics, other parts of it were used to repair a second electro, a GS/GTN hybrid, although some say a swapping of parts, especially of the light measuring arrangement, is often not possible. |
Mareklew
Tinkerer
Username: Mareklew
Post Number: 17
Registered: 03-2010
Rating: N/A
Votes: 0 (Vote!) | | Posted on Friday, March 26, 2010 - 11:37 am: |
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Well, in this light, it may indeed be a bit hard to reassemble it :P
Marek |
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