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04-10-2016, 02:58 AM   #1
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MV Rewind Lever detached

Hi - I hope this is the right forum - please move if necessary.

I have recently picked up my old MV (after some 30 years of neglect) was rewinding a film out in the field when the Rewind Lever top became detached / unscrewed.

I think (hope) I retrieved all the parts (hopefully pictured below), but am not sure what order / way up they go back. Any help much appreciated.

Thanks,

Robin

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04-11-2016, 01:22 AM - 1 Like   #2
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You need an MV exploded parts diagram for the sequence to rebuild parts with. I have looked for one but my iPhone is not good.

But you seem to be (and may have been operating) without some bits eg three small screws.

Most repair people will post you any bits at parts $ plus one way postal or reassemble two way postal.

Alternatively buy a parts MV... but that won't help if you fix the parts camera, or if works ok out of packaging.
04-11-2016, 02:13 AM - 1 Like   #3
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I would guess, if the top row is row A then numbered left to right, and the bottom row is row B numbered left to right, the order of assembly is A1, B3, B2, B1, B4, A2. I don't think those 3 are screw holes but molding marks..? And you will have to align the prongs off the camera into holes in the bottom of A1.

Make sure you pull the rewind shaft up and open the back, and keep it open until you get it together right. If you push the shaft into the camera with the back closed you'll have to take off the top or bottom cover to get the back open again and the shaft out!

edit: now that I look at it more closely, if there's a piece of black plastic in the middle of B1, it's probably broken off of the black plastic around the rewind shaft on the camera, and your camera is toast.



(If that's the case I think the order is A1 B2 B1 B3 B4 A2...)

Last edited by Ranchu; 04-11-2016 at 02:40 AM.
04-11-2016, 05:10 AM - 1 Like   #4
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I know someone in the UK with an MV he's keeping for parts, he might sell you it or the bits if you want me to put you in contact?

04-11-2016, 06:27 AM - 1 Like   #5
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QuoteOriginally posted by Ranchu Quote
I would guess, if the top row is row A then numbered left to right, and the bottom row is row B numbered left to right, the order of assembly is A1, B3, B2, B1, B4, A2. I don't think those 3 are screw holes but molding marks..? And you will have to align the prongs off the camera into holes in the bottom of A1.

Make sure you pull the rewind shaft up and open the back, and keep it open until you get it together right. If you push the shaft into the camera with the back closed you'll have to take off the top or bottom cover to get the back open again and the shaft out!

edit: now that I look at it more closely, if there's a piece of black plastic in the middle of B1, it's probably broken off of the black plastic around the rewind shaft on the camera, and your camera is toast.



(If that's the case I think the order is A1 B2 B1 B3 B4 A2...)
Toast is bit extreme - at most you would need a part and might need to lift the top plate for access.
If you want to pay for service and postage.

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04-12-2016, 02:48 PM   #6
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QuoteOriginally posted by Xmas Quote
But you seem to be (and may have been operating) without some bits eg three small screws.
.
Thanks for this - I can see why it looks like that (3 holes in inner dial), but I can't find anything on the underside for them to screw into - maybe that was always missing too.

I will have another hunt for a MV parts catalogue, but I haven't found one so far.

---------- Post added 04-12-16 at 02:57 PM ----------

Thanks Ranchu

QuoteOriginally posted by Ranchu Quote
edit: now that I look at it more closely, if there's a piece of black plastic in the middle of B1, it's probably broken off of the black plastic around the rewind shaft on the camera, and your camera is toast.
There is no evidence of a break - jagged edges, etc, so hopefully this is not the case.

QuoteQuote:
(If that's the case I think the order is A1 B2 B1 B3 B4 A2...)
That seems like a sensible order, so will try it.

---------- Post added 04-12-16 at 02:59 PM ----------

QuoteOriginally posted by Johnny Rod Quote
I know someone in the UK with an MV he's keeping for parts, he might sell you it or the bits if you want me to put you in contact?

Many thanks Johnny - depending on my success above, I hay come back to you on that.

---------- Post added 04-12-16 at 03:01 PM ----------

QuoteOriginally posted by Xmas Quote
Toast is bit extreme - at most you would need a part and might need to lift the top plate for access.
If you want to pay for service and postage.

Pentax Camera Repair Specialists - Repair Prices - Harrow Technical

No vesting interest...
Thanks again Xmas - really helpful
04-16-2016, 03:31 AM   #7
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What you have there looks more like the winder from an MV-1 ... or at least a very late MV, as the winder on my MV had a screw top a bit like an "elongated D", which the actual lever was attached to via a special kind of washer. I bought an entire assembly for my older MV as I broke it @ a month ago. one the top was screwed off, it all just pushed straight in from inside. Although it sits @ 2 mm too high, it is way more robust than my original. It also cost 6 quid, which meant I didn't throw an otherwise perfectly usable camera away ;-)
04-16-2016, 01:20 PM   #8
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QuoteOriginally posted by ApeArt Quote
What you have there looks more like the winder from an MV-1 ... or at least a very late MV, as the winder on my MV had a screw top a bit like an "elongated D", which the actual lever was attached to via a special kind of washer. I bought an entire assembly for my older MV as I broke it @ a month ago. one the top was screwed off, it all just pushed straight in from inside. Although it sits @ 2 mm too high, it is way more robust than my original. It also cost 6 quid, which meant I didn't throw an otherwise perfectly usable camera away ;-)
Definitely MV - purchased in 1979 (not sure if that makes it late or not).

Glad yours is usable again - they are good cameras (even if you can't see / select shutter speed).

04-16-2016, 01:42 PM   #9
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Mine is now fixed again. The order that felt best was indeed A1 B2 B1 B3 B4 A2.

I couldn't find an MV (or MV1) service manual, but found a couple of ME & ME Super ones (which may already be well known, but just in case):

http://www.robertstech.com/manuals.htm

Pentax Manuals

(although in this case the detail isn't the same, but it did help)
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04-16-2016, 01:54 PM - 1 Like   #10
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Your rewind lever. It needs more parts. This design is way too simple. It needs a bunch of washers and springs and nameless bits and bobs. How is one supposed to feel technologically superior with a handle made up of only six bits plus all the bits to which they are attached?
04-17-2016, 12:28 AM - 1 Like   #11
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QuoteOriginally posted by Robin CB Quote
Definitely MV - purchased in 1979 (not sure if that makes it late or not).

Glad yours is usable again - they are good cameras (even if you can't see / select shutter speed).
Glad you sorted it out Robin. I love my MV - perhaps because it's the first film camera I bought. Thanks for posting a link to those manuals - I'll be stripping my ME in the next few weeks, and that manual will be invaluable.

David
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