Pulled one spring from M7

[minsungbr]

Hi guys
I was using Kentmere 400 and when I was rewinding the film somehow the it ripped out
So decided pull it by myself on changing bag
Tried with the finger and no success.
Tried with tweezers. Hooked in something and pull it out.
It was spring

like pictured

coming out form the take up spool area

For now, all functions works. I can cock the shuter and fire it, open the bottom cover and film count reset, film advance and rewind
Any one have idea what this piece is for?

 

[raydm6]

I believe its the film-tension spring.

https://www.filmshooterscollective....voigltander-bessa-r4m-film-camera-review-2-16

 

[Out to Lunch]

Nasty! I hope you'll be able to find a repair person willing to fix your M7, or recommend the appropriate DIY action. When I was in Canada in 2018, no repairer would touch the M7. Cheers, OtL

 

[minsungbr]

Leica store near by is closed due to pandemic
I need start calling.
Thanks

 

[raydm6]

See Page 18 & 55 of the Manual:

https://learncamerarepair.com/downloads/pdf/leica-m7-service.pdf

Looks the spring may have been deformed?

 

[arseniii]

1. LOL

2. You should have read the manual, it does explain how to retrieve the film if it's separated from the canister.
3. You might be able to still use it without the spring. This sprint controls how even/tense you film would be on the takeup spool. Test it.

 

[Huss]

Doesn't the whole film take up tulip thing come out? In case the film is separated from the cannister?

 

[arseniii]

Doesn't the whole film take up tulip thing come out? In case the film is separated from the cannister?

No it's not. You have to do several rewinds of the crank with the back door open to loosen up the film on the spool, then GENTLY remove it with your hands (no tools)

 

[Beemermark]

DAG recently did a CLA on mine for $180. Send it to him. It’s an expensive camera get it fixe d right.

 

[Huss]

No it's not. You have to do several rewinds of the crank with the back door open to loosen up the film on the spool, then GENTLY remove it with your hands (no tools)

Yep, you're right, just checked mine. The M5 (and some other models perhaps?) has the removable spool.

This is what it looks like inside the M7 with the spring in place. The OP must have really ripped that thing out!

 

[farlymac]

To me it appears that the spring fits under the brass washer at the top of the spool. You may be able to remove the spool and reinstall the spring. I say "may" because I don't know your level of expertise, and some are quite squeamish about working on their own cameras. You know, "Is this screw right or left handed?". Guess wrong and a costly repair is in order.


PF

 

[Huss]

To me it appears that the spring fits under the brass washer at the top of the spool. You may be able to remove the spool and reinstall the spring. I say "may" because I don't know your level of expertise, and some are quite squeamish about working on their own cameras. You know, "Is this screw right or left handed?". Guess wrong and a costly repair is in order.


PF

Looking at the exploded parts diagram provided in the owner's manual above, it seems that removing that screw to access the washer that the base of the spring goes under may loosen up a whole bunch of other stuff too.

BUt.. it seems that spring is now damaged if you look at the pic, and a new one most prob is needed. It was forcibly yanked from its seated position distorting it.

 

[farlymac]

Looking at the exploded parts diagram provided in the owner's manual above, it seems that removing that screw to access the washer that the base of the spring goes under may loosen up a whole bunch of other stuff too.

BUT.. it seems that spring is now damaged if you look at the pic, and a new one most prob is needed. It was forcibly yanked from its seated position distorting it.

There's always something, isn't there. Still, it looks to me that all those parts will come out with the spool, and can be reinstalled in one sub-assembly. The spring is recoverable, just needs to be bent back into shape a little.

PF

 

[minsungbr]

Guys. Thank you for all replies
Because my spring already deformed contacted Leica NJ.

Seem to be an easy fix.
They are operating in 50% of the capacity

 

[santino]

IMO the spring is recoverable. Just don‘t throw it away. Sell it or store it.. who knows.

 

[leicapixie]

Look at springs shape, if not too bent try bending to be a column.
Mine came out in M6TTL and I simply eased it back!
Later the "Frame" selector froze and Gerry (now retired) Repaired that and checked spring. I had done it right.. So try easing back.
It's needed for film tension..