Canon Canonet QL19 Shutter and aperture disassembling

[insanekamil92]

Hello to all members in RFf, im having trouble in accessing the blade and shutter compartment on canon canonet QL19. so i want to ask how to open the aperture and shutter curtain from the front of the lens element since i dont have any idea which screw to be loosen off because i tried several screws and it wont lifts off. tried to replace weak aperture springs but it didnt work as i expected because the wire didnt strong enough to pullback the aperture into full open position, so before i tried to re assemble it back, i want to try to open it first and see if i can clean the old rusty blades.

i managed to take pictures of the level that im currently off, so maybe u can help me with my problem since i dont understand the sequence from canonet QL17 GIII manuals (oh im forget to mention, this is canonet ql19 but i assume that this wont be different with QL17 GIII)

 

[02Pilot]

The problem's not the spring, it's the condition of the blades. Get those cleaned up and I'm sure the spring tension will be more than sufficient.

Sadly, I can't help you with getting the shutter assembly apart - I had one of those camera once, but I never had to dig into the shutter. However, if it were me, I'd try this first: get the aperture as closed as possible (don't force anything) and take a cotton swab (or better yet, a small piece of lint-free paper or cloth) soaked in Ronsonol, and use it to clean the blades in place. Then, take another swab and use it to lightly coat the blades with powdered graphite. Blow out the excess and gently work the blades open and closed. Repeat until the blades move freely. It's not the best way to do the job, but it should get them moving unless something's actually broken.

 

[insanekamil92]

The problem's not the spring, it's the condition of the blades. Get those cleaned up and I'm sure the spring tension will be more than sufficient.

Sadly, I can't help you with getting the shutter assembly apart - I had one of those camera once, but I never had to dig into the shutter. However, if it were me, I'd try this first: get the aperture as closed as possible (don't force anything) and take a cotton swab (or better yet, a small piece of lint-free paper or cloth) soaked in Ronsonol, and use it to clean the blades in place. Then, take another swab and use it to lightly coat the blades with powdered graphite. Blow out the excess and gently work the blades open and closed. Repeat until the blades move freely. It's not the best way to do the job, but it should get them moving unless something's actually broken.

tried several ronsonol / naptha cleaning on the shutter and aperture blades but some rust mark on the blades still on there, i dont know if the shutter and blade mechanism should be opened from backwards (from the film room) or it can be done from the front.

 

[Ranchu]

If there's rust on the blades, donate it to a thrift store. Life's too short to spend your time on it, the camera is a rickety piece of junk anyway. There is an exploded diagram of the QL17 in zipped TIFs here.. http://www.kyphoto.com/classics/repairmanuals.html

 

[insanekamil92]

If there's rust on the blades, donate it to a thrift store. Life's too short to spend your time on it, the camera is a rickety piece of junk anyway. There is an exploded diagram of the QL17 in zipped TIFs here.. http://www.kyphoto.com/classics/repairmanuals.html

okay then, so this camera is simply cannot restorable because its not worth for the time ive spent, i just probably reassembling them all and put it on the shelves for my collection then. the working one QL17GIII costs about $40 - 90 here in Indonesia.
any idea how to do lens conversion?

 

[Fixcinater]

There are 4 screws that hold the main lens assembly to the chassis of the camera.

Remove those 4 and you'll have the lens out of the camera and can start pulling off the rest of the parts to adapt it.

 

[insanekamil92]

There are 4 screws that hold the main lens assembly to the chassis of the camera.

Remove those 4 and you'll have the lens out of the camera and can start pulling off the rest of the parts to adapt it.

can you point where are 4 the four screws because i have unscrew it before and the lens still stuck on something