Noblex 135U light leaks

[azryal]

Hi,
I'm getting some light leaks around the sprocket holes from my Noblex 135U, any ideas?
Cheers

 

[azryal]

OK, so I remembered to bring the scans home from work...

http://www.rangefinderforum.com/photopost/showfull.php?photo=84666
http://www.rangefinderforum.com/photopost/showfull.php?photo=84667

I'm not too fussed on the scans, as it was expired kodak gold 200, but the leaks are coming trough the sprocket holes. The back was shut tight. I think these exposures were around 1sec (which is about 3mins with a swing lens). Would the long exposure have anything to do with it?