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Author
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Topic: Bolex Super 8 18-5 Help Needed
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Kevin Chartrand
Junior
Posts: 3
From: Hudson, NH, USA
Registered: May 2008
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posted June 09, 2008 10:48 AM
My father has a Bolex Super 8 that hasn't been touched in over 30 years. I took the projecter and a couple cases of old family movies that I want to view and then eventually do something with (transfer to DVD, etc.).
I set up the machine, and I am having a problem with the threading. The bulb works, everything else seems to work, but when I turn the switch to M (foward motion, lamp off), the film doesn't thread. I have the instructions and tried the auto threading as well, when I pressed the "upper loop former switch", the film isn't feeding at all. I've manually fed it to the rear spool and turned it on and nothing. I've noticed that if I turn it on with the bulb, it will start to burn the film so I know enough not to try that again.
I wonder if I'm doing something basic incorrectly, or if I need to bring this someplace for repairs, or if it's a minor repair, maybe I can handle it myself.
Thanks.
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Paul Adsett
Film God
Posts: 5003
From: USA
Registered: Jun 2003
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posted June 09, 2008 03:11 PM
Kevin, perishing of the original rubber belts on the Bolex 18-5 is a very common occurrence. Fortunately the solution is really simple. You need to get some black Butyl B612-70 or Ethylene-Propylene rubber o-rings from a distributor of Parker O-RINGS here in the USA. The size you need has a wall thickness of about 0.062 ins and an outside diameter of about 1.900 ins. You will need one ring for each of the three drive pulleys (total of 3 belts). I replaced mine 20 years ago and they are still as good as new. Butyl B612 is a superb rubber material, used extensively in aerospace applications, and they will probably last forever on your Bolex. Try ACE HARDWARE stores- they may have something close. They are easy to install: First load up all thre o-rings onto the big pulley. Then, starting at the right most big pulley, stretch each o-ring into the corresponding small pulley groove on the motor shaft. A little bit fiddly, but easy to do.
While you have the back cover off, slap a little grease on the brass worm gear and the other plastic gears, and your projector will run like the Swiss watch that it is for another 50 years. 18-5's are one of the best 8mm projectors ever made. They are very kind to film and almost silent in operation. One of their big virtues is the rear sprung pressure pad in the gate, which results in razor sharp projection across the full picture area.
[ June 09, 2008, 04:34 PM: Message edited by: Paul Adsett ]
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