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Old 08-15-12, 12:04 AM   #1
jacksbike
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Raleigh Superbe dynohub-not working

Hello All,
I have obtained a Raleigh Superbe bike in great condition. When I got it, the wires running down the fork to the dynohub had been cut. I spliced them, and connected the copper to copper, and silver to silver. Neither front or back lights are working. There is no rust inside the front or rear lights and no damage that I can see. Besides the possibility of both bulbs being out, anyone have any ideas what to do ? Where can one find replacement bulbs these days ? Ebay, Harris ? Thanks in advance for any suggestions.
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Old 08-15-12, 03:54 AM   #2
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Try using a volt meter to see if there is any hub output at all. You can buy bulbs from a couple of places, Radio Shack used to carry them at one point. Reflectalite in the UK carries replacement bulbs, and if you happen to be in the US I have heard that Flying Pigeon LA carries them. (They order in bulk from Reflectalite) The rear wedge base bulbs are getting harder to find. I have converted my tail light to LED by using a 168/198 LED mini wedge base bulb designed for use in a automotive marker lite. It was ~$5 at a parts house. I am still running the stock headlight bulb.

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Old 08-15-12, 06:51 AM   #3
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What Aaron said about the VOM, first. If you find you need to tear into it to clean up the internals, don't separate the magnet from the armature without a keeper. I use a large socket for that purpose.

I run LEDs front and back on my Superbe. I was underwhelmed by the output of the stock lighting.
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Old 08-15-12, 11:10 AM   #4
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Originally Posted by bikamper View Post
What Aaron said about the VOM, first. If you find you need to tear into it to clean up the internals, don't separate the magnet from the armature without a keeper. I use a large socket for that purpose.

I run LEDs front and back on my Superbe. I was underwhelmed by the output of the stock lighting.
Thanks for the info. I am quite certain that I do not own a voltmeter. Even if I did, where do you attache the leeds to ? The wires for the front, and then the back ? I will try Radio Shack. I really do not want to get into disassembling the front dyno hub. I know that there are many possible problems, but I am reaching to solve this as easily as possible, and not spend more time on the dyno hub system than I spent tuning up and cleaning the entire bike ! Thanks, again,and I am still open to any and all suggestions.
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Old 08-15-12, 11:45 AM   #5
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There are two little bolts --studs-- sticking out of the side of your dynohub. Each should have a wire attached to it with a 5 mm nut. That's where to check if your hub is generating any power. A voltage meter would be nice but any flashlight bulb should light up when connected to those.

From my experience the problems are most likely that you have a dead bulb, or the wrong bulbs; if not that, then the wires are attached to the switch wrong.
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Old 08-16-12, 03:10 PM   #6
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Just an FYI you can stick your fingers on the studs and spin the wheel...you will know very quickly if it is working or not.

Aaron
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ISO: A late 1980's Giant Iguana MTB frameset (or complete bike) 23" Red with yellow graphics.

"Cycling should be a way of life, not a hobby.
RIDE, YOU FOOL, RIDE!"
_Nicodemus

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Aluminum: barely a hundred
Which one would you rather have under your butt at 30mph?"
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Old 08-16-12, 08:03 PM   #7
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Just an FYI you can stick your fingers on the studs and spin the wheel...you will know very quickly if it is working or not.

Aaron
Yeah, think tongue and 9v battery.
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