Interesting... something I hadn't noticed before. I was going over the wiring diagram for my '66 Beetle, and I noticed that the front turn signal assemblies are not wired to have a parking/running light them, yes I know that there is the parking/running light in the headlight assembly. They look like they were meant to only have a single filament bulb for turn signals only.
HOWEVER, my '66 is currently wired for a running light in the turn signal assembly, and yes it does have an 1157 (twin filament) bulb in the holder, so it has both turn signal and running light. The little light in the headlight assembly is always on when the lights are on. Funny thing is - that when I pull the headlight switch all the way out, the running lights in the turn signal assembly go out. Also I would have to pull the light switch to the paking lights position before the engine would start. Somebody wired the ignition wrong!!!
My point?
Two words. Previous Owner. It just goes to show you that you never know what you are getting when buying an old car. Previous owner syndrome lasts long after the ink has dried on the title after you buy it!
My other point? Well, I bought a new '66 wiring harness for my car. Again, however, I will have to make modifications to it, as I am not going with a generator, but with an alternator, and it will be 12 volt not 6 volt. This in it self requires certain modifications. Yes this will be a modification to the way it came from the factory, however if it is done right then the previous owner syndrome is not repeated per say. Usually crappy mods are associated with previous owner syndrome. Especially when it come wiring issues, most VW's wiring harness are hacked up and patched beyond belief, and the results are lots of questions here. Hopefully the weather gets nicer soon so I can completely rewire my car. Not a real difficult job, but one that needs to be done right. I will try to get good pics before and after, so stay tuned.
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1966 Type I