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On 30 Sep 2004 at 7:57, Jason Weigel wrote: > Yesterday I was forced to buy a new cap for my early cast iron ZV/PAU 4R6 > Bosch dizzy. My one year old son pulled it off the computertable and blew > the cap into 3 pieces ;( So I went by a good friends place (Interstate VW) > to rummage around. I found some cool stuff and came home with some questions > as well. Visualy, and I mean every aspect like internals and such the Bosch > 4R2s and 4R5s look like the T3 4R6? Same caps, rotors and condensers as > well. Thats where I got my new cap. What is the differance between these? Those early numbers don't mean anything to me. Do you know what any of them mean? I suspect that each letter actually means something, but I've never known what. I've got some old (1970) service literature that mentions this designation for a lot of Bosch distributors, but there's no explanation given. Just from looking at the parts, I'm guessing that the R stands for "Right", as in right hand rotation. They seem to do the same thing for generators, too, where I see both R & L. In general, Bosch gave the complete distributor assembly a number, so that if any small thing on it changed, it got a whole new number. > Lucky scores of the day: A back-up Bosch ZV/PAU 4R6 Dizzy, early dark brown > caps (2), and a stubby 6v coil! $25 Nice catch. ;-) -- Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~