Based on the Bosch Spark Plug database fiche I have, the original VW parts
fiche and ETKA, some (but not all) Wasserboxers of the 85 thru 91 vintage
were supplied with tri-electrode Bosch W7DTC or WR7DTC plugs, which have a
slightly longer reach.  I've run them for years in my 2.1 84 Westy - no
problems to report.  Other replacement alternatives are Bosch W7CC0 (also
OE) or Bosch W7CC, both of which are the standard single electrode.
--
Jim Thompson
84 GL 1.9 "Gloria"
84 Westfalia 2.1 "Ole Putt"
73 K Ghia Coupe "Denise"
72 411 Station Wagon "Pug"
oldvolkshome@gmail.com
http://www.oldvolkshome.com
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On 10/7/07, Rob <becida@comcast.net> wrote:
>
> I just took some plugs out to check them, they were Bosch Super and
> had 3 of the adjustable prongs going to the center post.
> I'd never seen them before but figured the gap would be the same but
> 'even' for all 3 of them.
> Any comments or education to pass on?
>
>
>
> Rob
> becida@comcast.net