There is an exploded diagram of the dizzy
http://web.archive.org/web/20010702093053/www.physics.ohio-state.edu/~jrdemers/280ZX/distributor/D79.gif
another one
http://www.atlanticz.ca/zclub/techtips/distributorrebuild/index.html
specs for quite a few of them can be found here.
http://web.archive.org/web/20050308055504/home.att.net/~jason510/dizzy_specs.htm
Oh and a rebuild how to.
http://web.archive.org/web/20041207181339/www.jrdemers.com/280ZX/distributor/distributor.html
-Dime