You can try the method I used,
look at the last few pics on the main page (internet exploder users may have to go right rather than down to see the pics) and look for a link to "vaccuum system" at http://www.mykr2.com belt driven vaccuum pump vw2100 all home brew. turns the pump at 2500 rpm when the crank turns 3800. jg turbo 2180 kr2, N611GB Puyallup, WA On Mon, 2009-02-23 at 18:40 -0500, Gary Shubert wrote: > > I've been struggling to find a way to drive my vacuum pump on my KR2S... >