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On Fri, 2005-02-11 at 20:24, James Montebello wrote: > I'd offer that it's a good idea to completely remove > the vac canister if you're going to use a vac dizzy > w/o the vac. If you leave the can in place, you can > get more timing jitter from the vac diaphram flapping > around undamped and varying the timing randomly. > Plugging the vac port helps some, but removing the can > completely is the best thing to do. > If you look at the design of the VW FI distributor, you need the vac unit to hold the breaker plate stable. If you remove the can, the plate can move all over the place. The can, as installed, is spring loaded toward the home position. This is the way it is designed to run. -- Russ Wolfe '71 FB AT '66 FB MT '64 T34 (not running) '65 T1 (not running) russw@classicvw.org http://www.classicvw.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~