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>When you just widen the point gap, the >spark starts sooner (timing advances) and >lasts longer. If you just narrow the point >gap, the spark hits later (timing retards) >and has a shorter duration. Can you explain what the practical result of this is? IOW, when the timing advances/retards, what is the effect on the performance? You have to excuse me, but I'm pretty ignorant. I really don't understand too much how a car actually works. I'm like an alien trying to operate on a human being just by reading the manual, without really understanding how a human "worse" :^) Altho I am learning, albeit slowly. >I find that my 3's have been very sensitive >to correct timing. Well, they seem to only >be right-on with full, smooth power when >timing/gap/advance is all working just so. That is certainly the case with the B. I have had her tuned and then she goes out a week later. It never lasts long. One long trip or a big hill on a hot day throws her right out. It's frustrating. >The four "lobes" on the distributor shaft >that push the points open as the shaft >rotates. Oh, OK. How do I know if these are dry or need grease, like Jim said? I'm gonna go down today and try again. I'll check the shaft for play, too---see how much there is. Lori ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org