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The "bump" can also be called pitting, technically its electro-migration. When the electricity travels from one side of the points to the other, a minute bit of the metal is carried from one side to the other. This effect is made worse by a faulty condenser. The condenser is what prevents "arcing" between the points as they open. As for the timing, well personally I just replace the points, and condenser (should always be replaced together) when the pitting is too bad. That's really a judgment call though, and its not a hard one to make because points are cheap. The "bump" isn't going to matter all that much when setting the timing though, just adjust the points with the gauge. THEN check the dwell and the timing, with the engine warmed up of course. Drake 72 Square "Ginger" FI MT 63 Bug "Christine" Darkside > > I have another question about points. I've been using a feeler gauge, > then checking with the tach dwell. I have a lot of trouble with the > gauge. When I slip it between the points, I feel a little bump in > there---is that normal, or is there some kind of blemish or deposit on > the point (I think it's on the one that doesn't move, the one to the > left). If it's normal, should the gauge slip under the bump, or do I > just put it on the side of the bump? > > Lori > > > > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org >