[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
On 26 Dec 99, at 17:46, Toby B wrote: > If the rotor was shorting out to the center post of the distributor, it > would effectively ground the output of the coil. Then an inductive > timing light wouldn't get enough wattage to fire- since it's sensing > power flow thru the wire, and power is volts X amps, a dead short will > pull the voltage in the primary wire to almost zero. Thus, you'd need a > big current spike to generate an electromagnetic field big enough to > trip the timing light. The inductive pickup responds to current, not power, so my best guess is that the instantaneous current is high during a spark, when all the charge flows "quickly." My guess is that this short to ground was resistive enough that it conducted the same amount of charge, but dragged it out over a long enough period of time that there was never a current pulse high enough to trigger the timing light circuit. I have seen 1 other shorted rotor, but that was not a genuine Bosch, AND it DID still trigger my timing light. Jim - ******************************* Jim Adney, jadney@vwtype3.org Madison, Wisconsin, USA ******************************* ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org