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On 2 Aug 2004 at 0:56, John Jaranson wrote: > OK, with the wiper switch off I see 12-14V on both side of the voltage > drop. With the wiper switch on I see 12-14V on the feed side of the > voltage drop and 0V on the output side of the voltage drop. This is > just a BugPack Voltage Drop. It looks like a small anodized, finned > aluminum cylinder with a couple of mounting tabs sticking off it and an > electric pin on either end. The voltage drop does heat up when the > wiper switch is on, but I get nothing on the output side. Is it gold colored? Sounds like one of the big Dale high power resistors. I gather there is no marking on it that would indicate its resistance. Look here. Is this it? http://www.vishay.com/docs/30201/rhnh.pdf If this is the right part, which one did they sell you (which wattage?) The RH- 50 is about 2" long and is good for 50 watts, but I think they expect you to bolt it to a panel to help dissipate the excess heat. Using a resistor will work, but note that in the end this approach consumes FOUR TIMES as much electrical power as upgrading to a 12V wiper motor. Since this motor is one of the major current consumers in our cars, this is no small issue. > Bad voltage drop? I solder a couple of lengths of wire to the pins and > then crimped on spade connectors to make all the connection. Anything > I could have done during that process to hurt the voltage drop? If it's just a resistor, then there really isn't much that could go wrong. It COULD be bad, or it could be the wrong resistance, or your wiper motor might be drawing too much current. You SHOULD be able to read it's resistance. If your meter only has an Ohms x 1000 scale I would expect this resistance to read close to zero. It's probably something less than 5 Ohms. -- Jim Adney jadney@vwtype3.org Madison, WI 53711-3054 USA ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~ Shameless link for search engines: http://listarchive.type3.org ~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~