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On 23 May 2002, at 11:55, Martinez, Leon wrote: > I don't see how you could possibly get that much current (at that voltage) > out of a standard gen at idle. What kind of numbers do you get at something > like 2000-2500 RPM? > =========================================================== > Good gen ? It's more than that. You need a certain rate of change of flux thru the armature. Part of that is due to the field windings and the other half is due to the angular velocity of the armature, which is simply proportional to the RPM. As long as you have a stock gen with the std # of turns in the field winding and a normal armature, there's nothing much else you can do about it. The only thing I can think of is that if you have the pulley set wide, this lets the belt drop to a smaller radius, which makes the gen run a little faster for a given engine RPM. I'd like to try this here, too. I've never actually done it. I'm just going from what the manuals state. I'm stuck with the flu right now, however, and have to go bring my daughter home from college next week, so it will be awhile before I can get to it. You may have to remind me. Don't be shy! ;-) > The voltage out of the generator D+ is much higher than the voltage out of > the regulator. With the red wire disconnected it goes up to 32-34 volts > and with the load I noticed it above 15 volts, I guess that is what the > regulator is for. The regulator is part of a feedback loop with the generator. When you disconnect that wire you're breaking the loop, which makes the regulator think there is no output, so it tells the gen to go full on via the field winding, thus the high output. This is perfectly normal, but you don't want to do it for more than a few seconds at a time. All the time you're doing this the field windings are running at 200% capacity. If you keep it up too long they'll burn out. > My checks were all done without reving the engine while holding the meter in > one hand and making sure there was a good connection on the other. That's okay, BTDT. > Maybe my meter is inaccurate, looks like those metal/glass Borg-Warner types > for a truck dash and says made in Taiwan. Looks like good quality but it > cost me just 5 dollars in Mexico. Probably close enough for these purposes. - Jim Adney, Associate Researcher Plasma Physics Group, Department of Physics University of Wisconsin Madison, Wisconsin, USA 608-262-4643 ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org