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Stan The GEN drive ratio is 1:2.035 conterclockwise as viewed from rear of engine. Keep at it you find the problem and say DARN $$$$ [EMAIL PROTECTED] Joe W --- Stan <[EMAIL PROTECTED]> wrote: > ----[Please read http://ercoupers.com/disclaimer.htm > before following any advice in this forum.]---- > > > > Ok, I *know* Ive got a demonic generator now. I > completely disconnected all the leads on the > generator (at the engine) and checked it while the > engine was running about 1500 RPM. Grounded the > field and checked the armature voltage. Same as > last time when I checked it at the voltage > regulator- about .03 volts. When I ungrounded the > field the voltage went up just slightly to 0.5 > volts. Just to be sure I used a jumper set and > grounded the frame of the aircraft to the case of > the generator and it still didnt read anything > different. > > > > So I checked and marked the direction of rotation, > pulled the bugger off (which requires pulling the > left mag) and brought it in to a local auto parts > store to get checked. The fellow put it on his > machine and spun it the correct way and as soon as > he grounded the field the generator put out a little > over 14V as slick as can be. > > > > What in the **((&&&^%% is going on ??????? The > same thing happened last time I pulled the generator > off- it wasnt outputting while on the plane but was > when I took it in to *two* separate shops they both > said it was working fine!!! > > > > The only thing I can possibly think of is that the > brushes may be floating. I know Ive heard of this > happening with electric RC planes when an engine is > run too fast. The fellow at the store said that he > thought he was spinning the generator at about 1500 > RPM but in the plane it appears by eye that the gear > ratio has got to be about 4 or 5 to one which would > put it up over 6000 RPM and maybe at this higher RPM > the brushes cant handle it? Anybody know the exact > gear ratio? > > > > What else could it be????? Ive got to get this > sucker figured out, its driving me crazy J > > > > Thanks again folks. > > > > Stan > > > > --------------------------------- > Do you Yahoo!? > Yahoo! Tax Center - File online, calculators, forms, > and more > ========================================================================== ==== > To leave this forum go to: > http://ercoupers.com/lists.htm > Search the archives on > http://escribe.com/aviation/coupers/ > > > __________________________________________________ Do you Yahoo!? Yahoo! Tax Center - File online, calculators, forms, and more http://tax.yahoo.com ========================================================================== ==== To leave this forum go to: http://ercoupers.com/lists.htm Search the archives on http://escribe.com/aviation/coupers/
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