Better to set the multimeter on the DC voltage scale and check across the terminals with the master on. If you show a voltage , that is your loss thru the contacts. Bill
To: [EMAIL PROTECTED]: [EMAIL PROTECTED]: Sun, 13 Apr 2008 15:35:57 +0000Subject: [ercoupe-tech] Re: Voltage Regulators for generators Bart, One more thing, put an ohm meter across the master switch and make sure the contacts are still good. M--- In [email protected], "Mark H." <[EMAIL PROTECTED]> wrote:>> Bart, I had trouble with one too. I did everything that you said. > Plus I took an ohm meter and checked all the wires and locations, > it's easy to get one in the wrong place on the voltage reg. Then I > even ran it up and flashed the reg. It still didn't work. I gave up > for the day and went and had a drink with my buddy that was helping > me. the next day I tried flashing it a gain and it worked. sometimes > they are just stubburn. The light on the panel might be a kit that > skyport used to sell. It lets you know if you left the master switch > on. It will go out when the engine is running, and on when the master > is on without the engine running. And one more thing, the extra > switchs, if they are not in use take them out and the wiring. It's > just one more thing to get shorted. Hope this helps. Mark> > > > > --- In [email protected], "robertbartunek" > <robertbartunek@> wrote:> >> > Seems like we checked everything. We had IA's and A&P's scratching > > their collective heads over it. Fuse was OK, master switch on all > > the time, ran it up to 1300+ to ensure generator cut-in speed, > > flashed the field etc. Really puzzling. The latest theory is that > > the master switch might be mis-wired so that will be looked at in a > > couple of days or the voltage regulator needs to be set higher > > because of the installed battery. There is also a big red light by > > the circuit breaker panel that never illuminates under any > > circumstances although the bulb looks good. It looks light it might > > be a generator failure warning light. > > Chasing down the wiring will be a gritch because there are also two > > electrical switches, one under the instrument panel on the left > side > > and the other at the bottom of the panel on the right side which > > apparently do nothing. I think the one on the left is for a > solitary > > red panel light on the left side but it doesn't illuminate even > > though the bulb looks good. > > But hey. The plane sure flies good.> > Also, I can relate a little bit to Syd and his coupe. When I was > > cleared for take-off from Sun-n-Fun, tower said "The chrome Ercoupe > > is cleard for take off". Wheeeeeeee!> > Bart> > --- In [email protected], "Hartmut Beil" <hbeil@> wrote:> > >> > > Bart.> > > > > > I assume you are looking for the charge at rpms of 1300 or more. > > When in idle rpm, the generator can not produce enough energy to > > trigger the regulator even.> > > > > > This is the reason why generators got replaced in cars because > the > > engines are mainly idling in cars when waiting at traffic lights.> > > > > > Hartmut> > > > > > > > > > > > ----- Original Message ----- > > > From: robertbartunek > > > To: [email protected] > > > Sent: Sunday, April 13, 2008 2:22 AM> > > Subject: [ercoupe-tech] Re: Voltage Regulators for generators> > > > > > > > > At Sun-N-Fun, discovered battery getting weak while trying to > > > relocate aircraft from one mudhole to another. (FYI, they have > an > > > excellent volunteer aircraft repair group there that will fix > > your > > > airplane but you have to buy the parts). Had generator tested > > > by "Buddy" downtown and he said it was "burnt". Found another > > > correct generator at the Aircraft "Fly" Market on the field and > > it > > > checked out good so installed same. Still no charging so > another > > > good Ercouper who shall go unnamed (thanks Bill) just happened > to > > > have a new voltage regulator in his Coupe that he for some > reason > > > threw in at the last minute. Installed the new voltage > regulator > > and > > > still no charge (+) indicated on the guage. I get a decrease > when > > > the landing light is on, but no increase after start or other > > load on > > > the battery. Any ideas? Anyone?> > > BTW, y'all missed a good show. The Mustang ride was the best.> > > Bart> > > --- In [email protected], "Harry L. Francis" > > > <harrylfrancis@> wrote:> > > >> > > > Frank, Just a note about regulators.... one must be careful > to > > > not run the engine with the master switch off, as this isolates > > the > > > generator from the battery , and allows the generator to self -> > > excite, and over load the regulator, and burn out brushes...> > > > > > > > See Memo No 23, para 4 (c)..."To prevent undue generator bush > > > wear, the system should not be operated with the master switch > in > > the > > > off position., battery disconnected or the fuse burned out. "> > > > > > > > Harry> > > > > > > > __________________________________________________> > > > Do You Yahoo!?> > > > Tired of spam? Yahoo! Mail has the best spam protection > around > > > > http://mail.yahoo.com> > > >> > >> >> _________________________________________________________________ Get in touch in an instant. 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