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-   1958 To 1960 Squarebirds - General Technical Discussion (http://squarebirds.org/vbulletin/forumdisplay.php?f=14)
-   -   voltage regulator recommendation? (http://squarebirds.org/vbulletin/showthread.php?t=21998)

JohnG 09-24-2017 11:19 PM

I did polarize it. Worked fine for a week then ceased. Been
on the shelf for about 10 years. Sometime I will dig into it and see what failed.

Points on new units still need to be cleaned, just as ignition points do. A business card usually does the trick.

simplyconnected 09-25-2017 05:34 AM


Originally Posted by JohnG (Post 111248)
...Points on new units still need to be cleaned, just as ignition points do. A business card usually does the trick.

I'm a little more aggressive with the abrasive. I use 170-200 grit to knock down any peaks and to make the contacts conform to each other. All it takes is a few swipes, up and down for both sides of the contacts.

I'm posting the regulator that Marcelo sent to me from his '60 T-bird. I went through the contacts. This one is made by Echlin, a very good name in automotive electrics (and made in USA).

John, to 'prove' the generator, pull the field wire off the regulator and apply +12 to that wire. You should have a volt meter on your battery so you can see the voltage climb. Bump the rpms up to 1,200 or so. Your generator should have no problem outputting 13.5-14 volts, shown on the meter. When you get there, re-connect the field wire back to the regulator. If you don't get 14 volts, your generator is suspect. - Dave

JohnG 09-25-2017 08:59 AM

thanks . . . good test . . .

have seen the generator put out 14.2 volts so not worried about that at this point in time.

business cards: new points only. Gets any sheen or oxidation off.

Joe Johnston 09-25-2017 09:24 AM

As an option (and with no intent to sidetrack this thread), I have seen these original voltage regulators modified with new electronic internals. Use the old cover and it looks original. I have not done this as my 63 still has the original style regulator and alt.

JohnG 09-30-2017 03:11 PM

I spent some time today with the charging system (raining).

My original problem was voltage too low at road speed with high beams on. Down around 12.2.

I adjusted the point gap by the "Arm" post after cleaning. Basically closed the gap a little.

Trial and error, for anyone trying this. A little change produces significant changes in voltage levels. Easy to overshoot the mark.

One other thing: take voltage readings with the cover ON. Removing it changes the readings significantly, due perhaps to a magnetic field associated with the cover.

Bottom line: I now have 13.4 volts at road speed with the high beams on, 14.2 or so with them off. Much better situation. I live in the country on a wooded road so headlights are important.

That done, checked out the Brand X new 1974 regulator mentioned earlier. Dead in spite of all efforts at revival. Go figure.


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