No announcement yet.

Generator Question?

  • Filter
  • Time
  • Show
Clear All
new posts

  • Generator Question?

    My brother came over today and asked me to show him how to move the third brush to set the charging rate. I tried to move the brush and it wouldn't move. I looked at one of my spare generators and it moved like I thought it should. I then found a screw on the end plate that had to be loosened then the brush would move. Is this a early generator or maybe not Model A?

  • #2
    Hmm, don't recall a screw....pix?


    • #3
      Not original to the Model A's.


      • #4
        The adjustable ring should be held in place by two Y spring clips, which are held in place by 2 screws.
        They don't need to be loosened to move the adjustable brush ring. The ring may be stuck from years of never being adjusted. Usually using the opening as a fulcrum for a screwdriver against the spring post on the ring will get it to move.

        Post Model A production end plates have the adjustable ring Y spring clips held in place by rivets, but the generator output is adjusted the same way.

        If you buy an electronic voltage regulator from me it's important to know which end plate you have, as the EVR for the rivet one is different than the EVR for the screw end plate. The second picture is the post Model A production with the riveted Y clips.

        Generator End Plate A.jpgGenerator Brush Plate B.jpg
        Attached Files


      • #5
        AND, if the charging rate you're running has worked GOOD for you, for a LOOOONG time, DON'T DIDDLE with it!!!


        • #6
          Originally posted by BILL WILLIAMSON View Post
          AND, if the charging rate you're running has worked GOOD for you, for a LOOOONG time, DON'T DIDDLE with it!!!
          Bill, he was over charging, but I do agree with you about don't fix things if they are not broke!


            BILL WILLIAMSON commented
            Editing a comment
            Chief taught me to repair things RIGHT & when they're working GOOD, leave them ALONE.
            Especially on the "other site", I see Guys that can't keep their hands off their cars & are constantly WHININ' for HELP!

        Related Topics


        • BAAP
          Power House Generator Question
          by BAAP
          The judging standards talks about three different styles of Power House generators. The two earlier versions had 5 brushes and the one later version had only 3 brushes. I've been asked to look into having the black bakelite brush holder plates made. I've talked to one of my sources and he said that it would be no problem making it. Before we spend a bunch of time on this project we have a question...
          10-11-2019, 08:33 AM
        • Mitch
          Generator & Cut Out Information, Operation, Repairing, EVR installation!!!
          by Mitch
          Generator Brushes and Adjustment and How It Works.

          By :: Tom Wesenberg

          I'm asked quite often about brush adjustment and how they work, so hopefully these pictures will help.
          The first picture is a cutaway taken at the Model A museum at Gilmore Auto Museum in Hickory Corners, Michigan. The second picture shows the 3 brushes. This happens to be the style...
          You do not have permission to view this gallery.
          This gallery has 2 photos.
          05-19-2017, 09:51 PM
        • smittykid
          I just received my EVR from Fun Projects
          by smittykid
          In reading the instructions it mentions adjusting the 3rd brush. The instructions also mention loosening and tightening the 3rd brush nut. I just rotated the 3rd brush without loosening anything and obviously did not retighten anything either. What am I missing here? I don't want to destroy a new $64 EVR or start a fire.( 6volt + ground)
          08-28-2017, 12:43 PM
        • Tom Wesenberg
          Identifying Your Generator
          by Tom Wesenberg
          Over the years generators have been swapped on the Model A's, so now days you can normally have 1 of 4 different styles. First came the 5 brush powerhouse, then the 3 brush powerhouse, then the long generator known as the Autolite style. After Model A production ended and the Model B began, the generator also changed slightly, and now many B style generators can also be found on the Model A. People...
          01-03-2018, 03:00 AM
        • Supergnat
          Third brush adjustment question
          by Supergnat
          While visiting a friend today he said his generator wasn’t charging and asked about adjusting the third brush on his generator. He had the band off and the brush could be easily moved to change the adjustment. I told him I would stop back tomorrow so we could make the adjustment. I read the tips write-up but have one additional question. After the brush is adjusted is there a way to secure it or...
          06-10-2020, 04:53 PM
        • Tom Wesenberg
          More Powerhouse Generator Information
          by Tom Wesenberg
          I am checking out a 5 brush powerhouse that wasn't working. I can see someone has worked on the field coils, by all the non factory solder joints connecting each of the coils. I connected my 6 volt battery charger to the field, and it draws 2 amps, which is good, but I also wanted to make sure each coil's polarity was correct, so I used my compass. Remember to connect the battery charger with positive...
          05-23-2019, 06:42 PM
        • smittykid
          Proper charge rate?
          by smittykid
          I'm running a 6 volt generator on a pos. ground system. I was afraid the old cut out was over charging the battery. I replaced the old cut out with a new NUREX semi-conductor cut out. At regular idle the amp meter shows about 5-6 amps of charge. Running down the road- 40mph it shows around 12 amps charge. No lights on. What is the correct charge rate? Maybe the old cut out wasn't bad after...
          08-17-2017, 11:28 AM
        • Chuck Sea/Tac
          Contradiction in Les Andrews books RE insulating brush holders.
          by Chuck Sea/Tac
          In the red mechanics handbook, he states.”Using an ohm meter, check continuity of the brush holders to the end plate. Only the movable “adjusting” brush holder should be grounded. If either of the other brush holders is grounded to the end plate, check “why”.
          Then, in the troubleshooting and diagnostics book, he says the opposite .”This third brush like the lower negative...
          11-20-2020, 07:50 PM
        • Tom Wesenberg
          Made Some Progress on the Voltage Regulators
          by Tom Wesenberg
          After several interruptions this summer, I finally have some electronic voltage regulators ready to mail. The most common generator is the Autolite style, which is the common long generator, so those are the first ones I finished. Now I need to finish the other 3 styles, which I also started earlier this summer. Those 3 styles are the 5 brush powerhouse, 3 brush powerhouse, and the later post Model...
          11-12-2018, 05:19 AM
        • gdaquilina
          Model A Generators
          by gdaquilina
          The generator I have on my Town Sedan now has an oil cap on the front and rear plates with bushings on both ends. The output connection is on the rear of the cutout and two wires exit the output connection. Am I correct in assuming that this is maybe an early V-8 generator? If it is, is their any difference in its output from the Model A ones? All internals appear as the parts diagrams show for...
          12-17-2018, 08:51 PM