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EFV-8 Club Forum / General Ford Discussion / Three Brush Generator

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Posted By Discussion Topic: Three Brush Generator -- page: 1 2     Dream38v8 08-02-2019 @ 9:09 AM reply profile send p.m. New Member Posts: 178 Joined: May 2016 I've installed a Fun Project positive ground 6v VR. I went to adjust the third brush as directed in their instructions. I can not locate the nut to loosen the third brush. My Ford is a '38 Deluxe Sedan (85hp) model. Do all generators having a nut to loosen the third brush on the generator. If this brush can not be adjusted what do I do? Thanks, Ray Ray kirkstad 08-02-2019 @ 10:37 AM reply profile send p.m. New Member Posts: 192 Joined: Jul 2017 I recently did the same thing with my 36 coupe three brush generator.The third brush on mine will move when you apply a moderate amount of pressure in ether direction to it, It's hard to move with just finger pressure so I used a small nylon trim removal tool .The instructions does say loosen third brush nut, (if equipped). I would think the 38 would be the same. My unit works great buy the way, just a bit of a nuisance to get adjusted just right. Frank 37RAGTOPMAN 08-02-2019 @ 11:07 AM reply profile send p.m. Senior Posts: 1969 Joined: Oct 2009 it takes some pressure to move the third brush, make sure you have the correct brush to move, also with the lights on it sure just be at 0 or just a hair above, for a rule of thumb, this way it will not discharge at night, you will have to adjust to your driving habits. take a reading on you battery to see if it stays charged if not adjust higher, the owners manual explains this, hope this helps, 37Ragtopman Dream38v8 08-02-2019 @ 12:05 PM reply profile send p.m. New Member Posts: 178 Joined: May 2016 Thanks Ragtop and Frank. Not being an electrical kind of guy I used the car's amp meter. I am unsure as to where to connect the amp meter leads. Two reasons behind my request is my Optima battery (two years old) would not start the car the other day. I usually keep a charger on when the car isn't in use. I haven't charged the battery much this driving season. Most trips have been short daylight runs. Since the battery was low I put the charger back on. So long story short using the car's amp meter it appeared to operate as the VR instructions stated. No need to adjust the third brush. I should probably learn how to connect the amp meter so I can actually verify the reading. No eyeball. Ray kirkstad 08-03-2019 @ 9:50 AM reply profile send p.m. New Member Posts: 192 Joined: Jul 2017 To ease in the adjustment of my third brush setting, I mounted a amp gauge on the back of my generator. You would attach one wire to the B terminal of the VR and attach other wire to batt. Be careful to never touch the A terminal on the VR! Frank Dream38v8 08-05-2019 @ 8:30 AM reply profile send p.m. New Member Posts: 178 Joined: May 2016 No being an electrical guy I need to know which setting on my amp meter to us. See attached pic. I also could have the red lead connected into the incorrect meter connection. Ray MG 08-05-2019 @ 8:39 AM reply profile send p.m. Senior Posts: 1262 Joined: Nov 2009 I'd say use the DC 10AMP setting. However, I think you would be better off with an analog meter - a meter with a needle. Digital meters like the one you pictured are susceptible to interference from the high voltage ignition circuit.... Dream38v8 08-05-2019 @ 9:01 AM reply profile send p.m. New Member Posts: 178 Joined: May 2016 Thanks. I also have an older analog meter. The third brush is set as far counterclockwise as possible. I attempted to move the brush with a nylon tool with no luck. It will not budge. It seems to be frozen or fastened with a nut, but I can not locate the nut. Any ideas? The VR instructions mention the third brush should be somewhere close to the middle for bust results. Ray MG 08-05-2019 @ 9:24 AM reply profile send p.m. Senior Posts: 1262 Joined: Nov 2009 Show us a picture of what you've got. You should be able to get in there and grab the brush with your forefinger and thumb to move it. Or, you might have to gently pry it. Once its free, massage the brush up and down for awhile until it moves more freely. Do these things with the engine turned off.... Dream38v8 08-05-2019 @ 9:42 AM reply profile send p.m. New Member Posts: 178 Joined: May 2016 MG, here are two pics of the third brush. I hope this helps. I have used a moderate amount of force with no luck (nylon tool and screw driver). Ray

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