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Subject: NAA FORD ROCKING AMP METER

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Norman Picard    Posted 08-09-2017 at 15:06:53 [URL] [DELETE]        [Reply] [Email]  
  • NAA FORD ROCKING AMP METER
  • Hello
    I own an old NAA since the last 20 years
    I am trying to find out why the ampmeter needle is rocking and I think the generator is not working since I had to replace the batery a few times.

    I check the brushes in the generator and they look ok to me . I also ordered and received a restoring kit from 8N but its no good the brushes in the kit are too large and the bracket are not the same model

    Can somnole guide me ? as to why the ampmeter needle is rocking all the time at low or high RPM?

    Thank you

    Normand Picard
    QUEBEC CANADA

    ncorrigible    Posted 08-09-2017 at 18:30:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA FORD ROCKING AMP METER
  • A new ammeter is dirt cheap and you can easily hook it in line with the wire to your OEM ammeter. If they both rock, take the generator / voltage regulator for service and throw the new one on the shelf. If the new one is steady - well, you have a new one.

    HCooke    Posted 08-09-2017 at 17:31:50 [URL] [DELETE]        [Reply] [Email]  
  • Re: NAA FORD ROCKING AMP METER
  • Take your generator and voltage regulator to an automotive electric shop. They can diagnosis and fix it.

    Tim Daley(MI)    Posted 08-09-2017 at 15:20:02 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA FORD ROCKING AMP METER
  • Norman-
    I am assuming you mean the ammeter needle is bouncing back and forth. It could be a few issues: Loose belt, bad wiring/short, bad voltage regulator, weak battery, or more. You may be better off taking the whole generator, the voltage regulator, and the ammeter, to your trusty local starter/alternator shop -the one who knows all about these old 6-volt devices as they can bench test all, tweak if needed or rebuild if needed. You do know these old machines were originally wired as 6-volt/positive ground systems right? Have you verified what you have is all correct according to JMOR's Wiring Pictograms? SEE HERE (click on LINK)

    Tim Daley(MI)

    36 coupe    Posted 08-14-2017 at 17:11:45 [URL] [DELETE]        [Reply] [No Email]  
  • Re: NAA FORD ROCKING AMP METER
  • Some ammeters ar not compensated.Let them flicker.

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