[TR] amp-meter readings--TR3

tom white tswhitez123 at hotmail.com
Sun Jan 3 09:54:02 MST 2010


I will elaborate a little further.  This may not be relevant to original TR3s
since my car has been rewired with a non-original loom.

A ground wire is connected to the center post on the back of my amp meter.  I
had problems with the amp meter  lighting up intermitantly when I turned on
the dash lights.

I found that the center post the ground wire was attached to had some
oxidation at it's base.  Once I cleaned off the oxidation the amp meter light
worked great.

Best regards,
Tom



> From: wbeech at flash.net
> To: yellowtr3 at yahoo.com; triumphs at autox.team.net
> Date: Sun, 3 Jan 2010 07:38:59 -0700
> Subject: Re: [TR] amp-meter readings--TR3
>
> Frank,
> Have you tried another amp meter, temporarily, to see if it acts the same
> way?  It sounds like you have tested everything else and the meter may be
> just a little loose inside, assuming you have re-checked the connections as
> Tom as suggested. (BTW, check all the connections that affect the amp meter
> in addition to the back of the gauge itself.)
> Bill
>
> -----Original Message-----
> From: triumphs-bounces at autox.team.net
> [mailto:triumphs-bounces at autox.team.net] On Behalf Of Frank Fisher
> Sent: Saturday, January 02, 2010 10:45 PM
> To: Tom Householder
> Cc: triumphs at autox.team.net
> Subject: Re: [TR] amp-meter readings--TR3
>
> thanks Tom
> im not sure if i have a problem or just a coincidence.
> my car is
> a fresh (500 mile) renovation.
> at about 250 miles the generator died. buddy Paul had given me 2 spares so
i
> just changed it out.
> then the amp-meter
> started to jump about. sometimes +30A others -15A.
> then about a week ago it
> stopped jumping about and read just a tad less than zero amps. when i ran
it
> in the dark it discharged the battery and did show negative amps on the
> gage.
> so i now changed out my control box and its giving charge again. the
control
> box i changed out was brand new.
> the amp-meter is still a little jumpy, but every thing is running good.
> the generator gives out +/-30 volts and has about
> 6 ohms resistance. so i think its OK.
> im just curious if your amp-meter likes
> to "jump" around a little.
> Frank
>
>
> ________________________________
> From: Tom
> Householder <trhouse at columbus.rr.com>
> To: Frank Fisher <yellowtr3 at yahoo.com>
> Sent: Sat, January 2, 2010 7:53:26 PM
> Subject: Re: [TR] amp-meter
> readings--TR3
>
> not sure what your problem is however I can say that My TR2 with 7k
original
> miles lot an amp meter.. the solder joints went bad
>
> I simply
> re-soldered  the shunt and put it back in
>
> tom
>
> On Jan 2, 2010, at 8:22 PM,
> Frank Fisher wrote:
>
> > hi Guys
> > 4 years ago when i was driving my TR3 i don't
> recall the amp-meter bouncing around between positive charge and zero. as
> you will guess it like to do that now. any thoughts?
> > history is:
> > in 600 miles
> > burned out one generator
> > replaced the brand new control box with the old
> one.
> > thanks
> > Frank
> >
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