[TR] (no subject)

[Brad Kahler]

Alex,

If I remember correctly it was only the later TR6s that had the resistors
installed.  I'm certain mine doesn't have that feature.

I'll know for sure once I start the engine up in a few weeks!

Brad

On Sun, Apr 9, 2023 at 6:40 PM Alex & Janet Thomson <aljlthomson at charter.net>
wrote:

> Don't forget that there may be a resistance wire in the feed circuit to
> the coil which limits voltage and available current. I found out the hard
> way when We had a Pertronix ignition set-up being fed by the coil wire.
> That low voltage starved the Pertronix unit twice before I realized what
> the issue was.
>
> Alex Thomson
>
> -----Original Message-----
> From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of
> Randy and Valerie DeRuiter
> Sent: Sunday, April 9, 2023 5:31 PM
> To: Brad Kahler
> Cc: Triumphs
> Subject: Re: [TR] (no subject)
>
> Brad
>
> I did a similar conversion a few years ago on a TR3 and I’m fairly certain
> that needs to be switched power to the unit.  I don’t have a wiring diagram
> handy but you may be ok adding the small brown wire to the same terminal as
> the large brown wire - and run a separate connection for the switch power.
> The positive coil terminal could be a convenient place.
>
> Randy
>
> Sent from my iPad
>
> > On Apr 9, 2023, at 1:19 PM, Brad Kahler <bkahler1 at gmail.com> wrote:
> >
> > 
> > I'm trying to troubleshoot a problem with the new wiring in my TR6.
> Here's the configuration:
> >
> > 1) Mini Denso 70 amp alternator 3-wire
> > 2) New wiring harness from TRF
> > 3) Positive cable connected to battery
> > 4) Between negative cable and ground I have a fuse inserted with a small
> amp meter (this way if a short occurs while testing the fuse will blow
> before damaging anything and I can read the current draw if/until the fuse
> blows)
> > 5) White wire at distributor disconnected
> > 6) No dash instruments connected
> > 7) Rear harness not installed yet
> > 8) TBI power connector not connected
> > 9) Harness in engine compartment mostly connected
> > 10) Alternator connected
> > 11) Fuse between brown and purple wires is NOT in place
> >
> >
> > When I connect the ground I immediately start showing a 4 amp draw.
> When I disconnect the small brown wire on the alternator the current draw
> disappears.
> >
> > The wires area connected as follows.  The brown/yellow wire goes to the
> (1) connector on the alternator for dash light.
> >
> > The small solid brown wire goes to the (2) connector on the alternator
> called "switched live" from the battery.  Currently the small brown wire is
> always live from the battery per Triumph design.  If the "switched live'
> note means the brown wire is supposed to be cold when the ignition switch
> is off then that is likely the problem.
> >
> > All of this tells me the brown wire needs to be from the ignition switch
> on position and only live when the ignition is on.  I don't have any way to
> really test my theory because I haven't got the engine running yet and
> won't for a few weeks.  I'd like to resolve this before I go much further
> with the wiring install.
> >
> > Thanks,
> >
> > Brad
> >
> >
> >
> >
> > ** triumphs at autox.team.net **
> >
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