[TR] 1972 TR6

[Dean Tetterton]

If you have Dan Masters book on Triumph electrical maintenance check the
section on turn signals and hazard circuits.
Also the 72 circuit is different from any other. They all are very
dependent on good grounds . Especially on the rear TR6
bulbs that don't ground very well. They also depend on the correct wattage
of the bulbs especially the indicator bulb in the
speedometer. They all allow the flasher to work correctly and at the
correct speed. It is the load on the flasher that gets it to
work correctly. A missing ground at the rear will cause the other side to
light when not wanted. A burnt out indicator bulb
in the speedometer will also cause strange happenings.
The hazard switch on the 72 is different from any other.
Moss numbers:
68-71   635-600
72         635-610
73-76   635-620

   Dean Tetterton


On Sat, May 10, 2025 at 12:39 PM dave northrup <dave at ranteer.com> wrote:

> I will try incandescents,  but I'm not sure why i need "ballasts."  The
> flasher unit, and all bulbs are LED.  And, btw, the trafficator bulb in the
> speedo has not worked for years,  even when the blinkers worked properly
>
>
> -------- Original message --------
> From: Peter Arakelian <peterara at msn.com>
> Date: 5/10/25 11:14 AM (GMT-06:00)
> To: dave northrup <dave at ranteer.com>, DAVID MASSEY <dave1massey at cs.com>,
> triumphs at autox.team.net
> Subject: Re: [TR] 1972 TR6
>
> Do you have ballast in the turn signal circuit?  Right and left sides are
> connected by the indictor light in the speedo.  If not enough resistance in
> the circuit, current will bleed through to the other side causing odd
> combinations of lighting.  Either get ballasts or as a test, replace the
> front Leds with incandescent.  They will provide enough resistance to
> correct for the cross-bleed.  In mine I just have Leds in the rear, so it
> works for me.
>
> ------------------------------
> *From:* Triumphs on behalf of dave northrup
> *Sent:* Saturday, May 10, 2025 5:35 AM
> *To:* DAVID MASSEY; triumphs at autox.team.net
> *Subject:* Re: [TR] 1972 TR6
>
> No flash.  Just solid light,  same side either up or down
>
>
> -------- Original message --------
> From: DAVID MASSEY <dave1massey at cs.com>
> Date: 5/10/25 6:32 AM (GMT-06:00)
> To: triumphs at autox.team.net, dave northrup <dave at ranteer.com>
> Subject: Re: [TR] 1972 TR6
>
> <<when i turn on the right blinker, the left front and rear blinker
> lights just stay on.  when i turn on the left blinker, the left front and
> rear blinker lights just stay on.>>
> Is this what you meant to say?  Do the left lights flash when the switch
> is in either direction?  If so, double check the turn signal switch wiring
> and make sure the GW, GR and LG/N wires are connected correctly.
>
> Dave
>
>
>
>
> On Friday, May 9, 2025 at 03:25:23 PM CDT, dave northrup <dave at ranteer.com>
> wrote:
>
>
> first - the flasher switch went bad years ago so it has been bypassed.
>
>
>
> the blinkers were working previously.  the blinker module was bad and i
> replaced it.
>
>
>
> i have tested the new blinker module - it is LED as are most of the lights
> on the car - it works.  If I go from the module to the battery ground with
> a test light it blinks
>
>
>
> the blinker switch, according to my continuity tester, works.
>
>
>
> when i turn on the right blinker, the left front and rear blinker lights
> just stay on.  when i turn on the left blinker, the left front and rear
> blinker lights just stay on.
>
>
>
> not sure where to go from here.  am looking for direction.
> ** triumphs at autox.team.net **
>
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