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Re: [TR] TR4 wiring ignition

To: triumphs@autox.team.net
Subject: Re: [TR] TR4 wiring ignition
From: Gary O'Hagan <goh62agan@verizon.net>
Date: Sat, 21 Mar 2009 08:56:41 -0400
OK , I thought I could figure this out but I should have known better.  
How hard can it be ?  I have the wiring diagram. Just plug in the wires 
, right?
The problem with connecting" the" Brown/blue wire to the no. 1 terminal 
is that there are three brown/blue wires to choose from. Which two 
attach to the ignition and where does the third brown/blue wire go?
The  wiring diagram I have shows one brown/blue wire coming from the 
lighting switch and one coming from the generator control box. Where 
does the third brown/blue wire come from and what does it connect to? 
I'm going to have to trace all these wires aren't I? And I'm just 
getting started here.  Yikes!  Also how do you know when a good voltage 
stabilizer goes bad? TIA again.
Gary O
On Mar 19, 2009, at 10:43 PM, Randall wrote:

>
>
>> My original ignition switch went
>> missing. The replacement switch from eBay has me confused.
>> The switch has Three terminals, one single prong and Two
>> double prongs.  My question is:
>> which wires go where?  The terminals are numbered 1(single
>> prong),2&3, if that helps. Do I even have the correct switch?
>
> It likely is the wrong switch (my diagram shows 4 terminals) but 
> chances are
> that you can use it if you don't care about the original "accessory"
> position.
>
> First some simple tests.  You'll need some way of checking continuity 
> which
> can be a DMM, ohmmeter, powered test light or even an unpowered light 
> plus
> your car battery.  Turn it off and check that there is no continuity 
> between
> any of the three terminals.  Turn it on and find the two terminals 
> that have
> continuity (most likely 1 & 2).  Then hold it in the start position and
> check for continuity between all the terminals.
>
> If that works, connect the brown/blue wire to terminal 1.  White wire 
> and
> (light) green go to terminal 2 (assuming 1 & 2 had continuity in the 
> 'on'
> position).  White/red goes to terminal 3 (the one that was open in the 
> 'on'
> position).
>
>>  My next question is about the voltage stabilizer, but I'll
>> save that for later (something about  polarity).
>
> The original stabilizer doesn't care about battery polarity, but the 
> solid
> state aftermarket replacements will generally only work if you convert 
> to
> negative ground.  Hopefully they are protected against reverse 
> polarity, but
> I wouldn't want to bet on it <G>
>
> Randall
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