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Re: [TR] Installing Pertronix on a 74 TR6

To: 'William Smith' <smithw1@optonline.net>, Alex & Janet Thomson <aljlthomson@charter.net>
Subject: Re: [TR] Installing Pertronix on a 74 TR6
From: robert rudolphi <robertrudolphi@yahoo.com>
Date: Sat, 15 Aug 2020 21:54:27 +0000 (UTC)
Cc: 'Triumph List' <triumphs@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
References: <8A.7C.29911.38E383F5@mta4.srv.hcvlny.cv.net> <004e01d67349$25c1e800$7145b800$@charter.net> x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.125 Safari/537.36
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 Thanks Alex, very helpful
    On Saturday, August 15, 2020, 05:15:06 PM EDT, Alex & Janet Thomson <al=
jlthomson@charter.net> wrote: =20
=20
=20
I=E2=80=99m not sure where I am jumping in on this conversation but from ou=
r experience on a =E2=80=9973 TR6, make sure to feed the Pertronix unit wit=
h a full 12 volts, not the reduced voltage that you get at the coil. Yes, I=
 also believe that there is part of the feed wire to the coil that acts as =
the ballast resistor. Feeding the unit =E2=80=9Cin front=E2=80=9D of the ba=
llast resistor would mean between the resistor and the ignition switch. Whe=
n you feed the unit the reduced voltage via the resistor, it will start to =
cause ignition misses after 500 miles or less. Then, when you are on your w=
ay to the CT Antique Machinery Show, the car will die completely, requiring=
 you to walk home and tow the car home with your 1952 John Deere 50 tractor=
. I=E2=80=99m glad that was only a mile and a half walk. By the way, the fi=
rst time it happened, Pertronix was very helpful, providing a replacement u=
nit under warranty with an analysis of deficient input voltage on the old u=
nit.

 =C2=A0

Alex Thomson

 =C2=A0

From: Triumphs [mailto:triumphs-bounces@autox.team.net] On Behalf Of Willia=
m Smith
Sent: Saturday, August 15, 2020 3:59 PM
To: robertrudolphi@yahoo.com
Cc: Triumph List
Subject: [TR] Installing Pertronix on a 74 TR6

 =C2=A0

 =C2=A0

Robert, I=C2=A0 have a 72 TR6 with a Pertronix but 72's do not have ballast=
 resistors.=C2=A0 Therefore, I'm not positive of what I'm about to say, but=
 it is my recollection that the ballast resistors in the later models are a=
ctually in the wire (positive,=C2=A0 I believe) going to the coil.=C2=A0 I'=
m not sure what=C2=A0 they mean by "in front" of the ballast resistor.....w=
hether that means between the ignition switch and the resistor, or between =
the resistor and the coil

 =C2=A0

Bill Smith

'72 TR6=C2=A0

'80 TR7=C2=A0

 =C2=A0

 =C2=A0

Sent from my Verizon, Samsung Galaxy smartphone

 =C2=A0
 =20
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<html><head></head><body><div class=3D"ydpc64cc497yahoo-style-wrap" style=
=3D"font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px=
;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">Thanks Alex, very helpful</d=
iv><div><br></div>
       =20
        </div><div id=3D"ydp80d568dfyahoo_quoted_7688939284" class=3D"ydp80=
d568dfyahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Saturday, August 15, 2020, 05:15:06 PM EDT, Alex &am=
p; Janet Thomson &lt;aljlthomson@charter.net&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div id=3D"ydp80d568dfyiv2374247202"><div><div class=
=3D"ydp80d568dfyiv2374247202WordSection1"><p class=3D"ydp80d568dfyiv2374247=
202MsoNormal"><span style=3D"color:#1F497D;">I=E2=80=99m not sure where I a=
m jumping in on this conversation but from our experience on a =E2=80=9973 =
TR6, make sure to feed the Pertronix unit with a full 12 volts, not the red=
uced voltage that you get at the coil. Yes, I also believe that there is pa=
rt of the feed wire to the coil that acts as the ballast resistor. Feeding =
the unit =E2=80=9Cin front=E2=80=9D of the ballast resistor would mean betw=
een the resistor and the ignition switch. When you feed the unit the reduce=
d voltage via the resistor, it will start to cause ignition misses after 50=
0 miles or less. Then, when you are on your way to the CT Antique Machinery=
 Show, the car will die completely, requiring you to walk home and tow the =
car home with your 1952 John Deere 50 tractor. I=E2=80=99m glad that was on=
ly a mile and a half walk. By the way, the first time it happened, Pertroni=
x was very helpful, providing a replacement unit under warranty with an ana=
lysis of deficient input voltage on the old unit.</span></p><p class=3D"ydp=
80d568dfyiv2374247202MsoNormal"><span style=3D"color:#1F497D;"> &nbsp;</spa=
n></p><p class=3D"ydp80d568dfyiv2374247202MsoNormal"><span style=3D"color:#=
1F497D;">Alex Thomson</span></p><p class=3D"ydp80d568dfyiv2374247202MsoNorm=
al"><span style=3D"color:#1F497D;"> &nbsp;</span></p><div class=3D"ydp80d56=
8dfyiv2374247202yqt1240537599" id=3D"ydp80d568dfyiv2374247202yqt72192"><div=
><div style=3D"border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in=
 0in 0in;"><p class=3D"ydp80d568dfyiv2374247202MsoNormal"><b><span style=3D=
"font-size:10.0pt;">From:</span></b><span style=3D"font-size:10.0pt;"> Triu=
mphs [mailto:triumphs-bounces@autox.team.net] <b>On Behalf Of </b>William S=
mith<br clear=3D"none"><b>Sent:</b> Saturday, August 15, 2020 3:59 PM<br cl=
ear=3D"none"><b>To:</b> robertrudolphi@yahoo.com<br clear=3D"none"><b>Cc:</=
b> Triumph List<br clear=3D"none"><b>Subject:</b> [TR] Installing Pertronix=
 on a 74 TR6</span></p></div></div><p class=3D"ydp80d568dfyiv2374247202MsoN=
ormal"> &nbsp;</p><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal"> &nbs=
p;</p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal">Robert, I&n=
bsp; have a 72 TR6 with a Pertronix but 72's do not have ballast resistors.=
&nbsp; Therefore, I'm not positive of what I'm about to say, but it is my r=
ecollection that the ballast resistors in the later models are actually in =
the wire (positive,&nbsp; I believe) going to the coil.&nbsp; I'm not sure =
what&nbsp; they mean by "in front" of the ballast resistor.....whether that=
 means between the ignition switch and the resistor, or between the resisto=
r and the coil</p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal"=
> &nbsp;</p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal">Bill =
Smith</p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal">'72 TR6&=
nbsp;</p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal">'80 TR7&=
nbsp;</p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal"> &nbsp;<=
/p></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal"> &nbsp;</p></d=
iv><div id=3D"ydp80d568dfyiv2374247202composer_signature"><div><p class=3D"=
ydp80d568dfyiv2374247202MsoNormal"><span style=3D"font-size:10.0pt;color:#5=
75757;">Sent from my Verizon, Samsung Galaxy smartphone</span></p></div></d=
iv></div><div><p class=3D"ydp80d568dfyiv2374247202MsoNormal"> &nbsp;</p></d=
iv></div></div></div></div>
            </div>
        </div></body></html>
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