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Re: [Healeys] Ballast resistor wiring question

To: Michael Oritt <michael.oritt@gmail.com>
Subject: Re: [Healeys] Ballast resistor wiring question
From: Michael Salter <michaelsalter@gmail.com>
Date: Thu, 26 Dec 2019 10:05:52 -0500
Cc: Austin Healey <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAPTa0B53TDm6xcgpDQ51vAGZEeKtehfwYhyh0tbKZ=ZcXT6LgA@mail.gmail.com> <f931f39c-f907-20f4-e735-1a7d1b18e2d5@earthlink.net> <CAPTa0B72rCiFwvH-YCWzmKZEpRdmf1C7MXfc12C6s6qCbYG1Fw@mail.gmail.com>
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After due consideration I've come to realize that there is a problem with
the planed resistor installation.
The original Lucas "thermal " type flasher unit is rated at 42 watts.
The resistors that are shown on the Moss web site are 50 watt.
If you were to install such a resistor, to simulate the load, on each turn
signal bulb the load through the flasher unit, when the signals were
selected, would be 100 watts PLUS whatever the LED lamps drew. This would
result in 8.3 amps flowing through the flasher unit  ... probably enough to
burn it out!!
I would think that a far better solution would be to install two 50 watt
resistors.
On the turn signal relay (that mysterious metal box mounted on the left
front inner fender). One 50 watt resistor would be installed between
terminal 2 and ground and the other between terminal 6 and ground.
Those original flasher units are becoming VERY hard to find so it would be
a pity to cook any more of them.

M


On Tue, Dec 24, 2019, 10:30 AM Michael Oritt, <michael.oritt@gmail.com>
wrote:

> Thanks all.  What Kees says flies in the face of both Moss's (slightly
> inarticulate) instructions as well as the consensus of the group.
> I will install ONE resistor in the flasher lead of each lamp, two--not
> four--resistors total.
>
> Best--Michael Oritt
>
> On Tue, Dec 24, 2019 at 10:22 AM Bob Haskell <rchaskell@earthlink.net>
> wrote:
>
>> Per the Moss video, you're creating a new ground path to prevent all
>> lights blinking when you turn on the left or right turn signal.  So
>> connect the ballast resistors to the turn signal circuit.
>>
>> Cheers,
>>
>> Bob Haskell
>> Austin Healey 3000 BN7/BT7 registrar
>>
>> On 12/24/19 9:22 AM, Michael Oritt wrote:
>> > I purchased two of the Moss 170-941 red LED bulbs to use as
>> > tail-lights/brake-lights to replace the standard 1157 dual filament
>> > bulbs on my 100 (I have the reflector pods electrified and wired for
>> > turn signals).  In addition to the bulbs I also purchased, at Moss's
>> > suggestion, two 170-965 Load Resistors.
>> >
>> > The instructions for installation of the resistors simply talk about
>> the
>> > resistor's being installed between the power and ground leads to each
>> > fixture but it does not specify which power lead.  My question is:  do
>> I
>> > connect the ground lead to the tail light power lead or the turn signal
>> > power lead or does it matter?  I cannot envision connecting it to both
>> > as that would defeat their separate function.
>> >
>> > TIA....Michael Oritt
>> >
>> > _______________________________________________
>> > Support Team.Net http://www.team.net/donate.html
>> > Suggested annual donation  $12.75
>> >
>> > Archive: http://www.team.net/pipermail/healeys
>> http://autox.team.net/archive
>> >
>> > Healeys@autox.team.net
>> > http://autox.team.net/mailman/listinfo/healeys
>> >
>> > Unsubscribe/Manage:
>> http://autox.team.net/mailman/options/healeys/rchaskell@earthlink.net
>> >
>>
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>

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"auto"><div>After due consideration I&#39;ve come to realize tha=
t there is a problem with the planed resistor installation.=C2=A0<div dir=
=3D"auto">The original Lucas &quot;thermal &quot; type flasher unit is rate=
d at 42 watts.=C2=A0</div><div dir=3D"auto">The resistors that are shown on=
 the Moss web site are 50 watt.=C2=A0</div><div dir=3D"auto">If you were to=
 install such a resistor, to simulate the load, on each turn signal bulb th=
e load through the flasher unit, when the signals were selected, would be 1=
00 watts PLUS whatever the LED lamps drew. This would result in 8.3 amps fl=
owing through the flasher unit=C2=A0 ... probably enough to burn it out!!</=
div><div dir=3D"auto">I would think that a far better solution would be to =
install two 50 watt resistors.</div><div dir=3D"auto">On the turn signal re=
lay (that mysterious metal box mounted on the left front inner fender). One=
 50 watt resistor would be installed between terminal 2 and ground and the =
other between terminal 6 and ground.</div><div dir=3D"auto">Those original =
flasher units are becoming VERY hard to find so it would be a pity to cook =
any more of them.</div><div dir=3D"auto"><br></div><div dir=3D"auto">M</div=
><br><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">O=
n Tue, Dec 24, 2019, 10:30 AM Michael Oritt, &lt;<a href=3D"mailto:michael.=
oritt@gmail.com" rel=3D"noreferrer noreferrer" target=3D"_blank">michael.or=
itt@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div d=
ir=3D"ltr"><div class=3D"gmail_default" style=3D"color:#3333ff">Thanks all.=
=C2=A0 What Kees says flies=C2=A0in the face of both Moss&#39;s (slightly i=
narticulate) instructions as well=C2=A0as the consensus of the group.=C2=A0=
 I=C2=A0will=C2=A0install ONE resistor in the flasher lead of each lamp, tw=
o--not four--resistors total.</div><div class=3D"gmail_default" style=3D"co=
lor:#3333ff"><br></div><div class=3D"gmail_default" style=3D"color:#3333ff"=
>Best--Michael Oritt</div></div><br><div class=3D"gmail_quote"><div dir=3D"=
ltr" class=3D"gmail_attr">On Tue, Dec 24, 2019 at 10:22 AM Bob Haskell &lt;=
<a href=3D"mailto:rchaskell@earthlink.net"; rel=3D"noreferrer noreferrer nor=
eferrer" target=3D"_blank">rchaskell@earthlink.net</a>&gt; wrote:<br></div>=
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left:1px solid rgb(204,204,204);padding-left:1ex">Per the Moss video, you&#=
39;re creating a new ground path to prevent all <br>
lights blinking when you turn on the left or right turn signal.=C2=A0 So <b=
r>
connect the ballast resistors to the turn signal circuit.<br>
<br>
Cheers,<br>
<br>
Bob Haskell<br>
Austin Healey 3000 BN7/BT7 registrar<br>
<br>
On 12/24/19 9:22 AM, Michael Oritt wrote:<br>
&gt; I purchased two of the Moss 170-941 red LED bulbs to use as <br>
&gt; tail-lights/brake-lights to replace the standard 1157 dual filament <b=
r>
&gt; bulbs on my 100 (I have the reflector pods electrified and wired for <=
br>
&gt; turn signals).=C2=A0 In addition to the bulbs I also purchased, at Mos=
s&#39;s <br>
&gt; suggestion, two 170-965 Load Resistors.<br>
&gt; <br>
&gt; The instructions for installation of the resistors simply talk about t=
he <br>
&gt; resistor&#39;s being installed between the power and ground leads to e=
ach <br>
&gt; fixture but it does not specify which power lead.=C2=A0 My question is=
: =C2=A0do I <br>
&gt; connect the ground lead to the tail light power lead or the turn signa=
l <br>
&gt; power lead or does it matter?=C2=A0 I cannot envision connecting it to=
 both <br>
&gt; as that would defeat their separate function.<br>
&gt; <br>
&gt; TIA....Michael Oritt<br>
&gt; <br>
&gt; _______________________________________________<br>
&gt; Support Team.Net <a href=3D"http://www.team.net/donate.html"; rel=3D"no=
referrer noreferrer noreferrer noreferrer" target=3D"_blank">http://www.tea=
m.net/donate.html</a><br>
&gt; Suggested annual donation=C2=A0 $12.75<br>
&gt; <br>
&gt; Archive: <a href=3D"http://www.team.net/pipermail/healeys"; rel=3D"nore=
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 noreferrer" target=3D"_blank">Healeys@autox.team.net</a><br>
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&gt; <br>
&gt; Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/options/h=
ealeys/rchaskell@earthlink.net" rel=3D"noreferrer noreferrer noreferrer nor=
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haskell@earthlink.net</a><br>
&gt; <br>
</blockquote></div>
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