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Hello Michael
And to obtain a wiring harness for a real Healey would mean that it has to =
be specially made.
Thanks
Patrick Quinn
From: Michael Salter [mailto:michaelsalter@gmail.com]
Sent: Saturday, 25 May 2019 9:09 PM
To: Patrick and Caroline Quinn
Cc: healeys@autox.team.net
Subject: Re: [Healeys] Ignition Circuit
Hi Patrick, I would agree that using the fused connection on the "ignition=
switched" side of the fuse block as the source would be a good idea. The i=
gnition switch is not fuse protected so by using that as a source you do ru=
n a risk of "letting the smoke out" should a short to ground occur in your =
fan system.
You may find that the electrical demands of your fan are more than the fuse=
s can handle as the system was not designed with heavy continuous loads in =
mind.
To circumvent that issue you could use the unfused side of the "ignition sw=
itched" section of the fuse block as the source and install an "in line" fu=
se to protect the fan circuit.
I cannot overemphasize the importance of protecting the fan circuit with a =
fuse, it very easy to damage a wiring harness and replacing one is a major =
undertaking.
M
On Sat, May 25, 2019, 3:17 AM Patrick & Caroline Quinn, <p_cquinn@tpg.com.a=
u> wrote:
Hello
Seeking advice from those who understand automotive electrics.
My real Healey has an electric fan in front of the radiator that was contro=
lled by a thermo switch. Worked reasonably well, but drew quite a bit of po=
wer but nothing concerning. When on, the amp gauge needle would always hove=
r in the negative.
Personally I don=E2=80=99t like thermo switches, so the fan has now been wi=
red direct and operated by a discreet switch under the dash. Power is taken=
directly from the outgoing side of the ignition switch so that the fan onl=
y comes on when the ignition is on along with the specific switch.
Works well, but now when the fan goes on the ignition light is illuminated =
and will not go out.
Does that mean that the ignition circuit doesn=E2=80=99t like what I have d=
one? I am thinking of taking the power direct from the incoming side of the=
ignition switch so that the fan is powered direct from the battery. Would =
that work?
Any electrical whizzes out there?
Thanks
Patrick Quinn
Blue Mountains, Australia
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-AU link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt'>Hello Michael<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-size:11.0pt'>And to obtain a =
wiring harness for a real Healey would mean that it has to be specially =
made.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt'>Thanks<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-size:11.0pt'>Patrick =
Quinn<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt'><o:p> </o:p></span></p><p =
class=3DMsoNormal><b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Michael =
Salter [mailto:michaelsalter@gmail.com] <br><b>Sent:</b> Saturday, 25 =
May 2019 9:09 PM<br><b>To:</b> Patrick and Caroline Quinn<br><b>Cc:</b> =
healeys@autox.team.net<br><b>Subject:</b> Re: [Healeys] Ignition =
Circuit<o:p></o:p></span></p><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>Hi =
Patrick, I would agree that using the fused connection on the =
"ignition switched" side of the fuse block as the source would =
be a good idea. The ignition switch is not fuse protected so by =
using that as a source you do run a risk of "letting the smoke =
out" should a short to ground occur in your fan =
system. <o:p></o:p></p><div><p class=3DMsoNormal>You may find that =
the electrical demands of your fan are more than the fuses can handle as =
the system was not designed with heavy continuous loads in =
mind. <o:p></o:p></p></div><div><p class=3DMsoNormal>To circumvent =
that issue you could use the unfused side of the "<span =
style=3D'font-family:"Arial","sans-serif"'>ignition switched" =
section of the fuse block as the source and install an "in =
line" fuse to protect the fan =
circuit. </span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><span style=3D'font-family:"Arial","sans-serif"'>I =
cannot overemphasize the importance of protecting the fan circuit with a =
fuse, it very easy to damage a wiring harness and replacing one is a =
major undertaking. </span><o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Arial","sans-serif"'>M</span><o:p></o:p></p></div><=
/div><p class=3DMsoNormal><o:p> </o:p></p><div><div><p =
class=3DMsoNormal>On Sat, May 25, 2019, 3:17 AM Patrick & Caroline =
Quinn, <<a href=3D"mailto:p_cquinn@tpg.com.au"; =
target=3D"_blank">p_cquinn@tpg.com.au</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm =
6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hello<o:p></=
o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Seeking =
advice from those who understand automotive electrics.<o:p></o:p></p><p =
class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>My real =
Healey has an electric fan in front of the radiator that was controlled =
by a thermo switch. Worked reasonably well, but drew quite a bit of =
power but nothing concerning. When on, the amp gauge needle would always =
hover in the negative. <o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Personally =
I don=E2=80=99t like thermo switches, so the fan has now been wired =
direct and operated by a discreet switch under the dash. Power is taken =
directly from the outgoing side of the ignition switch so that the fan =
only comes on when the ignition is on along with the specific =
switch.<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Works well, =
but now when the fan goes on the ignition light is illuminated and will =
not go out.<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Does that =
mean that the ignition circuit doesn=E2=80=99t like what I have done? I =
am thinking of taking the power direct from the incoming side of the =
ignition switch so that the fan is powered direct from the battery. =
Would that work?<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Any =
electrical whizzes out there?<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks<o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p><=
/o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Patrick =
Quinn<o:p></o:p></p><p class=3DMsoNormal =
style=3D'mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Blue =
Mountains, Australia <o:p></o:p></p></div><div =
id=3D"m_8615921404074116746m_522225868468857056DAB4FAD8-2DD7-40BB-A1B8-4E=
2AA1F9FDF2"><p class=3DMsoNormal><o:p> </o:p></p><table =
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