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Why wouldn't it work on positive ground car? Just hook red to positive like the
block and black to negative like the solenoid lug from the battery.
> On March 12, 2019 at 11:39 AM David Nock <healeydoc@gmail.com
> mailto:healeydoc@gmail.com > wrote:
>
>
> If your car is Positive ground the timing light will not work. If you are
> positive ground you will need to use another battery to power the timing
> light.
>
>
>
>
> David Nock
> healeydoc@sbcglobal.net mailto:healeydoc@sbcglobal.net
> 209 948 8767
> www.britishcarspecialists.com
>
> Help us have our Founder Norman Nock inducteed into the
> British Sportscar Hall of Fame, You can vote for your favorites
> by visiting the site at.
> www.britishsportscarhall.org
> -----Original Message-----
> From: sentenac.rw@gmail.com mailto:sentenac.rw@gmail.com
> Sent: Monday, March 11, 2019 10:13 PM
> To: Michael Oritt
> Cc: Healeys
> Subject: Re: [Healeys] *** SPAM ***Re: Timing light query (OOPS)
>
> The problems I was mentioning only happen if you use the car's
> batteries for a supply to the light. If you use an independent
> battery and don't somehow link one side of the supply battery to the
> car's chassis you shouldn't have a problem.
> -R
>
> On Mon, 11 Mar 2019 22:07:19 -0700, you wrote:
>
> >Polarity also matters in a different way if your timing light has a
> >metal case and one of the power leads is grounded to the case, as
> >mine is. If you use a 'regular' timing light designed for negative
> >grounds in a Healey with a positive ground system, and if you then
> >touch the case to the chassis or engine you will get a lot of sparks
> >at a minimum, and maybe do some welding where you had not intended to.
> >
> >-Roland
> >BN1 #724
> >
> >On Mon, 11 Mar 2019 21:32:53 -0400, Michael Oritt wrote:
> >
> >>Simon--
> >>
> >>The 12VDC lead does not need to go to the battery, merely a source of
> >>power
> >>whether or not it is part of your car's electrical system. I don't know
> >>how your engine is configured but you can take power off of the starter
> >>solenoid, coil hot lead, etc. etc. Polarity does matter, however.
> >>
> >>Best--Michael Oritt
> >>
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<!DOCTYPE html>
<html><head>
<meta charset=3D"UTF-8">
</head><body>Why wouldn't it work on positive ground car? Just hook re=
d to positive like the block and black to negative like the solenoid lug fr=
om the battery.<br><blockquote type=3D"cite">On March 12, 2019 at 11:39 AM =
David Nock <<a href=3D"mailto:healeydoc@gmail.com";>healeydoc@gmail.com<=
/a>> wrote:<br><br><br>If your car is Positive ground the timing light =
will not work. If you are <br>positive ground you will need to use another =
battery to power the timing <br>light.<br><br><br><br><br>David Nock<br><a =
href=3D"mailto:healeydoc@sbcglobal.net";>healeydoc@sbcglobal.net</a><br>209 =
948 8767<br>www.britishcarspecialists.com<br><br>Help us have our Founder N=
orman Nock inducteed into the<br>British Sportscar Hall of Fame, You can vo=
te for your favorites<br>by visiting the site at.<br>www.britishsportscarha=
ll.org<br>-----Original Message----- <br>From: <a href=3D"mailto:sentenac.r=
w@gmail.com">sentenac.rw@gmail.com</a><br>Sent: Monday, March 11, 2019 10:1=
3 PM<br>To: Michael Oritt<br>Cc: Healeys<br>Subject: Re: [Healeys] *** SPAM=
***Re: Timing light query (OOPS)<br><br>The problems I was mentioning only=
happen if you use the car's<br>batteries for a supply to the light. I=
f you use an independent<br>battery and don't somehow link one side of =
the supply battery to the<br>car's chassis you shouldn't have a pro=
blem.<br>-R<br><br>On Mon, 11 Mar 2019 22:07:19 -0700, you wrote:<br><br>&#=
62;Polarity also matters in a different way if your timing light has a<br>&=
#62;metal case and one of the power leads is grounded to the case, as<br>&=
#62;mine is. If you use a 'regular' timing light designed for nega=
tive<br>>grounds in a Healey with a positive ground system, and if you =
then<br>>touch the case to the chassis or engine you will get a lot of =
sparks<br>>at a minimum, and maybe do some welding where you had not in=
tended to.<br>><br>>-Roland<br>>BN1 #724<br>><br>>On Mo=
n, 11 Mar 2019 21:32:53 -0400, Michael Oritt wrote:<br>><br>>>S=
imon--<br>>><br>>>The 12VDC lead does not need to go to the=
battery, merely a source of <br>>>power<br>>>whether or no=
t it is part of your car's electrical system. I don't know<br>>=
;>how your engine is configured but you can take power off of the start=
er<br>>>solenoid, coil hot lead, etc. etc. Polarity does matter, h=
owever.<br>>><br>>>Best--Michael Oritt<br>>><br>___=
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=20
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