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Ray,
No problem selling them, however shipping from NL is another matter. At
least $14 without T&T, with T&T $36. Better try ebay, e.g.:
www.ebay.co.uk/itm/10PC-1-5KE18CA-DO-201AD-bidirectional-TVS-diode-transient-suppression/153876305746?hash=item23d3be1752:g:BIcAAOSwKAJeeuw0
Just over a$1 for 10 incl. shipping!!.
Kees Oudesluijs
Op 20-10-2020 om 19:48 schreef Ray Juncal:
> Thanks guys for the great info, the power of the list is amazing.
> Kees, you want to sell me three of those transils? Saves me from
> poking around on ebay.
> Thanks again
> Ray
>
>
> On Tuesday, October 20, 2020, 9:17:57 AM PDT, Kees Oudesluijs via
> Healeys <healeys@autox.team.net> wrote:
>
>
> Bob,
>
> Did you fit the transil in the same way the diode was fitted? If so
> this is not correct. It should be fitted as the capacitor is fitted,
> between the small screw that holds the points blade and one of the
> bigger screws that fix the Bakelite bridge to the coil body. You can
> fit the transil instead of the capacitor or parallel to the capacitor.
> A diode is fitted in series with the points, a transil or capacitor is
> fitted over the points.
>
> Kees Oudesluijs
>
> Op 20-10-2020 om 17:18 schreef Bob Spidell:
> The late Dave DuBois, who designed the transistor-switch fix, quit
> doing the conversions when he found the reduced voltage cross the
> points allowed them to oxidize. I tried the transil fix, but didn't
> get much more longevity than a stock points setup with a diode; I do
> know some have had better luck with them.
>
> I have a points/diode pump in my BN2 that works well, but I only have
> a few hundred miles in the car. I've lost track of what I've got in my
> BJ8.
>
> Bob
>
> On 10/19/2020 11:31 PM, Kees Oudesluijs via Healeys wrote:
>
> When rebuilding SU electrical fuel pumps I ad a transil (e.g.. 1.5
> KE18CA) over the points, parallel or in stead of the capacitor if
> fitted. This reduces the max voltage across the points to 18V instead
> of several hundreds when the contact is broken and the points spark.
>
> It is also important to clean and polish the points using flower paper
> (2-3000 grid), also when new!!
>
> A transil is more or less a bi-directional Zener diode. They cost next
> to nothing. I buy them in bulk and pay about $0,15 but when buying
> only one expect to pay between $1 and $5. Ebay is an excellent way to
> source transils (mainly from China).
>
> A transistor circuit similar to those used in early transistorised
> ignition systems does a similar job by limiting the current through
> the points
>
> Kees Oudesluijs
>
>
>
> Op 20-10-2020 om 07:50 schreef Ray Juncal via Healeys:
> I'm rebuilding a couple of early S. U. fuel pumps for my 100. In
> checking my reference files I came across an article from the MG club
> about adding a transistor circuit to reduce the amps across the
> points. That would keep the points from burning and extend the life of
> the points. Has anyone on the list tried this? The author of the
> article claims he has 20,000 miles on the conversion and new looking
> contact points. Thoughts, comments, suggestions.....
> Regards
> Ray
>
>
>
>
>
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<p>Ray,</p>
<p>No problem selling them, however shipping from NL is another
matter. At least $14 without T&T, with T&T $36. Better try
ebay, e.g.: <br>
</p>
<p><a class="moz-txt-link-abbreviated"
href="http://www.ebay.co.uk/itm/10PC-1-5KE18CA-DO-201AD-bidirectional-TVS-diode-transient-suppression/153876305746?hash=item23d3be1752:g:BIcAAOSwKAJeeuw0";>www.ebay.co.uk/itm/10PC-1-5KE18CA-DO-201AD-bidirectional-TVS-diode-transient-suppression/153876305746?hash=item23d3be1752:g:BIcAAOSwKAJeeuw0</a></p>
<p>Just over a$1 for 10 incl. shipping!!.</p>
<p>Kees Oudesluijs</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">Op 20-10-2020 om 19:48 schreef Ray
Juncal:<br>
</div>
<blockquote type="cite"
cite="mid:115899699.1598272.1603216129272@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div class="ydpfb364944yahoo-style-wrap"
style="font-family:Helvetica Neue, Helvetica, Arial,
sans-serif;font-size:16px;">
<div dir="ltr" data-setdir="false">Thanks guys for the great
info, the power of the list is amazing. Kees, you want to sell
me three of those transils? Saves me from poking around on
ebay.</div>
<div dir="ltr" data-setdir="false">Thanks again</div>
<div dir="ltr" data-setdir="false">Ray<br>
</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div><br>
</div>
</div>
<div id="ydp58ac49f2yahoo_quoted_3754717868"
class="ydp58ac49f2yahoo_quoted">
<div style="font-family:'Helvetica Neue', Helvetica, Arial,
sans-serif;font-size:13px;color:#26282a;">
<div> On Tuesday, October 20, 2020, 9:17:57 AM PDT, Kees
Oudesluijs via Healeys <a class="moz-txt-link-rfc2396E"
href="mailto:healeys@autox.team.net";><healeys@autox.team.net></a> wrote:
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div id="ydp58ac49f2yiv7447572965">
<div>
<p>Bob, <br clear="none">
</p>
<p>Did you fit the transil in the same way the diode was
fitted? If so this is not correct. It should be fitted
as the capacitor is fitted, between the small screw
that holds the points blade and one of the bigger
screws that fix the Bakelite bridge to the coil body.
You can fit the transil instead of the capacitor or
parallel to the capacitor. A diode is fitted in series
with the points, a transil or capacitor is fitted over
the points.<br clear="none">
</p>
<p>Kees Oudesluijs<br clear="none">
</p>
<div class="ydp58ac49f2yiv7447572965yqt9890308802"
id="ydp58ac49f2yiv7447572965yqtfd62082">
<div class="ydp58ac49f2yiv7447572965moz-cite-prefix">Op
20-10-2020 om 17:18 schreef Bob Spidell:<br
clear="none">
</div>
<blockquote type="cite"> </blockquote>
</div>
</div>
<div class="ydp58ac49f2yiv7447572965yqt9890308802"
id="ydp58ac49f2yiv7447572965yqtfd62469">
<div> The late Dave DuBois, who designed the
transistor-switch fix, quit doing the conversions when
he found the reduced voltage cross the points allowed
them to oxidize. I tried the transil fix, but didn't
get much more longevity than a stock points setup with
a diode; I do know some have had better luck with
them.<br clear="none">
<br clear="none">
I have a points/diode pump in my BN2 that works well,
but I only have a few hundred miles in the car. I've
lost track of what I've got in my BJ8.<br clear="none">
<br clear="none">
Bob<br clear="none">
<br clear="none">
<div class="ydp58ac49f2yiv7447572965moz-cite-prefix">On
10/19/2020 11:31 PM, Kees Oudesluijs via Healeys
wrote:<br clear="none">
</div>
<blockquote type="cite"> </blockquote>
</div>
<div>
<p>When rebuilding SU electrical fuel pumps I ad a
transil (e.g.. 1.5 KE18CA) over the points, parallel
or in stead of the capacitor if fitted. This reduces
the max voltage across the points to 18V instead of
several hundreds when the contact is broken and the
points spark. <br clear="none">
</p>
<p>It is also important to clean and polish the points
using flower paper (2-3000 grid), also when new!!</p>
<p>A transil is more or less a bi-directional Zener
diode. They cost next to nothing. I buy them in bulk
and pay about $0,15 but when buying only one expectÂ
to pay between $1 and $5. Ebay is an excellent way
to source transils (mainly from China).</p>
<p>A transistor circuit similar to those used in early
transistorised ignition systems does a similar job
by limiting the current through the points<br
clear="none">
</p>
<p>Kees Oudesluijs</p>
<p><br clear="none">
</p>
<p><br clear="none">
</p>
<div class="ydp58ac49f2yiv7447572965moz-cite-prefix">Op
20-10-2020 om 07:50 schreef Ray Juncal via Healeys:<br
clear="none">
</div>
<blockquote type="cite"> </blockquote>
</div>
</div>
<div>
<div class="ydp58ac49f2yiv7447572965yqt9890308802"
id="ydp58ac49f2yiv7447572965yqtfd48235">
<div class="ydp58ac49f2yiv7447572965yahoo-style-wrap"
style="font-family:Helvetica Neue, Helvetica, Arial,
sans-serif;font-size:16px;">
<div dir="ltr">I'm rebuilding a couple of early S.
U. fuel pumps for my 100. In checking my reference
files I came across an article from the MG club
about adding a transistor circuit to reduce the
amps across the points. That would keep the points
from burning and extend the life of the points.
Has anyone on the list tried this? The author of
the article claims he has 20,000 miles on the
conversion and new looking contact points.
Thoughts, comments, suggestions.....<br
clear="none">
</div>
<div dir="ltr">Regards</div>
<div dir="ltr">Ray<br clear="none">
</div>
</div>
<br clear="none">
<br clear="none">
<br clear="none">
<br clear="none">
<br clear="none">
<fieldset
class="ydp58ac49f2yiv7447572965mimeAttachmentHeader"></fieldset>
</div>
<pre class="ydp58ac49f2yiv7447572965moz-quote-pre"><div
class="ydp58ac49f2yiv7447572965yqt9890308802"
id="ydp58ac49f2yiv7447572965yqtfd28340">_______________________________________________
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<div class="ydp58ac49f2yiv7447572965yqt9890308802"
id="ydp58ac49f2yiv7447572965yqtfd87113"> </div>
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