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Not trying to reinvent the wheel, David, just get a fuel pump that
lasts. Others have had good service from points pumps like you, but I
haven't. I'm not doing anything unusual; if you get them installed and
they don't leak and they run that's about all you can do--there's no
trick or secret to installing them that I know of. Mine just keep
failing, with between a few hundred and up to 15K miles of service (this
over about 140,000 miles I've put on my BJ8).  I will say I have driven
through some serious downpours, so water entry into the switching
compartment could be a problem, but some of the failures didn't get drowned.
The points can be problematic, else SU wouldn't have gone from:
1) no arc suppression
2) capacitor arc suppression
3) diode arc suppression
That is to say, SU wouldn't have gone to the expense and labor of
installing capacitors and diodes if there wasn't some issue with
reliability or longevity. I tried all three, with results as noted.Â
I've installed the out-of-the-box, rebuilt and adjusted them myself,
installed SS switching mechanism, used capacitors, diodes, TVSes,
transistors and installed SU electronic out-of-the box with predictable
results. I do recall your dad either writing or saying that they used
to take the pumps out and service them--cleaning the points and
adjusting the mechanism I presume--at 15K mile service when he worked at
BMC (or was it BL, don't recall), so they aren't typically bulletproof
forever.
Maybe I pissed the SU gods off somehow; though both my sets of SU carbs
have been all but bulletproof, and the basic points-type in my BN2 has
worked for a few hundred miles.
Bob
On 11/28/2018 9:50 AM, healeydoc@gmail.com wrote:
> I do not understand the problem with the SU pump that everyone feels
> that they have to re invent the wheel. I have using the standard SU
> pump with points in my Healey for almost 75000 miles and never had a
> failure.
> We also have been installing the standard SU points pump here at the
> shop on every car we do for over 40 years
> Everything from Healeyâ??s, MGâ??s and Jaguarâ??s and had very few failures.
> David Nock
> 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
>
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<p>Not trying to reinvent the wheel, David, just get a fuel pump
that lasts. Others have had good service from points pumps like
you, but I haven't. I'm not doing anything unusual; if you get
them installed and they don't leak and they run that's about all
you can do--there's no trick or secret to installing them that I
know of. Mine just keep failing, with between a few hundred and
up to 15K miles of service (this over about 140,000 miles I've put
on my BJ8).  I will say I have driven through some serious
downpours, so water entry into the switching compartment could be
a problem, but some of the failures didn't get drowned.<br>
</p>
<p>The points can be problematic, else SU wouldn't have gone from:</p>
<p>1) no arc suppression</p>
<p>2) capacitor arc suppression</p>
<p>3) diode arc suppression</p>
<p>That is to say, SU wouldn't have gone to the expense and labor of
installing capacitors and diodes if there wasn't some issue with
reliability or longevity. I tried all three, with results as
noted. I've installed the out-of-the-box, rebuilt and adjusted
them myself, installed SS switching mechanism, used capacitors,
diodes, TVSes, transistors and installed SU electronic out-of-the
box with predictable results. I do recall your dad either writing
or saying that they used to take the pumps out and service
them--cleaning the points and adjusting the mechanism I
presume--at 15K mile service when he worked at BMC (or was it BL,
don't recall), so they aren't typically bulletproof forever.  </p>
<p>Maybe I pissed the SU gods off somehow; though both my sets of SU
carbs have been all but bulletproof, and the basic points-type in
my BN2 has worked for a few hundred miles.<br>
</p>
<p>Bob</p>
<div class="moz-cite-prefix">On 11/28/2018 9:50 AM,
<a class="moz-txt-link-abbreviated"
href="mailto:healeydoc@gmail.com";>healeydoc@gmail.com</a> wrote:<br>
</div>
<blockquote type="cite"
cite="mid:58A4F9749EEA4A8AB6804D8F2053AF09@DavidNockHP">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR:
#000000">
<div>I do not understand the problem with the SU pump that
everyone feels that they have to re invent the wheel. I have
using the standard SU pump with points in my Healey for
almost 75000 miles and never had a failure. </div>
<div>Â </div>
<div>We also have been installing the standard SU points pump
here at the shop on every car we do for over 40 years </div>
<div>Everything from Healeyâ??s, MGâ??s and Jaguarâ??s and had very
few failures.</div>
<div>Â </div>
<div>Â </div>
<div>Â </div>
<div style="FONT-SIZE: 12pt; FONT-FAMILY: 'Century'; COLOR:
#000000">David Nock<br>
<a class="moz-txt-link-abbreviated"
href="mailto:healeydoc@sbcglobal.net";>healeydoc@sbcglobal.net</a><br>
209 948 8767<br>
<a class="moz-txt-link-abbreviated"
href="http://www.britishcarspecialists.com";>www.britishcarspecialists.com</a><br>
<br>
Help us have our Founder Norman Nock inducteed into the <br>
British Sportscar Hall of Fame, You can vote for your
favorites <br>
by visiting the site at.<br>
<a class="moz-txt-link-abbreviated"
href="http://www.britishsportscarhall.org";>www.britishsportscarhall.org</a><br>
</div>
<br>
</div>
</div>
<pre class="moz-quote-pre" wrap="">
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