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<html class=3D"apple-mail-supports-explicit-dark-mode"><head><meta http-equi=
v=3D"content-type" content=3D"text/html; charset=3Dutf-8"></head><body dir=3D=
"auto">I believe I have just such a weakened pump. New points, clean and sup=
ple diaphragm, works fine on bench with no fuel, once working with fuel it s=
lows down and stops. I have adjusted the stroke up and down with alway=
s the same result. I always suspected there was something amiss with t=
he coil. How do I test it to confirm that is the issue?<div><br></div><div>&=
nbsp;<br id=3D"lineBreakAtBeginningOfSignature"><div dir=3D"ltr">Sent from m=
y iPad</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Feb 4, 2026, a=
t 7:37=E2=80=AFPM, Michael Salter via Healeys <healeys@autox.team.net>=
wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr"=
>=EF=BB=BF
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf-8">
<div dir=3D"auto" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-s=
ystem, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33,=
33, 33);">
One thing about the SU type of fuel pump which is often misunderstood is wha=
t happens to the pump in the event that the inlet becomes blocked. In that s=
ituation the low pressure on the inlet side of the diaphragm prevents the ar=
mature from rising and the points
from opening. This means that current continues to pass through the c=
oil until sufficient fuel passes into the pump through the blockage to allow=
the diaphragm to rise and the points to open. This causes the coil to overh=
eat and become weakened. </div>
<div dir=3D"auto" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-s=
ystem, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33,=
33, 33);">
If you are trying to rebuild a pump and the "tick, tick" seems rather anemic=
it is likely that a damaged and weakened coil is very the cause.</div>
<div dir=3D"auto" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-s=
ystem, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33,=
33, 33);">
Hopefully this will save people from wasting time in this situation. </=
div>
<div dir=3D"auto" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-s=
ystem, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33,=
33, 33);">
<br>
</div>
<div dir=3D"auto" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-s=
ystem, Roboto, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(33,=
33, 33);">
M</div>
<div id=3D"ms-outlook-mobile-body-separator-line" data-applydefaultfontstyle=
s=3D"true" style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, R=
oboto, Arial, Helvetica, sans-serif; font-size: 12pt;" dir=3D"auto">
<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto=
, Arial, Helvetica, sans-serif; font-size: 12pt;" dir=3D"auto">
<br>
</div>
</div>
<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto=
, Arial, Helvetica, sans-serif; font-size: 12pt;" id=3D"ms-outlook-mobile-si=
gnature" dir=3D"auto">
<div style=3D"font-family: Aptos, Aptos_MSFontService, -apple-system, Roboto=
, Arial, Helvetica, sans-serif; font-size: 12pt;" dir=3D"auto">
<br>
</div>
</div>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" sty=
le=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-bou=
nces@autox.team.net> on behalf of Al Fuller via Healeys <healeys@autox=
.team.net><br>
<b>Sent:</b> Wednesday, February 4, 2026 7:58:09 PM<br>
<b>To:</b> Jean Caron <vintage_roadster_restoration@hotmail.com><br>
<b>Cc:</b> healeys <Healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Fuel pump</font>
<div> </div>
</div>
<div>
<div dir=3D"auto">
<div>Pulling out the pump and checking on the bench might be in order.</div>=
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">As to the weather, it's just getting to be driving season h=
ere in the desert. :) </div>
<div><br>
</div>
<div data-smartmail=3D"gmail_signature">________________<br>
Sent from my phone <br>
Best Regards,<br>
Al Fuller</div>
</div>
<br>
<div class=3D"x_gmail_quote x_gmail_quote_container">
<div dir=3D"ltr" class=3D"x_gmail_attr">On Tue, Feb 3, 2026, 3:23=E2=80=AFPM=
Jean Caron <<a href=3D"mailto:vintage_roadster_restoration@hotmail.com";>=
vintage_roadster_restoration@hotmail.com</a>> wrote:<br>
</div>
<blockquote class=3D"x_gmail_quote" style=3D"margin:0 0 0 .8ex; border-left:=
1px #ccc solid; padding-left:1ex">
<div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-syst=
em,Roboto,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(33,33,33)">
It is February, take it out and rebuild it.</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-syst=
em,Roboto,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(33,33,33)">
<br>
</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-syst=
em,Roboto,Arial,Helvetica,sans-serif; font-size:12pt; color:rgb(33,33,33)">
Jean</div>
<div id=3D"x_m_16339394548668146ms-outlook-mobile-body-separator-line" dir=3D=
"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,A=
rial,Helvetica,sans-serif; font-size:12pt">
<div style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ari=
al,Helvetica,sans-serif; font-size:12pt">
<br>
</div>
</div>
<div id=3D"x_m_16339394548668146ms-outlook-mobile-signature" dir=3D"auto" st=
yle=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helv=
etica,sans-serif; font-size:12pt">
<span style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ar=
ial,Helvetica,sans-serif; font-size:12pt">Sent from my Bell Samsung device o=
ver Canada=E2=80=99s largest network.</span></div>
<hr style=3D"display:inline-block; width:98%">
<div id=3D"x_m_16339394548668146divRplyFwdMsg" dir=3D"ltr"><font face=3D"Cal=
ibri, sans-serif" color=3D"#000000" style=3D"font-size:11pt"><b>From:</b> He=
aleys <<a href=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_blank=
" rel=3D"noreferrer">healeys-bounces@autox.team.net</a>>
on behalf of Fred Wescoe <<a href=3D"mailto:fredwescoe@gmail.com"; target=
=3D"_blank" rel=3D"noreferrer">fredwescoe@gmail.com</a>><br>
<b>Sent:</b> Tuesday, February 3, 2026 4:02:17 PM<br>
<b>To:</b> healeys <<a href=3D"mailto:Healeys@autox.team.net"; target=3D"_=
blank" rel=3D"noreferrer">Healeys@autox.team.net</a>><br>
<b>Subject:</b> [Healeys] Fuel pump</font>
<div> </div>
</div>
<div>
<div dir=3D"ltr">
<div dir=3D"ltr">Listers,
<div><br>
</div>
<div>I have the standard SU fuel pump on my 66 BJ8. It was rebuilt sev=
eral years ago and the car ran with the pump with no problems. </=
div>
<div><br>
</div>
<div>The car has been sitting for about 8 months now and the pump will n=
ot run.</div>
<div><br>
</div>
<div>I have tried smacking the pump with a rubber hammer but no joy. I=
s there another way to get the pump started without removing it and opening i=
t up?</div>
<div><br>
</div>
<div>As always, thanks in advance for your help.</div>
<div><br>
</div>
<div>Fred</div>
<div><br>
</div>
<div>66 BJ8</div>
</div>
</div>
</div>
</div>
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