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The coil should have a resistance around 3 - 5 ohms Richard. I have had bad
ones that still work (poorly) with less than 2 ohms.
M
On Thu, Feb 5, 2026 at 11:02=E2=80=AFAM Richard Mayor <boyracer466@gmail.co=
m> wrote:
> I believe I have just such a weakened pump. New points, clean and supple
> diaphragm, works fine on bench with no fuel, once working with fuel it
> slows down and stops. I have adjusted the stroke up and down with always
> the same result. I always suspected there was something amiss with the
> coil. How do I test it to confirm that is the issue?
>
>
> Sent from my iPad
>
> On Feb 4, 2026, at 7:37=E2=80=AFPM, Michael Salter via Healeys <
> healeys@autox.team.net> wrote:
>
> =EF=BB=BF
> One thing about the SU type of fuel pump which is often misunderstood is
> what happens to the pump in the event that the inlet becomes blocked. In
> that situation the low pressure on the inlet side of the diaphragm preven=
ts
> the armature from rising and the points from opening. This means that
> current continues to pass through the coil 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 overheat and become weakened.
> 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.
> Hopefully this will save people from wasting time in this situation.
>
> M
>
>
> ------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Al Fuller
> via Healeys <healeys@autox.team.net>
> *Sent:* Wednesday, February 4, 2026 7:58:09 PM
> *To:* Jean Caron <vintage_roadster_restoration@hotmail.com>
> *Cc:* healeys <Healeys@autox.team.net>
> *Subject:* Re: [Healeys] Fuel pump
>
> Pulling out the pump and checking on the bench might be in order.
>
> As to the weather, it's just getting to be driving season here in the
> desert. :)
>
> ________________
> Sent from my phone
> Best Regards,
> Al Fuller
>
> On Tue, Feb 3, 2026, 3:23=E2=80=AFPM Jean Caron <
> vintage_roadster_restoration@hotmail.com> wrote:
>
> It is February, take it out and rebuild it.
>
> Jean
>
> Sent from my Bell Samsung device over Canada=E2=80=99s largest network.
> ------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Fred Wescoe
> <fredwescoe@gmail.com>
> *Sent:* Tuesday, February 3, 2026 4:02:17 PM
> *To:* healeys <Healeys@autox.team.net>
> *Subject:* [Healeys] Fuel pump
>
> Listers,
>
> I have the standard SU fuel pump on my 66 BJ8. It was rebuilt several
> years ago and the car ran with the pump with no problems.
>
> The car has been sitting for about 8 months now and the pump will not run=
.
>
> I have tried smacking the pump with a rubber hammer but no joy. Is there
> another way to get the pump started without removing it and opening it up=
?
>
> As always, thanks in advance for your help.
>
> Fred
>
> 66 BJ8
> _______________________________________________
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation $12.75
>
> Archive: http://www.team.net/pipermail/healeys
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>
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> http://autox.team.net/mailman/listinfo/healeys
>
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> http://autox.team.net/mailman/options/healeys/alfuller194@gmail.com
>
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> Support Team.Net http://www.team.net/donate.html
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>
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>
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> http://autox.team.net/mailman/listinfo/healeys
>
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>
>
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,sa=
ns-serif;font-size:small">The coil should have a resistance around 3 - 5 oh=
ms Richard. I have had bad ones that still work (poorly) with less than 2 o=
hms.</div><div class=3D"gmail_default" style=3D"font-family:arial,sans-seri=
f;font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-fam=
ily:arial,sans-serif;font-size:small">M</div></div><br><div class=3D"gmail_=
quote gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, =
Feb 5, 2026 at 11:02=E2=80=AFAM Richard Mayor <<a href=3D"mailto:boyrace=
r466@gmail.com">boyracer466@gmail.com</a>> wrote:<br></div><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px soli=
d rgb(204,204,204);padding-left:1ex"><div dir=3D"auto">I believe I have jus=
t such a weakened pump. New points, clean and supple diaphragm, works fine =
on bench with no fuel, once working with fuel it slows down and stops.=C2=
=A0 I have adjusted the stroke up and down with always the same result.=C2=
=A0 I always suspected there was something amiss with the coil. How do I te=
st it to confirm that is the issue?<div><br></div><div>=C2=A0<br id=3D"m_-6=
993079965671064295lineBreakAtBeginningOfSignature"><div dir=3D"ltr">Sent fr=
om my iPad</div><div dir=3D"ltr"><br><blockquote type=3D"cite">On Feb 4, 20=
26, at 7:37=E2=80=AFPM, Michael Salter via Healeys <<a href=3D"mailto:he=
aleys@autox.team.net" target=3D"_blank">healeys@autox.team.net</a>> wrot=
e:<br><br></blockquote></div><blockquote type=3D"cite"><div dir=3D"ltr">=EF=
=BB=BF
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,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 wh=
at happens to the pump in the event that the inlet becomes blocked. In that=
situation the low pressure on the inlet side of the diaphragm prevents the=
armature from rising and the points
from opening.=C2=A0 This means that current continues to pass through the =
coil until sufficient fuel passes into the pump through the blockage to all=
ow the diaphragm to rise and the points to open. This causes the coil to ov=
erheat and become weakened.=C2=A0</div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,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 ra=
ther 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-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(33,33,33)">
Hopefully this will save people from wasting time in this situation.=C2=A0<=
/div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,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-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(33,33,33)">
M</div>
<div id=3D"m_-6993079965671064295ms-outlook-mobile-body-separator-line" sty=
le=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Arial,Helv=
etica,sans-serif;font-size:12pt" dir=3D"auto">
<div style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ar=
ial,Helvetica,sans-serif;font-size:12pt" dir=3D"auto">
<br>
</div>
</div>
<div style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ar=
ial,Helvetica,sans-serif;font-size:12pt" id=3D"m_-6993079965671064295ms-out=
look-mobile-signature" dir=3D"auto">
<div style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ar=
ial,Helvetica,sans-serif;font-size:12pt" dir=3D"auto">
<br>
</div>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_-6993079965671064295divRplyFwdMsg" dir=3D"ltr"><font face=3D"C=
alibri, sans-serif" style=3D"font-size:11pt" color=3D"#000000"><b>From:</b>=
Healeys <<a href=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_b=
lank">healeys-bounces@autox.team.net</a>> on behalf of Al Fuller via Hea=
leys <<a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank">healey=
s@autox.team.net</a>><br>
<b>Sent:</b> Wednesday, February 4, 2026 7:58:09 PM<br>
<b>To:</b> Jean Caron <<a href=3D"mailto:vintage_roadster_restoration@ho=
tmail.com" target=3D"_blank">vintage_roadster_restoration@hotmail.com</a>&g=
t;<br>
<b>Cc:</b> healeys <<a href=3D"mailto:Healeys@autox.team.net"; target=3D"=
_blank">Healeys@autox.team.net</a>><br>
<b>Subject:</b> Re: [Healeys] Fuel pump</font>
<div>=C2=A0</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 se=
ason here in the desert. :)=C2=A0</div>
<div><br>
</div>
<div>________________<br>
Sent from my phone <br>
Best Regards,<br>
Al Fuller</div>
</div>
<br>
<div>
<div dir=3D"ltr">On Tue, Feb 3, 2026, 3:23=E2=80=AFPM Jean Caron <<a hre=
f=3D"mailto:vintage_roadster_restoration@hotmail.com"; target=3D"_blank">vin=
tage_roadster_restoration@hotmail.com</a>> wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div>
<div dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-sys=
tem,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-sys=
tem,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-sys=
tem,Roboto,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(33,33,33)">
Jean</div>
<div id=3D"m_-6993079965671064295x_m_16339394548668146ms-outlook-mobile-bod=
y-separator-line" dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontServi=
ce,-apple-system,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<div style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,Ar=
ial,Helvetica,sans-serif;font-size:12pt">
<br>
</div>
</div>
<div id=3D"m_-6993079965671064295x_m_16339394548668146ms-outlook-mobile-sig=
nature" dir=3D"auto" style=3D"font-family:Aptos,Aptos_MSFontService,-apple-=
system,Roboto,Arial,Helvetica,sans-serif;font-size:12pt">
<span style=3D"font-family:Aptos,Aptos_MSFontService,-apple-system,Roboto,A=
rial,Helvetica,sans-serif;font-size:12pt">Sent from my Bell Samsung device =
over Canada=E2=80=99s largest network.</span></div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_-6993079965671064295x_m_16339394548668146divRplyFwdMsg" dir=3D=
"ltr"><font face=3D"Calibri, sans-serif" color=3D"#000000" style=3D"font-si=
ze:11pt"><b>From:</b> Healeys <<a href=3D"mailto:healeys-bounces@autox.t=
eam.net" rel=3D"noreferrer" target=3D"_blank">healeys-bounces@autox.team.ne=
t</a>>
on behalf of Fred Wescoe <<a href=3D"mailto:fredwescoe@gmail.com"; rel=
=3D"noreferrer" target=3D"_blank">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"; rel=3D"nor=
eferrer" target=3D"_blank">Healeys@autox.team.net</a>><br>
<b>Subject:</b> [Healeys] Fuel pump</font>
<div>=C2=A0</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.=C2=A0 It was rebuilt se=
veral years ago and the car ran with the pump with no problems.=C2=A0=C2=A0=
</div>
<div><br>
</div>
<div>The car has been sitting for about 8 months=C2=A0now and the pump will=
not run.</div>
<div><br>
</div>
<div>I have tried smacking the pump with a rubber hammer but no joy.=C2=A0 =
Is there another way to get the pump started without removing it and openin=
g it up?</div>
<div><br>
</div>
<div>As always, thanks in advance for your=C2=A0help.</div>
<div><br>
</div>
<div>Fred</div>
<div><br>
</div>
<div>66 BJ8</div>
</div>
</div>
</div>
</div>
_______________________________________________<br>
rer noreferrer" target=3D"_blank">
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<br>
</blockquote>
</div>
</div>
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