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These are German brand HARDI pumps. They are quite good and very popular in=
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Germany. I think they are a good design, but not superior to SU pumps. Here=
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they are less expensive compared to new SU pumps and I think that=C2=B4s th=
e=20
main reason for buying them.
=20
Josef Eckert
Konigswinter/Germany
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=20
-----Original-Nachricht-----
Betreff: Re: [Healeys] su pumps again
Datum: 2016-11-23T02:35:00+0100
Von: "Bob Spidell" <bspidell@comcast.net>
An: "healeys" <healeys@autox.team.net>
=20
=20
=20
Stumbled across this the other day (they also have them for later cars):
=20
http://www.bpnorthwest.com/austin-healey/bn1-bn2/fuel-system/fuel-pump-elec=
tronic-dual-polarity-bn1-bn4-mg-tf-mga-mgb-to-64.html
<http://www.bpnorthwest.com/austin-healey/bn1-bn2/fuel-system/fuel-pump-ele=
ctronic-dual-polarity-bn1-bn4-mg-tf-mga-mgb-to-64.html>
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NFI, and I've never used one.
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Bob
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------------------------------------------------------------------------
=20
My car had a generic 'modern' plastic pump which worked fine but isn't
quite kosher so I got a new SU pump from Burlen and that is where I
discovered the diaphragm issue. It really does let quite a bit of
petrol smell through- enough for me to take it apart and look for the
leak. Burlen sent a replacement diaphragm which is, of course, no
better.
=20
If you have a used 60 year old triple layer diaphragm for sale I'd be
interested in upgrading my new one!
=20
The best design I have seen is an Italian copy that had a single layer
clear plastic diaphragm and also a plastic toggle inside the points
which is so much simpler than the mousetrap. Been in a Bn2 for longer
than I have been alive and only needed a replacement inlet fibre
sealing washer to stop a leak.
=20
Andy.
=20
On 11/23/16, Oudesluys <coudesluijs@chello.nl> wrote:
> I have not come across the single layer diaphragms. I have seen offered
> on ebay new dual layer ones from China and the UK. So far I have had
> enough scrap pumps of the wrong type to provide enough good triple layer
> diaphragms for the ones that were fit for a rebuild as the so called
> High Pressure type I want, AUF301 or W/AZX1307/8 or equivalent, so I
> have no experience with the modern replacements.
> The permeation of petrol will probably very, very little if any, so I
> would not worry about it. Some modern rubbers withstand all fuels and so
> as long as these are used it will probably be OK. Time will tell. Anyway
> the pumps cast iron coil housing and the space on top under the bakelite
> cap over the points assembly is vented.
> As the old triple layer diaphragms seem to last for ever I would not
> replace them other then when they have become hard and cracked or when
> the thin plastic membrane that keeps the petrol away from the rubber is
> damaged.
> Kees Oudesluijs
=20
=20
=EF=BB=BF
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; charset=
=3DUTF-8"/><title></title></head><body><p style=3D"margin: 0px;"><span styl=
e=3D"font-family: arial,helvetica,sans-serif; font-size: 10pt; color: #0000=
00; text-decoration: none;"> </span></p>
<p style=3D"margin: 0px;"><span style=3D"font-family: arial,helvetica,sans-=
serif; font-size: 10pt; color: #000000; text-decoration: none;"> </spa=
n></p>
<p style=3D"margin: 0px 5px 0px 0px;"><span style=3D"font-family: arial,hel=
vetica,sans-serif; font-size: 10pt; color: #000000; text-decoration: none;"=
>These are German brand HARDI pumps. They are quite good and very popular i=
n Germany. I think they are a good design, but not superior to SU pumps. He=
re they are less expensive compared to new SU pumps and I think that´=
s the main reason for buying them.<br /></span></p>
<p style=3D"margin: 0px 5px 0px 0px;"> </p>
<p style=3D"margin: 0px 5px 0px 0px;"><span style=3D"font-family: arial,hel=
vetica,sans-serif; font-size: 10pt; color: #000000; text-decoration: none;"=
>Josef Eckert</span></p>
<p style=3D"margin: 0px 5px 0px 0px;"><span style=3D"font-family: arial,hel=
vetica,sans-serif; font-size: 10pt; color: #000000; text-decoration: none;"=
>Konigswinter/Germany</span></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;">-----Original-Nachricht-----</p>
<p style=3D"margin: 0px;">Betreff: Re: [Healeys] su pumps again</p>
<p style=3D"margin: 0px;">Datum: 2016-11-23T02:35:00+0100</p>
<p style=3D"margin: 0px;">Von: "Bob Spidell" <bspidell@comcast.net></=
p>
<p style=3D"margin: 0px;">An: "healeys" <healeys@autox.team.net></p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<p style=3D"margin: 0px;"> </p>
<div>
<div style=3D"font-family: Arial; font-size: 12pt; color: #000000;">
<div>Stumbled across this the other day (they also have them for later cars=
):</div>
<div> </div>
<div><a href=3D"http://www.bpnorthwest.com/austin-healey/bn1-bn2/fuel-syste=
m/fuel-pump-electronic-dual-polarity-bn1-bn4-mg-tf-mga-mgb-to-64.html">http=
://www.bpnorthwest.com/austin-healey/bn1-bn2/fuel-system/fuel-pump-electron=
ic-dual-polarity-bn1-bn4-mg-tf-mga-mgb-to-64.html</a></div>
<div> </div>
<div>NFI, and I've never used one.</div>
<div> </div>
<div>Bob</div>
<div> </div>
<hr id=3D"zwchr" />
<div style=3D"color: #000; font-weight: normal; font-style: normal; text-de=
coration: none; font-family: Helvetica,Arial,sans-serif; font-size: 12pt;">=
<br />
<div> </div>
My car had a generic 'modern' plastic pump which worked fine but isn't<br /=
>quite kosher so I got a new SU pump from Burlen and that is where I<br />d=
iscovered the diaphragm issue. It really does let quite a bit of<br />petro=
l smell through- enough for me to take it apart and look for the<br />leak.=
Burlen sent a replacement diaphragm which is, of course, no<br />better.<b=
r />
<div> </div>
If you have a used 60 year old triple layer diaphragm for sale I'd be<br />=
interested in upgrading my new one!<br />
<div> </div>
The best design I have seen is an Italian copy that had a single layer<br /=
>clear plastic diaphragm and also a plastic toggle inside the points<br />w=
hich is so much simpler than the mousetrap. Been in a Bn2 for longer<br />t=
han I have been alive and only needed a replacement inlet fibre<br />sealin=
g washer to stop a leak.<br />
<div> </div>
Andy.<br />
<div> </div>
On 11/23/16, Oudesluys <coudesluijs@chello.nl> wrote:<br />> I hav=
e not come across the single layer diaphragms. I have seen offered<br />>=
; on ebay new dual layer ones from China and the UK. So far I have had<br /=
>> enough scrap pumps of the wrong type to provide enough good triple la=
yer<br />> diaphragms for the ones that were fit for a rebuild as the so=
called<br />> High Pressure type I want, AUF301 or W/AZX1307/8 or equiv=
alent, so I<br />> have no experience with the modern replacements.<br /=
>> The permeation of petrol will probably very, very little if any, so I=
<br />> would not worry about it. Some modern rubbers withstand all fuel=
s and so<br />> as long as these are used it will probably be OK. Time w=
ill tell. Anyway<br />> the pumps cast iron coil housing and the space o=
n top under the bakelite<br />> cap over the points assembly is vented.<=
br />> As the old triple layer diaphragms seem to last for ever I would =
not<br />> replace them other then when they have become hard and cracke=
d or when<br />> the thin plastic membrane that keeps the petrol away fr=
om the rubber is<br />> damaged.<br />> Kees Oudesluijs<br /><br />
<div> </div>
</div>
<div> </div>
</div>
</div>=EF=BB=BF</body></html>
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