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For some years now new SU pumps should have been polarity independent =
since they started using a bi-directional points quenching device =
instead of a diode and resistor. It doesn't help when the boxes are =
labelled 'dual polarity' but the information sheet inside the box still =
states 'All AZX pumps are polarity conscious'. Polarity-dependant =
devices have red and black insulation (and can be reversed to change =
polarity), polarity-independent devices have the same colour insulation =
on both wires. I don't know about electronic pumps, but it's hardly =
difficult to make those dual polarity as well.
PaulH.
----- Original Message -----=20
My only concern was buying the right replacement fuel pump, which Moss =
stocks.
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<DIV><FONT size=3D2>For some years now new SU pumps should have been =
polarity=20
independent since they started using a bi-directional points =
quenching=20
device instead of a diode and resistor. It doesn't help when =
the=20
boxes are label</FONT><FONT size=3D1><FONT size=3D2>led 'dual polarity' =
but the=20
information sheet inside the box still states 'All AZX pumps are =
polarity=20
conscious'. Polarity-dependant devices have red and black =
insulation (and=20
can be reversed to change polarity), polarity-independent devices have =
the same=20
colour insulation on both wires. I don't know about electronic =
pumps, but=20
it's hardly difficult to make those dual polarity as =
well.</FONT></FONT></DIV>
<DIV><FONT size=3D2></FONT> </DIV>
<DIV><FONT size=3D2>PaulH.</FONT></DIV>
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style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: =
black"><BR> </DIV>
<DIV dir=3Dauto>
<DIV dir=3Dauto>
<DIV dir=3Dauto>My only concern was buying the right replacement fuel =
pump,=20
which Moss stocks.</DIV></DIV></DIV></BLOCKQUOTE></BODY></HTML>
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