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<div>A normal SU pump is not polarity sensitive. If it uses electronics (diodes, transistors etc) in its switching system it is polarity sensitive and wil leak smoke...</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Healeys <healeys-bounces@autox.team.net> on behalf of i erbs <eyera3000@gmail.com><br>
<b>Sent:</b> Sunday, May 9, 2021 5:49 AM<br>
<b>To:</b> richard mayor <boyracer466@gmail.com><br>
<b>Cc:</b> healeys <healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Negative ground SU fuel pump question</font>
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<div dir="auto">What's the part # ?<br>
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<div>Ira Erbs<br>
1959 AH 100-6<br>
1967 MGB<br>
Milwaukie, OR</div>
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<div dir="ltr" class="x_gmail_attr">On Sat, May 8, 2021, 10:24 PM richard mayor <<a href="mailto:boyracer466@gmail.com">boyracer466@gmail.com</a>> wrote:<br>
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<div>I believe I have a negative ground SU fuel pump, but I'm not sure. If I hook it up with the wrong polarity, what will happen? Get hot and smoke?<br>
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<div>Is there a way to check polarity first ...... before I ruin a good fuel pump?
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