[Healeys] Negative ground SU fuel pump question

WILLIAM B LAWRENCE ynotink at msn.com
Mon May 10 15:07:27 MDT 2021


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...
________________________________
From: Healeys <healeys-bounces at autox.team.net> on behalf of i erbs <eyera3000 at gmail.com>
Sent: Sunday, May 9, 2021 5:49 AM
To: richard mayor <boyracer466 at gmail.com>
Cc: healeys <healeys at autox.team.net>
Subject: Re: [Healeys] Negative ground SU fuel pump question

What's the part # ?

Ira Erbs
1959 AH 100-6
1967 MGB
Milwaukie, OR

On Sat, May 8, 2021, 10:24 PM richard mayor <boyracer466 at gmail.com<mailto:boyracer466 at gmail.com>> wrote:
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?
Is there a way to check polarity first ...... before I ruin a good fuel pump?
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