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[Healeys] FW: fuel pump polarity

To: "'Healey Mail List'" <healeys@autox.team.net>
Subject: [Healeys] FW: fuel pump polarity
From: "John Sims" <ahbn6@verizon.net>
Date: Mon, 31 Aug 2009 13:35:45 -0400
But it seems to me that if they all have been used on both pos and neg cars,
then you have answered your question -- no diode or else it would have blown
thus polarity does not matter. But it is easy to pop the cap and see if
there is one.

John Sims, BN6
Aberdeen, NJ
 
http://www.healey6.com

-----Original Message-----
From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
On Behalf Of Awgertoo@aol.com
Sent: Monday, August 31, 2009 11:51 AM
To: coudesluijs@chello.nl; mbruce6@cogeco.ca
Cc: healeys@autox.team.net
Subject: Re: [Healeys] fuel pump polarity

SU pumps are polarity sensitive and supposedly while they will run for a
while with RP they will die an early death.  Polarity can be changed by
addition of a diode.  My recollection is that polarity was indicated by a
broad
rubber band at the head of the pump--one color meant + and the other meant
-.  If I am not wrong then I am sure someone on this list knows the emmis
and will share it.

Best--Michael Oritt
-------------------------------------------------------------


In a message dated 8/31/2009 11:44:57 A.M. Eastern Daylight Time,
coudesluijs@chello.nl writes:

I do not  think that polarity plays a role unless a diode is used
somewhere to  prevent sparking.
Kees Oudesluijs
NL

Mal Bruce schreef:
> I  have four fuel pumps, three are AUB 662-1 and the other is AUB 662.
Since
> the pumps have all been used at one time or another on both MGC  and BJ8,
> negative and positive ground respectively, how do I find the  polarity.
Thanks
> in advance for the  help.
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