[Healeys] fuel pump polarity

[Awgertoo at aol.com]

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