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Negetive earth question?
Posted: Wed Mar 09, 2005 7:16 pm
by samheath100
I am changing my moggy over to negetive earth, Will the elctronic fuel pump be affected by this? I know other things will be affected but I am not sure about the fuel pump. Thanks sam.[/img]
Posted: Wed Mar 09, 2005 7:36 pm
by bigginger
Posted: Wed Mar 09, 2005 7:43 pm
by Welung666
I was thinking 'De ja vue' as well
Lee
Posted: Wed Mar 09, 2005 10:14 pm
by simmitc
We've certainly done the standard fuel pump to death, but I spotted the word "electronic" in the question. Generally electronic bits seem to be rather sensitive to polarity. I've seen these units advertsied, but never fitted one. Does anyone have any experience of the electronic pumps?
Posted: Wed Mar 09, 2005 10:34 pm
by bigginger
Posted: Wed Mar 09, 2005 10:37 pm
by d_harris
so you can't just turn it through 180 degrees then???
Posted: Thu Mar 10, 2005 6:59 am
by Alec
Hello Sam,
it seems you have three options, leave it as positive earth, buy a negative earth or standard pump or isolate the pump electrically from the car body (ideally contain it in a plastic box as the body of the pump will be live relative to the car body) and swop the connections.
Alec
P.S. it is worth a look inside the pump to see if an internal polarity change is easy. It will be obvious if it is.
Posted: Thu Mar 10, 2005 1:38 pm
by Cam
Moved to Electrical..........
Posted: Thu Mar 10, 2005 2:59 pm
by samheath100
thanks lads, sorry but i forgot where i posted this, ive found it now, see ya