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Electronic distributors and positive earth
https://www.ausmini.com/forums/viewtopic.php?f=2&t=100274
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Author:  Phil 850 [ Sun Aug 09, 2020 9:47 am ]
Post subject:  Electronic distributors and positive earth

Hi all
Can you use an electronic distributor (pointsless, Hall effect I think) with a positive earth car.
I’m building an engine for my daughter and want to minimise maintenance and improve reliability for her.

Phil

Author:  timmy201 [ Sun Aug 09, 2020 9:59 am ]
Post subject:  Re: Electronic distributors and positive earth

You just need to buy the right one

http://www.accuspark.co.uk/kit_search.html

Author:  Phil 850 [ Sun Aug 09, 2020 10:37 am ]
Post subject:  Re: Electronic distributors and positive earth

Thanks Tim
I couldn’t find a positive earth kit for a 45D.
As it is a simple two wire system, I’d have thought you could just reverse the connections to the coil and earth.
However, perhaps the polarity of the magnets has an effect on the direction of the current.
All a bit above my pay grade unfortunately.

Phil

Author:  Scoop [ Sun Aug 09, 2020 11:35 am ]
Post subject:  Re: Electronic distributors and positive earth

You can definitely not swap the wire's around, the module will be cactus. Just get a complete positive earth electronic dizzy, more often than not an original one is slogged out in the bushes and not worth putting a module in it.

Author:  Oscar [ Sun Aug 09, 2020 11:47 am ]
Post subject:  Re: Electronic distributors and positive earth

Just swap the car around to negative earth Phil - unless you need to keep it bog-stock original of course.

Author:  timmy201 [ Sun Aug 09, 2020 4:35 pm ]
Post subject:  Re: Electronic distributors and positive earth

Did they make any factory cars with positive earth and a 45D? Might be hard to find...

Author:  Phil 850 [ Sun Aug 09, 2020 6:36 pm ]
Post subject:  Re: Electronic distributors and positive earth

Timmy
The 45D is for the 1275 we’re building for my daughters 850 which is still positive earth.
Yes we could change it (if we knew how) but it just adds to the list of jobs.

Author:  timmy201 [ Sun Aug 09, 2020 7:37 pm ]
Post subject:  Re: Electronic distributors and positive earth

Here are a couple of guides
http://blog.simonbbc.com/classic-car-pr ... -ignition/

https://www.minimania.com/Electrical_polarity

Author:  Phil 850 [ Sun Aug 09, 2020 8:44 pm ]
Post subject:  Re: Electronic distributors and positive earth

Thanks Timmy
That’s pretty simple (even for me).

Phil

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