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hayhay5757 · Jun 8, 2017

TO 20 Have a 12 ault. conversion kit needs a negative ground have a positive ground now if I switch to neg. ground will starter run backwards ??

Dieseltech · Jun 8, 2017

Starter will turn the same as before. Do need to switch the two small wires on both the coil and ammeter though..

Michael QLD OZ · Jun 8, 2017

The wires that you are refering to, are they the positive wire from switch to coil and negative side of coil to outside of distributor?

Dieseltech · Jun 8, 2017

On positive ground systems the distributor wire to coil goes to the + on the coil, and the hot wire from the switch goes to the - on the coil. When system is changed to negative ground these wires must be switched. Ammeter wires need switched too so the gauge won't read backwards.

Michael QLD OZ · Jun 9, 2017

That is Great news, it means that the TED20 I picked up was already changed to a negative earth.
Thanks

hayhay5757 · Jun 9, 2017

Thanks All

Tramway Guy · Jun 10, 2017

Almost all starters are "series wound"; so when you change
the polarity of the starter, it changes both the armature polarity
AND the field polarity. This the rotation stays the same. The
exception is some newer starters that have permanent
magnets instead of field coils.

phil(va) · Jun 11, 2017

Yes. Small (primary) wire from coil to distributor should be same as battery ground.

phil(va) · Jun 11, 2017

Starter no problem. In addition to the coil and ammeter info noted below, if tractor has lights, the bulbs will need to be changed.

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hayhay5757

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Dieseltech

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Michael QLD OZ

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Dieseltech

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Michael QLD OZ

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hayhay5757

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Tramway Guy

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phil(va)

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phil(va)

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