Re: Positive ground

Posted by captaink on August 31, 2005 at 09:40:30 from (66.115.214.56):

In Reply to: Positive ground posted by Tyrod on August 31, 2005 at 08:34:15:

First, if it has a magneto it doesn’t really matter except for witch way the ammeter swigs for charge/discharge. If by some chance it has an alternator, it probably is negative ground, but not necessarily. (Hate to be wishy-washy but I’ve read on here that there are alternators that are positive ground but not very likely.) If it has a generator, the generator can be polarized either way.

If it has a distributor and coil, then look on the coil. On it there are terminals where the wires connect that are marked + and –, the one going to the distributor is the one that SHOULD be the same as the one on the battery that is grounded. For an example of positive ground the + terminal on the coil should go to the distributor and the + terminal of the battery would be connected to the ground on the tractor.

This is not a guarantee, but the only things that really care on your tractor is the coil and the generator/alternator and the generator can be polarized. The ammeter doesn’t really care, but you will probably want it to swing the right way.

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