[Diy_efi] Charging (alternator/Regulator) woes

[Buck Williams]

lotsss of battries,, alternatoars, and sartars, were fought, and changessd 
out becasue of worn ignaitioan wiswitches, especiallalay when lots of keys 
wereeee put on the key raing,,, that extra wietgh wore them out,buck


>From: Bill Washington <bill.washington at nec.com.au>
>Reply-To: diy_efi at diy-efi.org
>To: diy_efi at diy-efi.org
>Subject: [Diy_efi] Charging (alternator/Regulator) woes
>Date: Mon, 07 Nov 2005 14:58:02 +1100
>
>Gents,
>	I just remembered an experience I had with a car I was driving a few years 
>ago - intermittent charging - sometimes chsrge, sometimes discharge -
>Auto-electrician replaced the Regulator claiming it to be faulty - no 
>change - the problem turned out to be that the battery feed for the Reg 
>came directly through the ignition switch, and the contacts in the ignition 
>switch had worn to the point that it had become resistive, thus not being 
>able to supply enough current via the regulator to the Alternator rotor 
>(field winding) the solution was to use the ignition switch to throw a 
>relay which in turn supplied 12V directly from the battery to the 
>regulator, which cound that accurately control the field current to the 
>alternator ..... problem solved!
>
>Regards
>Bill
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