Thanks Theo,
I didn't think to check what the headlights draw (according to the gauge)
when the car isn't running. But that would be a quick way to get a rough
calibration on the gauge. I'll have to do that next time I am out in the
garage.
But even if the gauge isn't exceptionally accurate, it does show me charge
vs discharge, so I know I have a problem. Its just odd since I am now more
use to alternator systems that generally either work, or don't work. Don't
think I have ever had a charging system problem before where it 'sort of'
works
I beginning to wonder if I left my ballast resistor on when I connected the
pertronix, so that might explain a larger voltage drop at the ignition than
I could normally imagine from just a charging system problem.
I suppose it would be smart no matter what the outcome is of any of the
problems to just go ahead and check various grounds on the car, because
weird grounds do cause strange problems.
Sometimes I spend too much time thinking, Why would it do that, rather than
just go make sure things are right (like grounds)
Thanks for help
Steve
--------------------------------------------------
From: "Smit, Theo" <Theo.Smit@dynastream.com>
Sent: Thursday, June 06, 2013 4:08 PM
To: "Tiger Man" <tigerman67@hotmail.com>; <tigers@autox.team.net>
Subject: RE: [Tigers] Tiger charging normally until you turn headlights on
> First check that your ammeter is working at all and that it's wired
> properly. With the ignition off, turn on the headlights. You should show
> about 10 amps discharge. The horns should also draw about 6-10 amps if
> they're adjusted properly, IIRC. The spec current draw for each horn is
> given in the factory manual.
>
> It does sound like your regulator isn't doing the job. For proper
> charging, the ignition system voltage needs to be about 13.5 to 14 volts
> when the engine is running; you can check this with a voltmeter. Turning
> on the lights should not cause a significant voltage drop. I'd expect to
> see a couple of amps of charge current even at idle, and more immediately
> after you've started the engine. If it won't charge unless you rev the
> engine, maybe check the generator brushes?
>
> If you have sudden cutouts then maybe something isn't grounded properly.
> Check the ground connections on the engine to chassis, from the generator
> to the chassis, and from the battery to the chassis. Are your headlights
> operating at full brightness? When the engine cuts out, do the headlights
> suddenly dim? This might be hard to check without a helper...
>
> Theo
>
>
>> -----Original Message-----
>> From: tigers-bounces@autox.team.net [mailto:tigers-
>> bounces@autox.team.net] On Behalf Of Tiger Man
>> Sent: June 6, 2013 3:59 PM
>> To: tigers@autox.team.net
>> Subject: [Tigers] Tiger charging normally until you turn headlights on
>>
>> Hi all,
>>
>> I thought I would mention this one to the list, make sure I am going in
>> the right direction. If I start my tiger and run the RPM's up, My amp
>> meter shows about a 5 Amp charge (until the battery is charged back
>> up). If I turn my headlights on (with the RPM's up) it shows about a 3
>> Amp discharge. The other interesting side effect is while driving
>> around with the headlights on, the car cuts out dramatically but
>> momentarily... like the Pertronix ign module is browning out or
>> something?
>
>
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