[Tigers] Amp Drain

[Will Seay]

Tym,

You say that your battery is disconnected but you are seeing a current
drain from the battery.  We seem to have a failure to communicate here.
Either your battery is disconnected or you are drawing 1.5A from it.  You
can't have it both ways.  I suspect that what you have done is placed your
ammeter in parallel with the disconnect switch.  With the switch in the OFF
(open) position your ammeter will be in series with any load presented to
the battery.  Let's assume that's the case.  There are three brown wires
going to the battery (B) connector of the voltage regulator your 1.5A could
be going out of any of them.  One wire goes to the ignition switch.
Assuming that the ignition switch is in the OFF position, that can't be
where the 1.5A is going.  The other wire goes to the lights.  If your light
switch is good and your lights aren't on, your 1.5A isn't going there
either.  There's another possibility though.  It could be that the
disconnect relay in the voltage regulator is stuck on and 1.5A is going
into your generator.  The simplest way to find out where the 1.5A is going
is to connect only the battery wire to the voltage regulator B terminal.
If the 1.5A is still there then the problem is the voltage regulator and
the problem will go away when you put your new alternator in.  If there is
no current draw with the two brown wires disconnected, try replacing the
wires one at a time.  The problem will either be in the ignition (switch)
circuit or the light circuit.

Good luck

-- 
Will - 382001570
Tigers at embarqmail.com


On Mon, Jun 11, 2018 at 1:03 PM, Dr. T. Y. McDowell via Tigers <
tigers at autox.team.net> wrote:

> Tigers,
>
>
> I recently completed a 3 1/2 year restoration on my Mk1A.  As expected,
> there are a few "bugs" to work out.
>
>
> I'm moving from the original generator to an alternator (waiting for the
> CAT bracket assembly to arrive) and received a lot of help from the List
> last week.  Thanks!
>
>
> Now I have a new problem!  I have an "on/off" type switch on my battery
> (new battery) that I turn off when not running the Tiger.  Even with the
> battery turned "off" there is a constant 1.5 amp drain at the battery.
> Yesterday, I started disconnecting one thing at a time to see if the amp
> drain went away.  I want to find the problem before installing the
> alternator.  This morning I disconnected the battery pole on the voltage
> regulator and my digital multimeter read "0".
>
> I'm not any kind of engineer, so I have no idea what that means, or where
> to look.  Could my problem be the voltage regulator - which will be
> eliminated with the alternator conversion, or should I look elsewhere?
>
>
> Thanks in advance for any advice/assistance.
>
>
> Tym McDowell
>
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