RE: IML: voltage limiter question

[Tim Durrer <tdkd99@xxxxxxxxx>]

You may be right about the meter It belonged to my
grandfather so it has some years on it. I just tried
my test lamp and with ignition on I am getting a
steady bright light on that blue wire leading back to
the tank. I ordered a new voltage limiter from Parts
America that should be here on Monday. I plan to work
on the car again next weekend so, I will let you know
how it goes.

Thanks, for your help It is greatly appreciated.

Tim

--- Dick Benjamin <dickb@xxxxxxxxx> wrote:

> Well, I don't understand what is going on, but the
> pulsating voltage is
> coming from something, and the wire to the tank
> sender is one place it is
> supposed to be, so I suspect there is another
> voltage limiter somewhere else
> in the vehicle.   The battery is hooked up to
> something, or else you would
> not see anything (unless your meter is telling you
> lies.)
> 
> If you are seeing this with no battery hooked to
> anything, I suspect your
> meter is fooling you.
> 
> Dick Benjamin
> 
> -----Original Message-----
> From: mailing-list-owner@xxxxxxxxxxxxxxxx
> [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On
> Behalf Of Tim Durrer
> Sent: Friday, August 18, 2006 9:33 AM
> To: mailing-list@xxxxxxxxxxxxxxxx
> Subject: RE: IML: voltage limiter question
> 
> No, I don't have a battery hooked to the voltage
> limiter. The limiter plugs into the back of the
> instrument panel which has been removed from the
> car.
> Just for kicks I probed the disconnected blue wire
> that goes back to the tank and to my amazement there
> was a pulsating voltage on it with the ignition on!
> 
> It just didn't seem to ring true with what I was
> seeing on the wiring diagram to have voltage on that
> wire when the limiter was disconnected and removed
> from the car.
> 
> Tim
> 
> --- Dick Benjamin <dickb@xxxxxxxxx> wrote:
> 
> > All the voltage "limiter" needs to produce that
> > pulsating voltage is 12
> > volts on its input wire, and ground to its
> mounting
> > point, so it must have
> > those somehow, even though it's sitting on the
> > floor.  
> > 
> > You do have a battery hooked to it, right?  
> > 
> > If not, consult your local magician for the secret
> -
> > you may have a source
> > of perpetual motion staring you in the face. 
> Apply
> > for a patent, quick!
> > 
> > Dick  (Electrical problems: I love them too, but
> > some are truly confusin',
> > even to me, and I've been chasing electrons around
> > the block for many, many
> > years).
> > 
> > -----Original Message-----
> > From: mailing-list-owner@xxxxxxxxxxxxxxxx
> > [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On
> > Behalf Of Tim Durrer
> > Sent: Friday, August 18, 2006 6:43 AM
> > To: mailing-list@xxxxxxxxxxxxxxxx
> > Subject: RE: IML: voltage limiter question
> > 
> > Thanks, for your reply Dick.
> >  So why am I getting the pulsating voltage on that
> > blue wire with the instrument cluster and voltage
> > limiter out of the car sitting on the floor of the
> > garage?
> > 
> > I love electrical problems!
> > 
> > Tim Durrer
> > 
> > 
> > --- Dick Benjamin <dickb@xxxxxxxxx> wrote:
> > 
> > > The pulsating voltage is correct, that is the
> way
> > > the voltage "limiter"
> > > works. Its job is to produce approximately 5
> volts
> > > (average) to operate the
> > > gauges, so it puts out 12 volts for about 42% of
> > the
> > > time, and 0 volts for
> > > 58% of the time, that is what makes your meter
> or
> > > test light show a variable
> > > voltage. Since the gauge display units are heat
> > > operated, they don't react
> > > quickly enough to be bothered by the pulsating
> > > voltage.  
> > > 
> > > The situation you describe is what it should be,
> > > except that when you put
> > > the dash back in, something connected to the
> > > pulsating voltage wire is
> > > coming in contact with bare metal, somehow.
> > > 
> > > Dick Benjamin
> > > 
> > > -----Original Message-----
> > > From: mailing-list-owner@xxxxxxxxxxxxxxxx
> > > [mailto:mailing-list-owner@xxxxxxxxxxxxxxxx] On
> > > Behalf Of Tim Durrer
> > > Sent: Thursday, August 17, 2006 5:08 PM
> > > To: mailing-list@xxxxxxxxxxxxxxxx
> > > Subject: Re: IML: voltage limiter question
> > > 
> > > Hello all, I am also having gauge problems on my
> > 73.
> > > I
> > > have read all the information on the website,
> > > studied
> > > the FSM and have concluded I also have a faulty
> > > voltage limiter. My problem started when the
> fuel
> > > gauge moved past full and the fuse protecting
> the
> > > gauge circuit blew. Upon replacing the fuse, it
> > blew
> > > again in a matter of seconds followed by a small
> > > puff
> > > of smoke out of the top of the dash. I have
> pulled
> > > the
> > > instrument panel completely out of the car and I
> > am
> > > awaiting the delivery of the part.
> > > 
> > > My question: The blue wire that was attached to
> > the
> > > back of the fuel gauge according to the FSM
> wiring
> > > diagram goes back to the fuel tank sending unit
> > > which
> > > is grounded. Why does my test light come on and
> > the
> > > light pulsate on this wire when I turn on the
> > > ignition
> > > switch? In reading the wiring diagram, current
> > > should
> > > flow from the limiter, through the gauge to this
> > > blue
> > > wire, to the sending unit and then to ground. If
> I
> > > am
> > > reading this right why am I getting voltage on
> > this
> > > wire if the dash is completely out of the car?
> > Could
> > > I
> > > have a short somewhere else? Incidentally, the
> > fuse
> > > now holds with instrument panel out of the car.
> > > 
> > > Help!
> > > 
> > > Tim Durer
> > > 73 Lebaron
> > > 
> > > --- stephen dilley <stephendilley@xxxxxxx>
> wrote:
> > > 
> > > > 
> > > > hi, i am back from a hot rod weekend here in
> in
> > > the
> > > > uk, whilst having 
> > > > problems with failed gauges and high reading
> oil
> > > > pressure- now smoke came a 
> > > > wafting out of the indicator stalk hole on my
> 60
> > > > crown. ??? still works 
> > > > mind. the car is a star and wish to keep it so
> > ...
> > > > am using it for a wedding on saturday just
> hope
> > > she
> > > > dont go up in flames !!! 
> > > > how do you get to the cluster??? for limiter?
> > > should
> > > > i just fit some remote 
> > > > modern gauges and leave well alone ? back to
> the
> > > > indicator smoke , wots all 
> > > > that about? also i have a power drain
> somewhere
> > > > which leaves a low glow on 
> > > > the handbrake on light. unable to locate
> source,
> 
=== message truncated ===


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 


-----------------  http://www.imperialclub.com  -----------------
This message was sent to you by the Imperial Mailing List. Please 
reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be 
shared with everyone. Private messages (and attachments) for the
Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx
To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm