[Tigers] 3 gauges stopped working

[Teepen, Jere]

Fuses can also be bad and look as though they should be okay.  On older fuses
the fuse material can become dislodged inside the end cap and make
intermittent contact.

-----Original Message-----
From: tigers-bounces at autox.team.net [mailto:tigers-bounces at autox.team.net] On
Behalf Of Allan Ballard
Sent: Wednesday, July 28, 2010 8:48 AM
To: Tom Parker
Cc: Smit, Theo; tigers at autox.team.net
Subject: Re: [Tigers] 3 gauges stopped working

Mike, everyone,

voila!  :)

One side of fuse box needed "treatment" with a small file--now the gauges are
working again...

Thanks,

Allan


On Jul 28, 2010, at 10:38 AM, Tom Parker wrote:

> True. (I looked at the Mark 2 diagram). Grounding is simple to check, so's
voltage. I suspect but don't know, that a short in the stabilizer would
awaken
the smoke gods or blow the fuse.
>
> Anyhow, schedule the Chiropractor and take a look. A jumper clipped to
frame
ground and the back mounting stud of a gauge verifies the grounding, a meter
verifies the voltage stabilizer. There's always the possibility of multiple
failures (In electronics it's much more common than one might think...), so
take it one gauge at a time.
>
> God hunting, Allan!
>
> Tom
>
> On Wed, Jul 28, 2010 at 10:21 AM, Smit, Theo <Theo.Smit at dynastream.com>
wrote:
> The stabilizer only regulates the fuel and temperature gauges (to 10 volts
average); the tach has its own internal regulation. However, a failure of the
stabilizer that shorted the (green) circuit to ground would disable all three
gauges.
>
> Theo
>
> > -----Original Message-----
> > From: tigers-bounces at autox.team.net [mailto:tigers-
> > bounces at autox.team.net] On Behalf Of Tom Parker
> > Sent: July 28, 2010 8:03 AM
> > To: Allan Ballard
> > Cc: tigers at autox.team.net
> > Subject: Re: [Tigers] 3 gauges stopped working
> >
> > There's a voltage stabilizer behind the dash that's supposed to keep
> > the
> > voltage constant at @ 12v (see the service manual for the exact
> > voltage).
> > You might look at he voltage input on one of the failing gauges with a
> > volt
> > meter and follow the yellow brick road (wiring diagram) if the voltage
> > is
> > missing or out of spec.
> >
> > Tom