Bob:
Something on the red/white circuit is drawing too much current.
This is why the fuse blows and why you burned up rheostats.
Since a short to ground on the ground side of any lamp will not
make it draw more current, you have a couple of possibilities:
1. Lamps are too high a wattage, so collectively they draw too
much current.
2. One or more lamps are shorted - removing the offending lamp
will make the current drop dramatically
3. A short to ground on one of the red/white wires between the
rheostat and the lamps.
A good place to start would be to replace any bulbs that are not
working, or are very dim. Check the wattage of the existing lamps while
you are at it.
Vance
Vance Navarrette
Cogito Ergo Zoom
I think, therefore I go fast
-----Original Message-----
From: 6pack-bounces+vance.navarrette=intel.com@autox.team.net
[mailto:6pack-bounces+vance.navarrette=intel.com@autox.team.net] On
Behalf Of Bob
Sent: Thursday, May 08, 2008 11:20 AM
To: John Mitchell; 6-Pack; triumphs@autox.team.net
Subject: Re: [6pack] Ruining rheostats
Electrical diagram I have shows 8 dashboard lamps wired to (red wire)
rheostat and wire (red/white) to fuse 12V.
Will fuse blow if you connect red to red/white?
Rheostat function is to vary current/voltage to lamps thereby vary light
intensity.
This should not by itself draw more current...blow fuse and burn
rheostat.
Seems more like where the wires belong on the rheostat itself would be
the
issue.
Regards,
Bob
----- Original Message -----
From: "John Mitchell" <jmitch@snet.net>
To: "6-Pack" <6pack@autox.team.net>; <triumphs@autox.team.net>
Sent: Thursday, May 08, 2008 3:51 AM
Subject: [6pack] Ruining rheostats
> I've gone thru 3 rheostats for the dash lights in the last year,
so
> I jumpered the wires last night. It lasted several minutes before the
> fuse blew. What in the red to red/white circuit should I be looking
for
> as the culprit? Thanks very much, John Mitchell 76 TR6
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