For 1960 though 1963, the best way to fix this is to bypass the original voltage limiter and install a new one. The new one is external, does not fail, and attaches to the back of the cluster. The gauges are hooked together the same way, except the input and output terminals (if my memory serves correctly) on the temperature gauge will be left bare.
I haven't had to do this for a long time, but I was able to by the voltage limiter at the local Chrysler parts counter. I suspect that someone else here has done this more recently, and will have a current source/part number for this item. I am certain that it would be still available.
Fixing the old one or buying another used gauge will result in another failure. If the points lock shut, the full 12 volts pegs the gauges, and will burn them ALL out before you can get them disconnected.
Paul W.
-----Original Message-----
From: Lib596@xxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Mon, 1 May 2006 18:54:13 EDT
Subject: IML: Instrument panel thoughts
Hi Guys,
A few days ago the resistor in my temp. guage burned out. As a result I have lost the 5v feed to the temp, oil and fuel guages so none of them work.
I am getting a replacement temp guage from from Bob H. but just out of interest I am wondering if anyone has ever rewound the original resistor? It looks fiddly but possible.
I am also thinking about whether you could use a standard ballast resistor as a bypass for the original unit? This would supply 6v instead of five but I doubt that it would be enough to damage the instruments. Maybe this is a stupid idea. Would one additional volt harm the guages? Would it affect the readings? I invite any competent car electricians to tell me if I am wrong and why. On the other hand, if it is possible, it may offer an inexpensive alternative repair for other Imperial owners with the same problem.
Best wishes,
Tony V.
Back to the Home of the Forward Look Network