gauges

I have a new problem with my fuel and temp gauges, I assume its a
voltage regulator problem but as I have already bought 2 this year I
thought I should check other ideas before I pay out again.

When I first start the engine the gauges read fine (apart from
intermitant earthing problems of course) but after about 5-10 minutes
both gauges drop to zero. Turning off the ignitition and then
restarting seems to reset the cycle. I haven't been able to catch the
problem with the panel open so I can check the voltage, that's my next
move after this post but I'd appreciate any clues I can get before I
scratch the newly painted panel again.

The vehicle is a 1963 SIIa petrol with -ve earth

thanks

<[email protected]> wrote in message
news:[email protected]...
> I have a new problem with my fuel and temp gauges, I assume its a
> voltage regulator problem but as I have already bought 2 this year I
> thought I should check other ideas before I pay out again.
>
> When I first start the engine the gauges read fine (apart from
> intermitant earthing problems of course) but after about 5-10 minutes
> both gauges drop to zero. Turning off the ignitition and then
> restarting seems to reset the cycle. I haven't been able to catch the
> problem with the panel open so I can check the voltage, that's my next
> move after this post but I'd appreciate any clues I can get before I
> scratch the newly painted panel again.
>
> The vehicle is a 1963 SIIa petrol with -ve earth
>
> thanks

Sounds like an intermittant short or an open circuit. Possibly in the
ignition switch.
TonyB
>

On or around Mon, 28 Nov 2005 20:16:58 +0000 (UTC), "TonyB"
<[email protected]> enlightened us thusly:

>
><[email protected]> wrote in message
>news:[email protected]...
>> I have a new problem with my fuel and temp gauges, I assume its a
>> voltage regulator problem but as I have already bought 2 this year I
>> thought I should check other ideas before I pay out again.
>>
>> When I first start the engine the gauges read fine (apart from
>> intermitant earthing problems of course) but after about 5-10 minutes
>> both gauges drop to zero. Turning off the ignitition and then
>> restarting seems to reset the cycle. I haven't been able to catch the
>> problem with the panel open so I can check the voltage, that's my next
>> move after this post but I'd appreciate any clues I can get before I
>> scratch the newly painted panel again.
>>
>> The vehicle is a 1963 SIIa petrol with -ve earth
>>
>> thanks
>
>Sounds like an intermittant short or an open circuit. Possibly in the
>ignition switch.

or the supply to the gauges.