| From | Message |
| william morstein
12/31/2002 14:06:38 |
 Subject: fuel gauge
|
| Message: so yesterday the crt gauge says "low fuel", all the little squares are showing no gas and the little picture of a pump appears. only problem is that the tank was 3/4 full. i fill it up and the gauge still reads empty. any ideas on a fix? | |
| brmr 1/02/2003 07:44:06 | RE: fuel gauge | Message: well bill Ford Bonnie & Clyde call me yesterday and wanted to know if the factory was for sale/ |
| Dave 1/03/2003 14:53:10 | RE: fuel gauge | Message: I'm 99 % sure it's the sender unit. Order a new fuel gauge sender and see what happens. |
| Rick Harrison 1/03/2003 15:29:26 | RE: fuel gauge | Message: Both my Lagondas had bad sending units. The fix is to keep the tank full and keep aware of your mileage... In fact this summer with my gague showing 1/4 full I began to run out of gas and the closest station was 4 miles away... just like the oil burning for 8 days on Chanukah, the lord allowed the car to run (barely) and run out of gas coasting to the actual gas pump! A new holiday Lagonducah will be celebrated because of this miracle. |
| --- 1/08/2003 18:35:32 | RE: fuel gauge | Message: For those with inaccurate reading gauges, you can also adjust the value of the digital readout to correspond more accurately with the actual fuel level. In addition the point at which the gauge flashes to indicate low level is also adjustable. The level adjustment is the pot beside the digital readout. Whereas the flash level is another pot beside the clock readout (there are 4 pots close together arranged vertically - which control the flash level for the 4 flashable readouts). If replacing a sender unit in the tank, you have to adjust these anyway to compensate for slightly different readings between different units. Every digital readout has an adjustable pot beside it to calibrate it. And the 4 engine readouts each have an additional pot to adjust the flash level (arranged vertically near the clock). The Lagonda is such a simple car electrically and electronically. It's reputation for complexity is the most undeserved of any car I know. |
| Roger 1/09/2003 02:40:58 | Re: fuel gauge | Message: I thank the last sender for their contribution. Can they identify themselves as this is not apparent from their posting. |
| Roger Ivett 1/09/2003 03:23:48 | Re: fuel gauge | Message: Many thanks for the last contribution. Can you identify yourself as this is not clear from the posting. |
| william morstein 1/12/2003 08:29:58 | RE: fuel gauge | Message: thanks for the info. yesterday the gauge decided to resume operation. i guess i'll wait and see if it continues or decides to have a mind of its own before i order a replacement sending unit. |
| David Marks 3/17/2003 00:32:09 | RE: fuel gauge | Message: The sender is a simple unit with no moving parts. It acts on the principle of capacitance, two metal plates kept in very close proximity to each other but insulated from each other by plastic spacer washers. The varying fuel level alters the capacitance and therefore the signal. Over time, contaminants within the tank will bridge the gap and therefore give out incorrect signals. Remove the sender, carefully note the way it is assembled, if you have one, a digital camera will provide you with a quick easy reference record and then split the two plates. Using 1200 grit wet and dry, NO COARSER, clean the copper plates up and ensure there is no bridge between the plates when you reassemble. You will need to bolt the sender back into the tank for it and the CRT display to work correctly. I found out the hard way that with the sender out of the tank and not earthed correctly, the speedo and rev counter act very oddly indeed! Hope this helps David Marks. |
| David Marks 3/17/2003 00:34:34 | RE: fuel gauge | Message: Forgot to say, you may well need to alter the adjuster on the computer to compensate for the (hopefully) improved signal. David Marks. |
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