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Petrol Guage Adjustment ?
Posted: Fri Apr 30, 2021 12:15 pm
by dennis
My fuel guage now permanently shows a reading midway between 0 and a 1/4 full irispective of whether the car battery is connected or not and when there is no petrol in either of the tank.. When petrol is added to either tank the meter does respond both for left and right tanks.
Is it posible to adjust the meter, say to 0 when there is no petrol in the tanks. ?
Re: Petrol Guage Adjustment ?
Posted: Fri Apr 30, 2021 2:51 pm
by cass3958
Is it sat at 0 to 1/4 on both tanks?
I ask as the sender unit can get clogged up with a varnish deposit from old fuel as it is just a piece of metal on the end of a float arm that moves across a coil of copper. If it is only one tank this might be your problem if it occurs on both tanks then it has to be the fuel gauge. I have a spare in the garage which I can pull out tomorrow and check if there is an adjustment you can make but as far as I know without looking there is none.
If it is your gauge rather than buying a new one you could always send it to
https://speedycables.com/ who will strip, clean and repair your original gauge. They also calibrate speedos as they did mine on my Lotus Seven for me. Highly recommended.
Re: Petrol Guage Adjustment ?
Posted: Fri Apr 30, 2021 5:18 pm
by dennis
Hi Rob,
Many thanks for your quick reply, the problem definitely is the fuel gauge itself. For a change this was a nice quick job to remove it from the panel.
Shaking it, the needle moves but still comes to rest midway between 0 and 1/4, I blew into the hole for the panel bulb and some dust came out, I don't know if this is the problem and as I cannot see any way to adjust or dismantle the gauge to clean on your suggestion I will contact Speedy Cables tomorrow and see if they can help. Hopefully open Saturday morning !
Thanks again
Dennis
Re: Petrol Guage Adjustment ?
Posted: Sat May 01, 2021 2:39 am
by Glyn Ruck
To dismantle gauge ~ Just bayonet off the front black ring. (i.e. turn ring until tabs line up with slots & withdraw). Slight warming with a hairdryer helps & maybe a slight nudge with a small flat tipped screwdriver. (tip covered with masking tape). No bending required but the glass antirattle seal will likely have deteriorated. I restored all my gauges. Click blue link in my signature & you will find my thread.