Fuel warning light

[BigHW]

Finally got the Stag back together following a complete refurbishment and the Fuel Warning Light is on continuously. Checked the three connections on the tank sender unit and they are good. When you pull the right hand connector off the fuel warning light goes off. Tank is full of fuel and the gauge shows 3/4 full (it was never very accurate). We had the fuel tank out to repaint but didn't check or remove the fuel tank sender unit and float. Any suggestions? If the suggestion is to replace the sender unit and float, is there a special tool you can buy to turn and remove the Locking Ring as no doubt that will be tight? Thanks

[mallardstag]

Check you have the wires to the sender connected the right way round. I remove the sender clamp ring using a flat bladed screwdriver against the tags and lightly tapping each in turn to rotate the clamp ring.

[richardthestag]

Either a fault in the sender unit or you have the two coloured wires the wrong way around.

[sujitroy]

+1 on the wires. I went through the same thing a few weeks back. if the light if off the unit is US.

[sujitroy]

I correct my self. if the low fuel light in not working, the gauge can still work.
Sujit

[BigHW]

Thanks to everyone for their comments. Checked wiring and all as it was before and finally received a new sender unit and float. Checked this and sure enough it worked fine. I was pleasantly surprised that the old unit came out easily and so the whole job took about 10 minutes. The fuel gauge still only shows just over half full when the tank is completely full but you get used to that

[mallardstag]

You can adjust the gauge position at full tank by bending the float wire appropriately.

[Paulfrazer]

An old thread I know, but it may be of interest that the floats sold for Minis (proper ones not BMW) fit perfectly and at the £7.05 including postage I paid they are a lot cheaper than replacing the whole unit

[jbuckl]

You can adjust the gauge position at full tank by bending the float wire appropriately.

100%

if only new parts were some what close to what is needed

[torque2me]

An old thread I know, but it may be of interest that the floats sold for Minis (proper ones not BMW) fit perfectly and at the £7.05 including postage I paid they are a lot cheaper than replacing the whole unit

Is that appertaining to BL build of Mini? If so, who was the supplier?
Kev

[Paulfrazer]

Yes, the Austin etc Mini. The part number seems to be JLM772. If you search for that on Ebay you will find a selection of them. I went for the cheapest as I expect they are all sourced from the same place.

Edit - If you Google Smiths JLM772 there are loads of them listed. many a bit cheaper than the Ebay ones

[DJT]

I would add a word of caution. The last fuel system related products I bought from eBay were fuel filters. They looked the same as ones from reputable suppliers, but much cheaper. The internals dissolved within a couple of months. Never again!

[Paulfrazer]

The problem is that the floats you can buy separately are possibly the same as those supplied with the new entire units. I will keep an eye on it but fortunately it is easy to see if the replacement starts to leak.