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Has Anyone Retrofitted A Fuel Light To A Classic Mini?

engine electrical

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#1 KiwiMini77


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Posted 22 June 2020 - 01:08 PM

Hi people


My little car is a 77 Mk4 roundnose with a carburettored 1275cc power plant.


Being that my fuel gauge (like a lot of Minis) hangs around three quarters for ages and then dives for 'E' like there's a hole in the tank, it sometimes generates a touch of anxiety as to how much is actually in there when I glance down and see the needle has moved a long way from where I last saw it.


Just to add a bit of spice to life, my milometer does not consider that "consistency" is in its job description either and I have a recipe for the odd pause on the side of the road while I give it the contents of the four litre can I carry with me.  For the same 10.4km trip, my odo can advance 4, 6, 6.8 or 8.5km......or indeed a few others in between, but that one I have a solution for.


What I am wondering is, has anyone in the forum ever retrofitted a tank sender with a fuel light?  If so, what did you use?  If you rigged up a fuel light another way, I'd be interested as well.

Many thanks



#2 Moke Spider

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Posted 22 June 2020 - 07:51 PM

I haven't done one, but Spiyda Design do have a kit available, however it uses the existing sender;-




From your description here, it appears you may have a sender issue. They are not expensive or difficult to replace, maybe try that first ?


I think just about any retrofit Low Fuel Warning System would use the vehicle's existing sender.


#3 InnoCooperExport


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Posted 22 June 2020 - 08:04 PM

Not wanting to sound like an old bore. But Innocenti's had them from the factory, it was part of the sender unit. If you can find a sender unit it should be easy enough to retrofit with an extra lamp on the dash. Bear in mind though that the sender unit was calibrated for Jaeger or Veglia gauges (they came in each variety) so might not read correctly for a standard Smiths fuel gauge. 

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