Harley wrote:
I'm fiddling around with some gauges for my car, they're the standard mini 3-clock set as found in later cars.
I want to understand how the fuel/temperature gauges work. The fuel gauge seems simple, it has a coil of wire in it that depending on the resistance imposed on it, it moves.
The temperature one seems the same, but it has two coils of wire and one of them is rigged into some sort of switch? The second coil is also connected into both gauges.
I'm thinking of removing the standard fuel / temp gauge, but if I do that what is the extra coil of thin wire for that seems somehow related to all the lighting in the instrument pack and both gauges?
Does anyone know what resistive figures the temp gauge works on?
do you have the type with plasic instead of real glass? made by nippon-seki?
the second coil is the voltage stabilizer, its build in, not like the seperate part fitted to the smith.
range should be: fuel: 280 ohms empty, 15 ohms full. water temp 60 ohms @100°C (sorry, no other data handy)
and just for fun: you can use the temp gauge as a fuel gauge. i tested it as i'm going to use a second tank with it's own sender
