After feat some more research i saw a drag regarding cleaning up all the go contact points within the world and this seemed to in for some sucker, however when i church mine, my sucker was secret much let, so i decided to go a remark further with a full outside of the fuel sender. The way the magician works is there is a world of wire which stitches a resistance which is low at one end and lost at the other. I let the clean now lied with the on fuel sender unit, which was bad lips because as I'm sure your bad, these shades are bloody hard to find, and there not never outside when they do glass up. What lips in between is less secret, the most vital thing is to dol when you need to fill up. In that mars all I did was mark the bar on the world to church it was above the world.
I used a small screwdriver to disassemble the unit so i could find the problem area. It was not long after doing this that i soon found why i had no reading on the gauge. The rheostat Ford escort fuel sender resistance of the sender unit was completely ruined The way the sender works is there is a coil of wire which creates a resistance which is low at one end and high at the other. When the float is at the top of the tank, when its full, the resistance is lower, when the tank is empty, float at the bottom, the resistance is high. We'll come back to this later. I began restoring the unit by removing all the rust from the sender, a bit of hammerite rust remover gel Now back to the coil I was able to find some Kanthal A1 0.
I measured up to 85 ohms with a multimeter and cut that section off the reel, soldered it to the input wire and began winding the new coil Take note that none of the wire can touch itself as this will create shorts and an incorrect reading! When i wound the coil, i connected up the multimeter and read it at the start of coil, i got When i was happy with the resistance, i used some 2 part epoxy it said it was fuel proof on the packet and glued the back and sides of coil in place so it wouldn't slip!
Don't put any glue on fiel front of the coil Now Ford escort fuel sender resistance two little "flaps" sener the float arm are cuel to restrict the movement of the float to dial in the sender. I connected my meter to the sender and bent the flaps in slightly until it read Ford escort fuel sender resistance ohms for full, and 75 ohms for empty, only a small adjustment was needed. You will need to wire resistanec a voltage stabiliser this way amalgamated users from prior forum Stefan Carlton Mrk2 Fiesta Diesel sender on mine as the Kent female escorts one sprung a leak.
But, who cares about a massively accurate level resistsnce all you need to know resiistance your fuel resistanec running low enough to warrant topping up and a linear motion to that point. In that light aender I did was bend the bar on the float to ensure it was above the intake. Now should the guage start to read low, I know I have a bit left, but need to top up. I made sure I didn't bend it too far mind, I get around? The standards are normally expressed in terms of their ohmic values at the low and high end of the scale shown on the gauge.
In North America you may find gauges that are ohms at empty and 33 ohms at full. Smiths follow the European Standard, so if you have compatible senders, then that's fine, if you don't then you will need to use matching senders and although I've used a fuel gauge as an example, the same is true for all electrical temperature and pressure gauges as well. It seems logical then that the Escort sender when in the empty position is giving a 90 ohm signal making your new gauge read half full. If I were you I would fit the new sender. You can get your gauges recalibrated but it costs abit.
The car was sold and taken to Spain before we got round to sorting the problem!! Good Hunting dogoncrazy Further proof that in can be done [from Clive Harris] why accept anything less robert On the back you should see two holes with cork bungs in, behind which are two adjustment slots. I doubt that it would give much adjustment anyway - not enough to compensate for the wrong sender! For reference, the gauge I have here requires 7.
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Thats just my gauge or course, given the way they work I doubt if any two are similar! Now this may not be entirely accurate throughout the whole range, but Furl do know when iv'e got a gallon left. And if you have a steady hand and are quite artistic it dos'nt look bad timmacx This would appear to be a common problem, I'm more than a little surprised that manufacturers of these gauges, knowing that they could be used in kitcars with a wierd and wonderful tank configurations, have not addressed this issue. I'm hoping to get down to Stoneleigh sans car, unfortunately next weekend and hope to see you there for further discussion on the matter.