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hello all, i am trying to finish a brunton stalker car my dad started. he has the gauges mounted and i am trying to find a sending level unit to put on the tank. any help of how to do it or pictures of those who have already done it would be greatly appreciated.

I ordered a unit from Wema. Their senders are standard 5-hole patterns, you can get the split under-ring to fasten them. Come in 0.5" increments. Pretty cheap and spiffy for our purposes.

http://www.wemausa.com/sensors/coverSen ... PcBvWdA4_Q

If you already have the gauge, make sure that the sender is compatible with it, i.e. 0=0 and full = 100%.

As far as how to mount them, it'll be obvious once you receive the sender. Some... (most?) expect to drop down over studs mounted to the tank, and typically include a cork gasket.

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Midlana book: Build this mid-engine Locost!, http://midlana.com/stuff/book/
Kimini book: Designing mid-engine cars using FWD drivetrains
Both available from https://www.lulu.com/

Like KB stated you need to know what the gauge can handle. Fuel level sending units are just potentimeters (resistance). You need to know what the gauge can accommodate. Most gauges can be calibrated to different inputs (0-90 ohms, 240-33 ohms, 0-30 ohms, etc.) Make sure the gauge is compatible with the sensor.
Roy

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Build log http://www.locostusa.com/forums/viewtopic.php?t=16510

ok thanks guys. ill get my ohm meter out tomorrow and check. just off the top of my head (so i don't have to go out in the cold) its a auto meter .reads empty-full but i don't know what the values are.

questions,

1. are you trying to mount a sender unit on a curved surface? if so try moon equipment

2. as it's an autometer guage, you will have to run two, thats 2 wires to the sender, one for the calibration and a ground, all the way from the guage to the sender, do not think that a local ground at the guage and another at the sender will do because it won't.

3. an additional power wire, ignition switched will be needed for the guage power.

4. a lighting wire from the light switch to the bulb holder is also required and will need an additional ground.

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ok i didnt get a chance to get a chance for a ohms reading today but i did find out that he has the gauge all wired up and has run a single wire to the back of the car to the tank area.tomorrow ill get the info on the gauge and let you guys know.

well guys i worked on the car all day. and low and behold i found a brand new sending unit on the top shelf. my dad before he passed from brain cancer would go out and clean up the shop so finding things are some what dificult at times.i did check the ohms mentioned previuosly and it was right on. what i am going to have to do is find a aluminum bung to weld on to the spun tank.

Use a hole-saw and drill a hole slightly larger than the sensor mounting flange, then weld in a segment of tubing, just enough to rise up so you can weld a flat plate to it in order to attach the sensor to it. That's what I'd do.

_________________
Midlana book: Build this mid-engine Locost!, http://midlana.com/stuff/book/
Kimini book: Designing mid-engine cars using FWD drivetrains
Both available from https://www.lulu.com/

i will have to have someone do it. i cant weld aluminum yet