Pagoda SL Group

W113 Pagoda SL Group => Electrical and Instruments => Topic started by: Thierry du Laos on March 16, 2020, 10:34:36

Title: W113 Fuel gauge sensor
Post by: Thierry du Laos on March 16, 2020, 10:34:36

Hi everybody.
Would any one know what is the wire material used on the fuel sensor as resistor. To meet the empty 83 ohms required for the indicator?
Thanks.
Thierry from Laos

Title: Re: W113 Fuel gauge sensor
Post by: WRe on March 16, 2020, 10:45:25

Hi,
there had been some threads, e.g. https://www.sl113.org/forums/index.php?topic=29859.msg216339#msg216339 and in particular http://www.hehlhans.de/tipp19.htm.
...WRe

Title: Re: W113 Fuel gauge sensor
Post by: Thierry du Laos on March 17, 2020, 07:46:05

Thanks, I try to translate and find out! I think they give the resistance value, not the material....
I'll take more time to read later.
Thanks again
Thierry

Title: Re: W113 Fuel gauge sensor
Post by: WRe on March 17, 2020, 08:25:26

Hi Thierry,
the described wires are made from a Nickel-Cobalt-alloying called NiCr6015. Details see here: https://pauly-stahlhandel.com/en/din-en/nicr6015.
Attached a datsheet of the product used, it's from Isabellenhütte called Isa-Chrom 60: https://www.isabellenhuette.de/en/precision-alloys/products/more-alloys/.
...WRe

Title: Re: W113 Fuel gauge sensor
Post by: Thierry du Laos on March 18, 2020, 02:20:27

 :(  well well...

Maybe missing now the diameter after so good info, and I will try to find that in a shop around, hopefully????
Thanks very much.
Thierry from Laos

Title: Re: W113 Fuel gauge sensor
Post by: Benz Dr. on March 18, 2020, 02:31:09

That wire is very delicate and can break very easily. If there was a way to refurbish those sending units it could be a good thing for everyone.

Title: Re: W113 Fuel gauge sensor
Post by: Thierry du Laos on March 18, 2020, 03:06:56

Just got all the info:

The wire is made of nickel-chrome, lengh approx. 45 cm. 170 ohms/m, and 0,09 mm diameter.

Lets find some now??????

Thierry from Laos

Title: Re: W113 Fuel gauge sensor
Post by: Thierry du Laos on March 23, 2020, 04:32:47

Just for info to ALL, these gauges were used also on PORSCHE 911, and maybe VW.
I have a friend, former PORSCHE dealer that might be able to find some left in his garage for me! Lets see...
Take care. Thierry from Laos.

Title: Re: W113 Fuel gauge sensor
Post by: mnahon on March 29, 2020, 14:06:09

Thierry,

You can find this wire pretty easily, for example on Amazon. Search for Nichrome 39AWG wire.

Meyer