Which way in does the sender unit go?

make sure its making a good contact with the back of the dials...

 

Hi Alpha981 I am looking at this later and will clean everything at the back of the dials and put it back together. Just a bit confused that it seemed to be working fine and then not

 

Ive had issues with my replacement showing some random values... its a common point of failure i believe, especially if you can eliminate other items if already replaced.

 

You dont know what the correct values are do you ? I have tested the sender and getting a reading of .081 when the floats in the empty position and .013 in the full position ( if i have the multimeter set on the right ohm dial setting)

 

so youve wired it up and moved it in your hand and it works and when you wire it up and fit it into the tank its not working? do you have fuel in the tank or is it empty? may not have enough in there for it to read?

 

From memory the resistance should be 70 (ish) ohms and 0 at each end...

 

Hi Brucieboy the sender is back out of the tank, tested with a multimeter and these are the readings . Wired it back up to the gauge out of the tank but no reading
I am probably missing something simple .

 

that would suggest the fault is with the wiring between the sender and gauge or the gauge is at fault. joys of joys! lol

 

Ive taken the sender unit back

It could it be the vibrator or the gauge itself then as i have continuity on the wire from the sender to the gauge LOL

 

Lots of useful info about fuel gauges and senders:
http://www.speedyjim.net/htm/fuel_ga.htm

 

Cheers for that

 

Best of luck with gauge and senders I've been at mine for months on and off grrrrrrrrr

 

Cheers sat in the cab now scratching my head Lol

 

Think I've found the problem
Can this be soldered or is it a new gauge??
If you can see just underneath the face of the gauge there is a thin wire filament that's broken and I think that's the problem.
If it can be soldered could I use a slightly thicker wire ?

 

I'd give it a go.
I'm fairly sure @davidoft & @1973daisey repaired one of those.

 

I've re-soldered the wire back onto the terminal tonight , will test it tomorrow.
Fingers xd I will have sorted it

 

We fixed one at techenders, thicker wire may cause the gauge to read differently but you can adjust the gauge to compensate

 

A big problem with these senders is the ground to the body . The sender will work fine with it laying on the tank for instance but , when you instal it it wont . The wire inside the top is no good ,,,As ive shown in the link . You take the old top and the new bottom , with the old float . And your problem will go away .. Untill then your just fixing things that arent broken ,,,,
And these senders will leak on fill up . Your guage wire is broken . But thats another story .
The quality is window dressing , they should sell just a rebuild kit .a wafer thing . For Five bucks , But that wouldnt make money sense ,,,

 

Cheers Davidoft if this doesn't work I will try a thicker Wire.
Just wondering now if I did put the sender in the wrong way as it was showing over half a tank all the way from Melton Mowbray to the lakes and then after a couple of days it must have burnt the gauge wire out(if that's possible )

 

I

believe its resistance . So the current is micro minimal . That wouldnt burn up a wire . Correct me if im wrong