Fuel gauge sender for IIa

Wander

Expedition Leader
Is there a commonly availible sender/float that will work in a IIa tank? I just had my tank cleaned and sealed and found my sender is toast.

I know I can get replacements from the usual sources but if there is something I can find at Napa or similar that would be even better.
 

Wander

Expedition Leader
There $50 over here in the USA. That one is for the LWB tank, I'm not sure if it will work with the SWB tank (if it is long enough).
 

MojaveLR3

New member
Do your research first...

From TeriAnn's Website>

The sender unit

"A sender unit is a variable resistor whose resistance varies by the height of the float. Electricity flows from the battery, through the gauge, to the sender unit into ground and back to the battery.

Remembering that the gauge reads the amount of current flowing through it. The sender units limits the amount of current going through it by how high the float level is. The variable resister on the sender unit can be built to pass maximum OR minimum current when the float is in the empty position. It is important for gauges and sender units to be matched."

That last sentence is the Gotcha.
When I pulled mine out it was a mass of rust. No movement what-so-ever. I soaked it in a tub of muratic acid for about 3 hours an now it looks like a slightly used unit and works fine. Your milage may vary.
 

Wander

Expedition Leader
Funny you should mention that Steve, I took a longer look at my sender tonight when I was in the garage working on the IIa. It looked a mess for sure but I sprayed it down with some WD40 (only thing handy) and let it sit for a while. I then went to it with some sand paper and viola-it came out nicely an the float now pivots freely. The fuel pickup cleaned up even better. Money saved and lesson learned.:victory:
 

MojaveLR3

New member
Sweet!

WD40 is the duct tape of the chemical world.

Now get yourself a gallon of muratic acid from the home store and soak the sender for a bit. That will get thi inside cleaned up. Then rinse well with water. You'll be happy.

...and then you'll start finding all sorts of things to de-rust effortlessly. Also very good for cleaning out your rusted fuel tank.

Just be safe.
 

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