Fuel sender float

[138]

Investigating the "always empty" fuel problem I found that the float has come off the arm and it's still in the tank . Besides pinching a cork from a bottle of plonk, what can be used as a float? I was thinking of using a piece of 1" dowel (Mum's mop handle will become a little shorter). I will remove what is left of the original cork float when the tank is down to a low level .

[ardiesse]

It's easiest to buy a whole new sender assembly from Rare Spares. Petrol's less dense than water, so I doubt that a dowel floats in petrol. About the only thing I could suggest is balsa, sealed well with shellac. Or the polyurethane spray buoyancy/gap-filler, sprayed into a toilet roll tube.

Just a thought.

Rob

[Blacky]

Original ones seem to be cork, I had a NOS one in a box in EKMart and a rat or mouse ate the end out of the box and half the float

[In the Shed]

A brass float would work, although you would need to drill a hole and solder a small diameter copper tube through the middle to fiddle it up.

https://www.ebay.com.au/itm/33371628596 ... p_homepage

Or you could get some copper sheet and make your own? Alternatively try gauge works https://www.gaugeworks.com.au/

[Harv]

It's easiest to buy a whole new sender assembly from Rare Spares. Petrol's less dense than water, so I doubt that a dowel floats in petrol. About the only thing I could suggest is balsa, sealed well with shellac. Or the polyurethane spray buoyancy/gap-filler, sprayed into a toilet roll tube.

Fuel is around 740 kg/m³, so for some typical dried Aussie timbers:

Alpine ash: 650 kg/m³ (floats)
White cypress: 700 kg/m³ (floats... just)
Jarrah: 820 kg/m³ (sinks)
Sydney blue gum: 840 kg/m³ (sinks)
Blackbutt: 900 kg/m³ (sinks)
Brushbox: 900 kg/m³ (sinks)
Radiata pine: 545 kg/m³ (floats)
Balsa: 120-220 kg/m³ (floats)

That foam filler idea is clever.

Cheers,
Harv

[Blacky]

That foam filler idea is clever.

Cheers,
Harv

I have a sneaking suspicion the petrol would eat that stuff .......