Tank float doesn't float....

coyotegray

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491
10
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Location
Oklahoma City
Tank float doesn't float.... **Does Now**

While troubleshooting the aux fuel system on my MEP-003a today I discovered several problems. One is that if I remove the float switch from the tank and raise or lower the float it works fine. But it will not rise in the tank.

Anyone ever run into a float losing its buoyancy..?
 
Last edited:

det rebel

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east texas
yea its got a pin hole in it somewhere or it has filled with fuel best way i know of is get you a something like a clear cup fill it with gas then stick the float in real slowly and look for bubbles
 

coyotegray

Member
491
10
18
Location
Oklahoma City
The float is solid but saturated with fuel so it sinks..
Anyone have this problem before..?

Delks wants $120 or so for a new unit so I would like to find a way to fix this one...

ETA: Idea. Im going to make a new one out of balsa wood and coat it with epoxy...
 
Last edited:
The float is solid but saturated with fuel so it sinks..
Anyone have this problem before..?

Delks wants $120 or so for a new unit... so I would like to find a way to fix this one...


I've never tried this before but "therotically" it might work: Try boiling and/or baking?

First, does it sink in a bucket of water? if so, it is most likely saturated with water. If it floats, it is saturated with diesel or some oil.

Boiling (with a weight to hold it under water) might drive off the oils
Baking at a low temperature will drive off the moisture.
Then seal it up with a substance not affected by fuel.

Just an idea. (I'm full of 'em, some of them actually have worked!)

ETA: Idea. Im going to make a new one out of balsa wood and coat it with epoxy...
If you do this, cut the old one apart and see if/where the magnet inside. Float switches I am familiar with have a magnet inside that closes the switch when it moves up. Other than that, your idea is feasible.

Good Luck
 
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