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Fuel leak


PeteTW
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It might well be seeping through the wires between strands, pretty hard to seal, you sometimes see a dedicated seal with solid wires potted for that reason.

On the same note the rotation sensors leak through the body, the transition between the centre steel core and teflon is almost impossible to seal.

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1 hour ago, Kiwi_Roy said:

It might well be seeping through the wires between strands, pretty hard to seal, you sometimes see a dedicated seal with solid wires potted for that reason.

On the same note the rotation sensors leak through the body, the transition between the centre steel core and teflon is almost impossible to seal.

True, this matter of leaking between the wires (JB Weld repaired "rotation"/timing sensor shown):

IMG_0302.JPG

 

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I did wonder if it was coming through the wires or whether it wasn’t sealing around the aluminium crush washer at the bottom. 
The wires have snapped off now with the weight of the joint going on and off. I will have one last attempt at trying to put some sealant around where the wires join the sensor and where sensor fits in the tube. Not sure if it will help if I block up the holes in the bottom of the sensor tube. I have managed to solder the wires back on.

If I had the problem with the crank sensor I would probably just buy a replacement as car ones are a 10th of the price (£10 for a 2 wire one or about £23 for a 3 wire one in UK). I don’t think the fuel sensors are as cheap and I don’t fancy anything Heath Robinson style in the tank.

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The fuel sensors have just doubled in price from approx $130 USD to $260 USD...they are scarce, but still available.

The leaking can also be solved by putting a thin layer of white grease or other on the threads...I battled a bit of a leak recently a few weeks ago doing the same, replacing the sensor, and the grease sealed it up perfectly...hasn't leaked a drop anywhere since installation or while/after riding.

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