My Ke70 Leaks Fuel When The Engine Stops..... Why?!!

[liamke70]

after the engine has been stopped for a little while it leaks abit of fuel. seems to stop after a while. seems to be coming from the fuel line with the fuel filter. might be coming from the hose to fuel line connection, do i just need to tighten the clamp? what would cause this??

 

Thank you :)

[Jono.C]

That would be the first thing I'd check.. See if the line has any cracks or splits in that could cause a leak too

[ke70dave]

Fuel tank pressurising perhaps. Crack the fuel filler open when it's parked to see if it stops.

[altezzaclub]

Mine used push the fuel backwards through the pump, through the filter and leave an air lock in the filter every now and then. The airlock collapsed overnight and the fuel came back, but occasionally if I fired it up after an hour or two it ran for a minute on the carb bowl full of fuel and died. It wouldn't suck fuel back along the line so I had to pull the line off at the steel pipe and put it in a jar of fuel...

 

Its all due to the fuel vapourising from the underbonnet heat when you park and pressure building up in the lines. My solution seems to be turning the fuel filter upside down so the bubbles can escape back to the tank without emptying the filter.

 

I expected the return line to handle all this, same as it should in your case. I've blown my return clean with compressed air but it didn't solve the problem.

 

Certainly check the fuel line for tightness and cracks, but if that is OK then make sure the return line is working.

[liamke70]

i havent had a chance to have a good look at it yet, but i think it might be the retune line as its only when the engine turns off and the fuel has no where to go, maybe making it seep out the weakest point, the hose-line clamp?

 

thank you all for your input