Technical > Spud Miller's Cave

Fuel leaking from nozzle air bleed hole

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Merryknees:
Hi Guys
I am a complete novice to Enderle fuel injection and have a problem which I hope you can advise me on
After shutting the fuel off the motor shuts down as expected but methanol runs out of the air bleed hole on the injector nozzles. I have cleaned and checked for blockages in the injectors [all clear] and stripped the check valve which again is clean and functioning. It's a 2-3 psi as recommended by Good vibes.
I have not been able to check the leakdown As I am waiting on a tester arriving.

Topolino build by Ian Merryweather, on Flickr

dreracecar:
Does the fuel come out after the run during shut down or at from idle in the pits?? Plumbing looks correct however the vent in the cap (if thats all you are using) is too small for blown alch. and should be 1/2"

Merryknees:
Only leaks when the engine stops after it has shutdown in the pits. There is an air pressure type hissing noise for a short while after the engine stops which corresponds with the fuel expelled from the air bleed holes. Fuel cap is the only vent I am using.
Car only has 2 runs on it as yet.

ricardo1967:
Good looking mill!

dreracecar:
Are you shutting down the engine by pulling the fuel "shut-off" and letting the engine starve and run out of fuel before hitting the mag switch??? or are you killing the engine with just the magneto???

 You will have to change the vent system to at least a -8 line for blown alc, that little vent in the cap is way way too small

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