REFLECTOR: Unbalanced fuel flow in flight

[Richard J. Gentil]

Friday I completed my second test flight.  I found that all the fuel drained from the right side and none from the left while on the one hour flight. (I actually cut the flight short due to this.)

When I landed I verified with my fuel stick that all the fuel did co e from the right tank. 

For troubleshooting: 

1) I removed the line from the left tank to the sump tank and verified that fuel did flow freely from the left tank. 

2) Removed the vent line from the left tank and tested the line in the direction of the left tank and in the direction to the vent/overflow block at the top of my firewall using compressed air. 

3) I checked the check valve for the air for correct operation in both directions and verified it was installed in the correct direction for air to enter and that fuel would not vent into the cabin. 

4) Verified the overflow line was clear by using compressed air. 

I know the picture is hard to follow but this is the fuel system:

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Richard

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