Gas cap issues

by Steve Sickle

on Wednesday

    Hey there folks, I'm having issues with my gas caps leaking on my 701. It came with what I assume were stock caps from zenith with the cane shaped snorkel but could not stop them from leaking even with new gaskets. I bought some new ones, they're the same style base just no snorkel.

     The gas comes between the top of the tank neck and the cap gasket. I noticed that the rubber gaskets were distorting the first time I took off the caps so I replaced them with cork but they still leak. How have any of you dealt with this issue? 

          Thanks,  Steve

  • up

    Jim and Amelia Isaacs

    Hi Steve,

    The Zenith vented caps leak fuel on my 701 every time I fly with more than a half load of fuel. At a half-tank or below all my fuel usually stays in the tank. The design of the 701 fuel vent system- which consists of these caps- is simple and darn near maintenance-free but wing stains are the tradeoff. Some have added a curved ram air tube to the cap to address the uneven left/right tank fuel consumption issue, maybe someone who has will weigh in at let you know if that helped reduce the seepage down the wing. Me I just grab a bottle of my favorite spray cleaner and a soft rag and wipe down those fuel trails after the flight to minimize the inevitable paint stain.

    1

    yesterday

    • up

      Cristian Ernesto de Azevedo

      On the fuel caps of my 701, I installed a snorkel in the shape of 
      a cane and sealed the internal holes with solder, and the leak 
      above the wings stopped.

      18 hours ago