Fuel Tank Relief Valve Plays a Tune! | FerrariChat

Fuel Tank Relief Valve Plays a Tune!

Discussion in 'Technical Q&A' started by wda24729, Apr 20, 2018.

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  1. wda24729

    wda24729 Formula 3

    Sep 22, 2014
    1,000
    Devon, UK
    Full Name:
    Graham
    #1 wda24729, Apr 20, 2018
    Hi - Just taken my TR out for a run and noticed a strange noise from the right side inner wing. Released the fuel cap and it stopped so guessed it was my relief valve.

    So quickly stripped out but when the valve is on its own and blown through, it makes no noise. But once I connect the smaller connection piece, it plays the tune!

    The valve itself has resistance in the outward direction and little resistance in the direction towards the tank. Im guessing this is correct, however I was concerned about the amount of pressure in the tank when opening the cap.

    Any ideas why its playing the tune?

    No tune when blowing through

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    Tune now occurring when connecting smaller pipe and blowing!

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