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Fuel leak in front of rear passenger tire.

Discussion in 'Mondial' started by DocBasilone, May 3, 2021.

  1. DocBasilone

    DocBasilone Karting

    Apr 15, 2020
    97
    NW PA
    Car ran great yesterday Strong odor of gas coming from garage after parking it. Fuel dripping from plate just in front of passenger rear wheel. Had tank repaired 1yr prior due to leak. Interesting was no pressure when opening gas’s cap about hour later.


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  3. FamilyCar

    FamilyCar Formula Junior
    Rossa Subscribed

    Sep 26, 2007
    540
    Seattle, Wa
    Full Name:
    Peter Goodall
    Isn't that about where the fuel filter is?
     
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  4. sidtx

    sidtx F1 Rookie
    Rossa Subscribed Owner

    Feb 9, 2014
    4,107
    Frisco, Tx
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    Sid
    There's a fuel tank on each side of the car, with a hose/pipe connecting the 2.

    Also, on the passenger side are numerous fuel lines -- from the tank to various devices such as pump, filter, accumulator, and eventually the fuel distributor. Those lines on my car started weeping -- so we replace them all. They are fairly easy to get to, and you should swap them out asap.

    Sid
     
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  5. mike32

    mike32 F1 Rookie

    May 13, 2016
    3,381
    Uk
    If you start removing any of the fittings by the pump or filter, be sure to mark the way they come out in case of any non return valves
     
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  6. theunissenguido

    theunissenguido Formula 3
    Silver Subscribed Owner

    Jan 21, 2004
    1,702
    Argent/Brasil
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    Guido
    I'm afraid that repair you did before is leaking again...
     
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  8. DocBasilone

    DocBasilone Karting

    Apr 15, 2020
    97
    NW PA
    Other side. But that thought crossed my mind


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  9. mike32

    mike32 F1 Rookie

    May 13, 2016
    3,381
    Uk
    If i recall correctly the accumulator has a tell tail hole which leaks fuel if the diaphragm fails, that is behind the rear right wheel along with the filter and pump
     
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  10. spicedriver

    spicedriver F1 Rookie

    Feb 1, 2011
    2,656
    I believe that the EU models would just leak on the ground, but the US models have a return line that goes back to the fuel tank. So if the accumulator leaks on a US model, you wouldn't have any fuel leaking on the ground. That is the spot in front of the right rear tire though. Accumulator, and fuel filter, and several fuel line connections are located there. The fuel tanks are closer to the center of the car.
     
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  11. mike32

    mike32 F1 Rookie

    May 13, 2016
    3,381
    Uk
    If the diaphragm is punctured it leaks out the hole, nothing to do with the return line. An accumulator is teed into a line to maintain a min pressure to assist hot starts.
     
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  13. Mule

    Mule F1 Rookie
    Rossa Subscribed Owner

    Jun 25, 2003
    3,529
    Alaska
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    Mule
    My 328 did that a few years ago. It was the rubber hose under the tanks. The colder weather and driving made them seep, but they were original and about ready to burst. There are two hoses about 5 inches long at the bottom of each tank that connect them to the metal crossover pipe. They are weird metric, and I could not find the correct fuel rated one locally, so ended up with Ferrari parts. The center metal crossover pipe is not always centered, so one hose may be longer than the other or you can fudge the pipe to center.
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  14. spicedriver

    spicedriver F1 Rookie

    Feb 1, 2011
    2,656
    Top pic is for US Models. Reference #16 is the return line from the accumulator to the fuel tank. So if the accumulator fails, fuel doesn't just leak out of the hole. Lower pic is for EU Models.

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  15. mike32

    mike32 F1 Rookie

    May 13, 2016
    3,381
    Uk
    Thats a new one on me
     
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