bleeding the 355 cooling system little help please | FerrariChat
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bleeding the 355 cooling system little help please

Discussion in '348/355' started by alfonso, Feb 28, 2012.

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  1. alfonso

    alfonso Rookie

    Mar 21, 2004
    19
    #1 alfonso, Feb 28, 2012
    just finished major service all went well ,just would like to know the proper way to bleed the cooling system. started up fine water was circulating in the tank .the temp. was creeping up pas the 200 mark. fan finally went on . but temp. was still a little high. went around the block and cooled it down. but still not sure if i got all the air out. some help please. thanks alfonso
     
  2. 2NA

    2NA F1 World Champ
    Consultant Owner Professional Ferrari Technician

    Dec 29, 2006
    18,221
    Twin Cities
    Full Name:
    Tim Keseluk
    #2 2NA, Feb 28, 2012
    Last edited by a moderator: Sep 7, 2017
    The thermostat housing has a bleed screw in the top. Practically impossible to get at when the engine's hot. :(

    The sure-fire method for refilling the system involves a $120 tool, "Airlift".
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  3. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    13,567
    San Carlos, CA
    Full Name:
    Mitchell Le
    #3 yelcab, Feb 28, 2012
    The 355 cooling system has 2 small hoses from the coolant pipes and water pump to the coolant tank. These hoses act as self bleeding hoses to relieve the air in the system so that they go to the tank. You do not need to bleed the system, or at least I have never had to.

    If you are over heating, did you check 1) level of the coolant, 2) blockage in the hoses, 3) thermostat 4) radiator blockage, 5) fan not coming on or 6) thermo switches.
     

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