86 Mondial 3.2 - buzzing noise related to oil pressure? | FerrariChat
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86 Mondial 3.2 - buzzing noise related to oil pressure?

Discussion in 'Mondial' started by Shortsha12, Jul 2, 2023.

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  1. Shortsha12

    Shortsha12 Rookie

    Jul 18, 2022
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    Full Name:
    Shawn Short
    #1 Shortsha12, Jul 2, 2023
    Loud buzzing noise starts 15 seconds after cold start as oil pressure increases. Seems to gradually fade as engine warms up.

    appears loudest at the two braised oil hoses on drivers side.

    what is causing this buzzing noise? Doesn’t not seem to be the oil type.

     
  2. Jeka

    Jeka Formula 3
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    Nov 20, 2010
    1,182
    Rotterdam
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    Johan
    #2 Jeka, Jul 3, 2023
    Maybe one of the two hoses is sitting against the inner wheel arch which amplifies the noise?
     
  3. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,962
    Isle of man- uk
    #3 mike32, Jul 3, 2023
    Sounds like the oil pressure relief valve is lifting, but you normally cannot hear it, might be an idea to have a look at it.
     
  4. theunissenguido

    theunissenguido F1 Rookie
    Owner Silver Subscribed

    Jan 21, 2004
    2,674
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    Guido
    #4 theunissenguido, Jul 3, 2023
    What sound when accelerating engine ? Does it stay the same or its gets louder ? I'm thinking it can be the intermediate gear bearings.
     
  5. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,962
    Isle of man- uk
    #5 mike32, Jul 3, 2023
    The oil relief valve will lift when cold, the fact it stops when the engine warms up makes sense as the oil is getting warmer
     
  6. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,962
    Isle of man- uk
    #6 mike32, Jul 14, 2023
    Any progress ?
     

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