Mysterious Oil Leak, Left Side | FerrariChat
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Mysterious Oil Leak, Left Side

Discussion in '360/430' started by RossoF430, Sep 27, 2025.

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  1. RossoF430

    RossoF430 Karting

    Jun 6, 2022
    143
    Full Name:
    Clint
    #1 RossoF430, Sep 27, 2025
    I noticed recently that my F430 has leaked some motor oil on the left side of the engine, opposite the oil filter. The car sat for 3 weeks but was leak free before. Nothing obvious that I can see from the top of the engine and after removing the rear diffuser so I will have to remove the other covers underneath for further inspection. Any area I should be looking at that's a known for leaks ?
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  2. robst

    robst Karting

    Mar 9, 2024
    118
    Houston
    Full Name:
    Rob
    #2 robst, Sep 27, 2025
    Valve covers
     
  3. Extreme1

    Extreme1 Formula 3

    Jun 27, 2017
    1,444
    Santa Clarita, CA
    #3 Extreme1, Sep 28, 2025 at 7:36 AM
    I’m thinking valve covers also. See if you can snug up the valve cover bolts. That may stop the leak.
     
  4. omega_jeff

    omega_jeff Rookie

    Oct 20, 2024
    19
    Bay Area, CA
    #4 omega_jeff, Sep 29, 2025 at 12:02 PM
    What would be the best way to snug up the bolts? Break them loose first and then torque-to-spec? Or just give them an extra ugga-dugga?
     
  5. mike32

    mike32 F1 Veteran

    May 13, 2016
    6,011
    Isle of man- uk
    #5 mike32, Sep 29, 2025 at 12:17 PM
    The rocker joint is only £23 each, do it right .
     
  6. Extreme1

    Extreme1 Formula 3

    Jun 27, 2017
    1,444
    Santa Clarita, CA
    #6 Extreme1, Oct 3, 2025 at 8:49 AM
    They are probably loose already, that might be what’s causing the leak. I just snugged mine up. I got about 1/2 turn on most of them. To replace the gaskets is time consuming and costly.
     

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