Power steering bleeding question | FerrariChat

Power steering bleeding question

Discussion in 'Technical Q&A' started by Smiles, Jul 10, 2019.

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  1. Smiles

    Smiles F1 World Champ Lifetime Rossa Owner

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    What is it about raising the front end, with tires off the ground, makes bleeding a power steering rack so effective?

    I did the equivalent of 20 turns lock to lock while driving. I then put it in the air and did the same and it's well bled and smooth again.

    Flaming River in my '61 Corvette, if it matters.

    Matt
     
    Smiles, Jul 10, 2019
    #1
  2. thorn

    thorn F1 Rookie Silver Subscribed

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    The off-the-ground element is mainly to make steering easily end-to-end, and without extra tire wear. In itself, it doesn't really have that much more effect on the bleed.
     
    thorn, Jul 13, 2019
    #2
  3. Smiles

    Smiles F1 World Champ Lifetime Rossa Owner

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    Thanks.

    I could swear it made a ton of difference to not have a load on the tires.

    I really wonder why.

    Matt
     
    Smiles, Jul 14, 2019
    #3
  4. tbakowsky

    tbakowsky Two Time F1 World Champ Consultant Professional Ferrari Technician

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    No cavitation of the fluid which can introduce air into the system. Cavitation occurs while trying to bleed the system with the full weight of the car on wheels with an empty system.
     
    tbakowsky, Jul 14, 2019
    #4
    Beetle and Red 27 like this.
  5. Smiles

    Smiles F1 World Champ Lifetime Rossa Owner

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    Thank you!!!

    Matt
     
    Smiles, Jul 14, 2019
    #5
  6. thorn

    thorn F1 Rookie Silver Subscribed

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    Was wondering/hoping if someone would chime in with a bit more technical input. Thanks for adding that bit, Tom. Wasn't aware of it, happy to learn more.
     
    thorn, Jul 16, 2019
    #6

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