360 serious corrosion problem in the rear lower wishbones | FerrariChat

360 serious corrosion problem in the rear lower wishbones

Discussion in 'Technical Q&A' started by Chopperman, May 18, 2019.

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  1. Chopperman

    Chopperman Karting

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    It has taken 18 hours to get the 8 bolts out that hold the rear lower wishbones out to renew the lower ball joints. I don't mean drinking coffee and chatting, I mean attacking those bolts. One bolt took from yesterday afternoon to this afternoon.
    When I did get them out, the corrosion is very bad. How bad? I'm an ex Aircraft fitter trained at British Aerospace so I am used to repairing corroded aluminium. If this was an aircraft, with the corrosion in the wing spar, it would be a major repair.
    The holes are full of powdered aluminium.
    Does anyone know of any bushes that can be fitted? Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login Image Unavailable, Please Login
     
    Chopperman, May 18, 2019
    #1
  2. thorn

    thorn F1 Rookie Silver Subscribed

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    I'd cut them off flush, then remove the bushings with a press.
     
    thorn, May 18, 2019
    #2
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  3. f355spider

    f355spider F1 World Champ Owner Rossa Subscribed

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    I think he is concerned with the receiving end of the 8 bolts, and whether there are bushes he can install in the chassis to accept them. I think the wishbone flambocs are not a concern for him to swap out.
     
    f355spider, May 18, 2019
    #3
  4. Qavion

    Qavion F1 World Champ Silver Subscribed

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    I recall the Honda NSX had some bolt threads coated in plastic (one use only) to prevent disimilar metals reacting with each other. I also hear that Loctite Blue 243 offers some galvanic protection (medium grip with no special tools for removal). Perhaps Permatex has something, too.
     
    Qavion, May 18, 2019
    #4
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  5. tbakowsky

    tbakowsky Two Time F1 World Champ Consultant Professional Ferrari Technician

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    I live in Canada, and have never encountered such corrosion on a Ferrari. That car has seen some weather
     
    tbakowsky, May 18, 2019
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  6. Chopperman

    Chopperman Karting

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    That is correct. It is the aluminium chassis that is causing me concern
     
    Chopperman, May 19, 2019
    #6
  7. Chopperman

    Chopperman Karting

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    UK weather
     
    Chopperman, May 19, 2019
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  8. Cribbj

    Cribbj Formula 3 BANNED

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    Alternately, perhaps have the new bolts coated with similar stuff as fasteners used offshore or in corrosive plant areas?

    That won't fix the problem with the loss of thread material on the receiving end, however.....
     
    Cribbj, May 19, 2019
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  9. f355spider

    f355spider F1 World Champ Owner Rossa Subscribed

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    I've noticed examples both here and on Wheeler Dealers, that well driven cars in the UK do receive a lot of corrosion to the suspension and chassis...I never realized it was so wet there.
     
    f355spider, May 19, 2019
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  10. Chopperman

    Chopperman Karting

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    It's the area where the air is funnelled up and out the rear and the other side of the chassis gets the water and grime from the road
     
    Chopperman, May 19, 2019
    #10

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