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Cam Cover Patina

Discussion in '308/328' started by Lowell, Feb 20, 2019.

  1. Crowndog

    Crowndog F1 Veteran
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    Pictures?
     
  2. Martin308GTB

    Martin308GTB F1 Rookie
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    Sorry Robert, but no. But you could 'silver subscribe', go to the FChat 'Backroom Lounge - Bikini Thread' and compare it with the european Playboy-issues. :)

    Best
    Martin
     
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  3. Saabguy

    Saabguy Formula 3
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    MARTIN! You left out the important phrase, "Or so I've heard." ;-)


    Lester

     
  4. Martin308GTB

    Martin308GTB F1 Rookie
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    Why Lester?
    That recommendation to Robert is, what I permanently do myself :)

    Best from Germany
    Martin
     
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  5. Crowndog

    Crowndog F1 Veteran
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    That’s usually my disclaimer.
    Rob


    Sent from my iPhone using FerrariChat.com mobile app
     
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  6. 4redude

    4redude Formula Junior

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    The most correct finish I have seen is a vibratory tumbler.
     
  7. moysiuan

    moysiuan Formula 3
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    Som of these peices look really nice with all the specialized preparation. To stay closer to the OEM finish, which as noted was not so perfect at all, just try some hand polishing with a a compound like eg. Menzerna universal polishing cream. Will reduce the blotching without changing the surface finish. May as well give it a go, and if it doesn't clean up to your satisfaction then try the more aggressive approaches.
     
  8. kcabpilot

    kcabpilot Formula Junior

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    #33 kcabpilot, Feb 24, 2019
    Last edited: Feb 24, 2019
    I've considered vapor blasting which seems to completely remove the "patina" It looks very nice but I'm not sure how long it will last in a working engine compartment. The shape and position of the cam covers makes it impossible to periodically just wipe them clean. So I cleaned mine in the blast cabinet then spent hours with Scotchbrite pads and microfiber towels buffing down the rough texture produced by the blast media. Not a method I would recommend due to it being rather labor intense. But I'm pretty happy with the appearance it is after all, an engine and not a dining table. I did polish the Ferrrari logo and raised strips with a piece of 7000 grit sandpaper just to give them some highlighting.

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  9. Rosey

    Rosey Formula 3

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    Lowell I just checked my car which has the original cam covers unfinished and browsed through many of my period Ferrari books and the original covers do have a slightly mottled appearance. Maybe a little less than yours but they are certainly not uniform in colour like many of the examples above.
     
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  10. Saabguy

    Saabguy Formula 3
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    So does anyone have any parts that have been vapor blasted and used in an engine bay for any time? I am curious to see what happens with high temperatures and oil, dirt, etc. I understand that I may lose concours points but at present, mine are in "failing red" where there is red paint flaking off the cam covers and that needs to go. I mean it is going slowly but I might like it to go faster.
     
  11. Rifledriver

    Rifledriver Two Time F1 World Champ

    Apr 29, 2004
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    What do they look like under the paint? Its not like we require brand new looking covers. But a patina or even some stains are preferable to an incorrect finish. We are trying to reward originality, not the shiniest parts.

    I'd walnut shell blast them and see what you have.
     
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  12. Saabguy

    Saabguy Formula 3
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    Looks like hell. Places with paint remaining are lighter (?) than those where paint flaked off some time back. I am not willing to take off the cam covers just to pretty it up but when that time comes I would like to get it right.
     
  13. Mike C

    Mike C F1 Veteran
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    While still on the car, cleaning with a toothbrush and a paste made from Bon Ami works well.
     
  14. Lowell

    Lowell Formula Junior
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    Still looking for a way to fix blotchy 308 cam covers.
    Does anyone know about airplane aluminum skin coating --- a clear coating that inhibits corrosion? Image Unavailable, Please Login
    I'll try to attach a photo I found on the web of some airplane coating that may look like the original cam cover finish.
     

    Attached Files:

  15. kcabpilot

    kcabpilot Formula Junior

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    Don't use any sort of clear coating. I once used a product called Nylac from Eastwood on my Alfa cam cover. It was advertised as being specifically for such purpose. Looked good for about a year then began breaking down and looked like hell. Also took a hell of a lot of work to get it all off. Any kind of coating on an engine part will, just like paint, eventually go south and look like a mess. For aluminum I've found that naked is the best way to go long term.
     
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  16. Lowell

    Lowell Formula Junior
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  17. Hannibal308

    Hannibal308 F1 Rookie
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    Try it on something else first. Like your shifter box or the foot pedal box. Both hidden but raw aluminum
     
  18. Lowell

    Lowell Formula Junior
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    Image Unavailable, Please Login I made the cam covers look somewhat like airplane wings. Here is a photo showing the cam covers attached to the engine.

    Any comments?
     
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  19. Saabguy

    Saabguy Formula 3
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    So Lowell, what did you end up going with? Looks nice from what I can see.
     

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