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Thread: Engine Cooling Fan & Houseing cleaning Technic?

  1. 06-15-2013, 08:32 AM #1
    Rino71
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    Engine Cooling Fan & Houseing cleaning Technic?

    I have a 11 blade fan, the casting on it as we all know it its not very good, I have tried to soda basted the fan and the housing to get a good finish but Ian not 100% convince. I am looking for a OEM look and don't want to pait them. its there a quimical product or something that will be recommended for this magnesium cleaning?

    Thanks,
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  2. 06-15-2013, 08:56 AM #2
    maspirito
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    Search on pelican There is a long Thread on this subject
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  3. 06-15-2013, 01:22 PM #3
    kentf14
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    As I recall, the pelican thread is pretty good. Most people looking for an original mag finish will agree that applying Gibbs penetrating oil will maintain a good look and allow the mag to eventually mellow to the aged grey color.
    I had my fan and housing glass beaded followed by a coating of Gibbs.
    Here's what it looked like after it was done. It's still about the same color and has been over a year since completed.
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    E911SR & RGRUPPE
    '65 911 "The Ol' Gal" (long gone)
    '73 S Coupe #306
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  4. 06-15-2013, 01:26 PM #4
    Rino71
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    Now we are talking!! Looks great
    Thank You.
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  5. 06-16-2013, 04:25 AM #5
    tom1394racing
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    I bead blast the fan with the hub masked and then spray with metal etch to bring out the oxidized mag finish. Final spray with Gibbs or CorrosionX.

    This process works nicely on all mag parts to restore the original finish.
    Tom Butler
    1973 RSR Clone
    1970 911E
    914-6 GT Clone in Progress
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  6. 06-16-2013, 06:21 AM #6
    kentf14
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    Masking off the hub is a good way to go. I wish I had dine this to mine.
    E911SR & RGRUPPE
    '65 911 "The Ol' Gal" (long gone)
    '73 S Coupe #306
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  7. 06-16-2013, 09:02 PM #7
    Silverbullit
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    Quote Originally Posted by tom1394racing View Post
    I bead blast the fan with the hub masked and then spray with metal etch to bring out the oxidized mag finish. Final spray with Gibbs or CorrosionX.

    This process works nicely on all mag parts to restore the original finish.
    any particular metal etch?
    Brian
    S Reg #1032

    "I measured twice, cut three times, and it's still too short!"
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  8. 06-16-2013, 09:17 PM #8
    gsjohnson
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    Be careful, the early fans are magnesium so I would be careful with the media that you select.
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  9. 06-17-2013, 02:56 AM #9
    tom1394racing
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    I always use 80 grit glass bead at about 80 PSI and POR-15 Metal Ready.
    Tom Butler
    1973 RSR Clone
    1970 911E
    914-6 GT Clone in Progress
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  10. 06-17-2013, 02:44 PM #10
    Alan.uk
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    Hi, we take the centre out, the media clean and chromate. Then refit a new centre that we make and re - revit. A bit over kill maybe.



    HTH

    Alan
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