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Thread: Cleaning engine parts like alternators.

  1. #1
    Driver N A's Avatar
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    Question Cleaning engine parts like alternators.

    What's the best way to clean them and prep them for paint? Just hit them with some 220-400 sand paper, blow them off with compressed air then brush on paint?


    '90 Mercury Grand Marquis GS
    Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
    4.6L swap coming soon.

  2. #2
    Fack da Hulk Hogan! Grand Marquis GT's Avatar
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    Quote Originally Posted by N A
    What's the best way to clean them and prep them for paint? Just hit them with some 220-400 sand paper, blow them off with compressed air then brush on paint?
    Use brake cleaner to prep them after sanding, as well...

    It is notorious for cleaning very well, drying fast, and leaving no residue..

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  3. #3
    Driver N A's Avatar
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    Thanks for the info.


    '90 Mercury Grand Marquis GS
    Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
    4.6L swap coming soon.

  4. #4
    I'm an air-conditioned gypsy gadget73's Avatar
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    good carb cleaner I find generally works better. 2+2 = teh win for paint prep. Just be careful what and where you spray stuff. It will dissolve the varnish on the internal windings, possibly causing shorts. If you really want to paint it, I would probably take it apart and paint the case without the guts in it.

    86 Lincoln Town Car (Galactica).
    Drivetrain: 5.0 HO, Explorer cam, FMS 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley, SuperCoupe stall converter

    Suspension: Bridgestone Protenza G019 225/60/16 on LSC turbines, 1 3/16" wagon front bar, 1" PI rear bar, cargo coils, KYB GR-2 front shocks, F150 rear air shocks, big front brakes, ES poly front suspension bushings, 00 CVPI steering box, ES poly body mounts, rear disc brakes

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks.

  5. #5
    Driver N A's Avatar
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    I'll scuff it up and blow it off. Wipe it clean with brake or carb cleaner and paint with a brushable, high-temp silver paint.


    '90 Mercury Grand Marquis GS
    Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
    4.6L swap coming soon.

  6. #6

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    Don't use carb cleaner, it leaves a mild lubricant on the surface.

    Use brake cleaner.

  7. #7
    Driver N A's Avatar
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    I just bolted it on. I'll remove it and take it apart when I paint it.


    '90 Mercury Grand Marquis GS
    Baseline 5.0L numbers totally stock, 123 rwhp, 239 rwtq
    4.6L swap coming soon.

  8. #8
    Has-been that never was. Blaze86Vic's Avatar
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    Quote Originally Posted by 91gmblack
    Don't use carb cleaner, it leaves a mild lubricant on the surface.

    Use brake cleaner.
    Some carb cleaners do, not all. Most of the higher priced ones do not leave an oil residue. Good carb, or brake cleaner does work very good though! I would also recomend removing it and painting just the body.

  9. #9
    I'm an air-conditioned gypsy gadget73's Avatar
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    :stupid:
    2+2 doesn't leave a film. Cheapie Advance Auto crap does. The Wal-Fart junk does too.

    86 Lincoln Town Car (Galactica).
    Drivetrain: 5.0 HO, Explorer cam, FMS 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley, SuperCoupe stall converter

    Suspension: Bridgestone Protenza G019 225/60/16 on LSC turbines, 1 3/16" wagon front bar, 1" PI rear bar, cargo coils, KYB GR-2 front shocks, F150 rear air shocks, big front brakes, ES poly front suspension bushings, 00 CVPI steering box, ES poly body mounts, rear disc brakes

    91 Lincoln Mark VII LSC SE, triple black (Timewarp) - poly front bushings, KYB struts and shocks.

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