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Resolved Cam cap corrosion/pitting

Posted by SNAKE_15, Jan 30, 2018

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  1. SNAKE_15

    SNAKE_15 Proven Member

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    Hey guys, was hoping you guys can chime in and tell me if I'll be fine. I noticed this small spot of corrosion/pitting on just this one cam cap. I can drag my fingernail across it but it's slightly rough going past that one spot, not too crazy and doesn't fully catch my nail. Metal is not raised, but I do feel the roughness in this one spot

    20180130_205530.jpg

    20180130_205857.jpg
     

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    1995 Eagle Talon TSi AWD
    manual · 2G DSM

    Street Build 1K  0

    1991 Mitsubishi Galant VR-4
    manual · Galant VR-4
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  2. ec17pse

    ec17pse Freelancer

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    To me thats looks like 1 clean surface area, not many will looks as fresh as that,

    If its not got any major deep grooves to trap dirt then its ok, you can use very very FINE grade wet sand paper to take any high spots off or a soft wire brush but dont go hard, you just want to freshen the surface up without causing issues,
     

    Road Race Build 10K  10  56

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  3. SNAKE_15

    SNAKE_15 Proven Member

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    I might try one of those methods just to be safe. I just don't want this spot to scratch my cams or cause any problems. Edit:
    Added better photos

    20180130_222035.jpg

    20180130_222019.jpg
     
    Last edited: Jan 31, 2018

    2K  0

    1995 Eagle Talon TSi AWD
    manual · 2G DSM

    Street Build 1K  0

    1991 Mitsubishi Galant VR-4
    manual · Galant VR-4
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  4. ec17pse

    ec17pse Freelancer

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    As long as its not overly deep it wont be an issue, main concern is if its raised thats when it becomes a bigger threat for the cam, even a scotch bright might take the edge of anything of concern then a good clean after,
     

    Road Race Build 10K  10  56

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  5. SNAKE_15

    SNAKE_15 Proven Member

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    Im a go ahead and use a scotch pad first since I have one here at my side. Should I just lubricate cap with wd40 first on the cap and lightly go over the rough spot with the pad?
     

    2K  0

    1995 Eagle Talon TSi AWD
    manual · 2G DSM

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    1991 Mitsubishi Galant VR-4
    manual · Galant VR-4
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  6. ec17pse

    ec17pse Freelancer

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    yes always keep it lubed up, you want to not score it, and not too much pressure either, its not alot you have so gently does it and keep checking as you go,

    you will not remove and dips nor want to so just concentrate on the high bits you feel
     

    Road Race Build 10K  10  56

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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  7. SNAKE_15

    SNAKE_15 Proven Member

    504
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    Joined Aug 28, 2012
    Bakersfield, California
    20180131_173929.jpg 20180131_173902.jpg 20180131_173853.jpg


    Just got done using the scotch pride and it feels alot better. I can still feel it but definitely not getting suck on my fingernail as much as before.
     

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    1995 Eagle Talon TSi AWD
    manual · 2G DSM

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    1991 Mitsubishi Galant VR-4
    manual · Galant VR-4
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  8. ec17pse

    ec17pse Freelancer

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    Looks much better now, its a simple fix to get the high spots Way without damage,
     

    Road Race Build 10K  10  56

    1997 Mitsubishi Eclipse GST
    175 whp · 180.1 lb/ft · 2G DSM
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    SNAKE_15 likes this.
  9. motomattx

    motomattx Proven Member

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    In order to get that out you would have to take at least .001" from it, best to leave it alone.
     

    Drag Race Build 4K  24

    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  10. SNAKE_15

    SNAKE_15 Proven Member

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    Joined Aug 28, 2012
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    That's the plan. I have all my parts ready to go and this was the only thing that was stopping me from assembling my motor but it looks good now, thanks for your guys help and advice :hellyeah:
     

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    1995 Eagle Talon TSi AWD
    manual · 2G DSM

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    1991 Mitsubishi Galant VR-4
    manual · Galant VR-4
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