How to Remove Heat Stains on Engine?

Discussion in 'GS Boxers' started by DetourJournal, Jan 25, 2013.

  1. DetourJournal

    DetourJournal DetourJournal.com

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    I did a very bad thing. I started my 1150 GS, quickly ran inside to grab something, got distracted, and 30 minutes later, I found my bike in a thick cloud of smoke. :cry I melted the Oil-view window and a couple of very minor plastic mounts, but from what I can tell, I got Lucky. (the bike hadn't seized and plenty oil was still rushing out, Oil Pressure Sensor is still intact)

    The one thing I don't know is how can I remove the heat stains on the Engine and magnesium cylinder heads?
    I've heard Vinegar works for stainless Steel, does anyone have any other suggestions?

    [​IMG]
    #1
  2. STUFF2C

    STUFF2C We Ain't Left Yet!!

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    Daaaaaaamn!
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  3. Twilight Error

    Twilight Error Going nowhere slowly

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    The discoloration you're seeing is the finish applied to the parts, not the metal itself. You're probably going to have to strip it all off and refinish them.
    #3
  4. def

    def Ginger th wonder dog

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    Vinegar is a weak acid. It won't touch your stains but will leave an unpleasant odor everywhere.

    Try Super Clean, a strong, water soluble cleaner. It is available at Wal-Mart.

    Careful, wear gloves if you're going to handle the wet parts...undiluted, the stuff will remove skin. Also, keep it away from glass...it can etch glass if not removed promptly.

    It contains NaOH (sodium hydroxide) and silicates (strong alkalies). The pH is about 13.

    I use it for grease removal on metal parts, carburetors, cleaning plastic furniture, as a deck cleaner with the pressure washer (diluted), carpet stain remover, laundry pre-spotter, cleaning the bar-b-q smoker, cleaning concrete, cleaning the wife's gold and platinum diamond rings, etc.

    Diluted, it is excellent at cleaning auto wheels, tires or white walls (remember those?).

    If the stains you have are cooked on oil, this stuff will take it off.

    Oh, and its cheap....~$10.00/gallon. I purchased my last gallon about two years ago and still have plenty left.

    Super Clean is my regular go-to all-purpose cleaner. I have it around in spray bottles at various strengths.

    Rinse thoroughly.
    #4
  5. def

    def Ginger th wonder dog

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    The boxer engine should never be warmed up before riding. It is best to get your gear on, mount up and start the engine. Move the bike off the center stand, engage 1st gear and ride off...no warm up.

    There have been instances of boxers catching fire by owners who made the same mistake...starting the engine, leaving it running and getting distracted.

    You were fortunate however, you may experience some heat related problems in the future (seals, oil leaks, wiring damaged, etc.).

    I would inspect the engine oil for signs of overheating and change it if found to be suspect.
    #5
  6. Twilight Error

    Twilight Error Going nowhere slowly

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    When the temperature dips below 10, I'll get partially geared, start the bike on the centerstand, go back inside to put on my 'stitch and helmet, then leave. This typically is during the morning when I'm on my way to work, so the chances I'll get distracted and not leave are quite slim.
    #6
  7. slartidbartfast

    slartidbartfast Love those blue pipes

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    That's burned paint, not stained metal. I'd leave it alone. Consider it a badge of honor, a warning to others, ... whatever.
    Replace the oil window, oil and filter, keep your eye out for leaks from any cooked seals and if nothing bad happens, consider yourself very lucky.
    #7
  8. Twilight Error

    Twilight Error Going nowhere slowly

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    I'd replace the valve cover gaskets (all four of them), they saw a lot of heat and probably aren't as flexible as they used to be.
    #8
  9. BigDave75

    BigDave75 Will Work for Food!

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    Wow, sounds like you caught it just in time!
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  10. Juan Loboe

    Juan Loboe Been here awhile

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    Tell others that you got the "gold package" option.
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  11. DetourJournal

    DetourJournal DetourJournal.com

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    Oh I Like that! Although, while I like the badge of honor, I prefer the badges that don't scream "Hey everyone! I'm a moron."

    Trust Me. I Cried. The worst part is I totally know better (In fact I just cautioned others against the EXACT SAME thing in a How to Change your Oil Video). It was pure stupidity. These bikes don't need to warm up and I only intended to run into the house and right back out.

    It's good to hear that it's just the finish on the metal that's stained. I'll definitely try Super Clean. Is it similar to just using carb cleaner?
    #11
  12. kellymac530

    kellymac530 motorcycle addict

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    Super clean is just a strong citrus based cleaner with amonia in it. It is not like carb cleaner at all. You must rinse it off with water, unlike carb cleaner.

    I do not think anything will fix that discoloration except repainting the painted parts. Powder coat or even rattle can will work with varying levels of quality.

    If you have no other damage you are very fortunate. I would worry about ALL of my electronics like the HES.....anything in an epoxy sealed canister like resistors or capacitor stuff.
    #12
  13. simoneau

    simoneau Biker/Adventurer/Retired Engineer

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    You really should remove the valve covers and eyeball the timing chain tensioners and slide rails. A friend of mine did the same overheat to his engine and his rails and tensioners warped to the point of turning 90 degrees to their respective positions. In his case, noises ensued!
    #13
  14. def

    def Ginger th wonder dog

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    Incorrect, Super Clean is not citrus based, does not contain NH3 and contains no volatile solvents. It is inorganic.
    #14
  15. Ayrshire Bull

    Ayrshire Bull why the hell not?

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    [​IMG]
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  16. def

    def Ginger th wonder dog

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    No. It is not a solvent. It does not contain MEK, Xylene, Methyl Chloride, Methylene Chloride or any similar volatile organic compound and therefore is not an inhalant concern.

    It is considered a Hazardous Chemical due to the strength of the sodium hydroxide and is labelled as such so, don't get it on skin or clothing that contacts skin. Don't get it in your eyes. Handle it like you would caustic oven cleaner or drain opener; gloves and eye protection.
    #16
  17. def

    def Ginger th wonder dog

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    Mr. Clean is a wimp compared to Super Clean. Also, he's too expensive.
    #17
  18. Ayrshire Bull

    Ayrshire Bull why the hell not?

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    so are you saying Ms Super Clean, is - 'cheap'? I wouldn't tell her to her face.
    #18
  19. def

    def Ginger th wonder dog

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    Yup and smells better too.

    Soak your brake rotors in it to remove brake pad deposits. Remove them first.
    #19
  20. slartidbartfast

    slartidbartfast Love those blue pipes

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    Fixed...
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