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Thread: sea foam

  1. #1
    jimmy armour
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    sea foam

    Hi Guys, I was wondering has anyone used seafoam, to clean the carbon from pistons and valves?,I will strip my r100s engine heads and cylinders this winter and wanted to start with a cleaner engine internals so run it for a about 1000 kms with seafoam in the gas tank, before stripping her, what do you think, thanks in advance Jimmy

  2. #2
    Liaison 20774's Avatar
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    A few past threads on sea foam are shown in the Similar Threads pane below.
    Kurt -- Forum Liaison ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

  3. #3
    Registered User
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    I tried it on my barnfind R75/6. The left exhaust was smoking a little.
    I added 1/2 cup of sea foam + 1/2 cup marvel mystery oil to the engine oil after
    I sucked out one cup of engine oil. Ran it for about 100 miles. Smoking is gone
    and a leak down test showed 10% leakage. (Left and right).
    I am glad I tried this rather than taking half the engine apart.

  4. #4
    Registered User toooldtocare's Avatar
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    I use it in engines that have sat around with gas in the carbs. Most recently in our neighbors generator that they put away a couple of years ago without draining the gas. About a cup of Seafoam to a gallon of gas or so and a couple of hours running had it running like new.

  5. #5
    Nick Kennedy
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    I watched a YouTube vid a couple of months ago where a guy ran a test running Seafoam, Marvel Mystery oil and Techron and plain gas through a lawn mower, took off the head each time, cleaned it and put on a new head gasket and reran the engine with different additives. I saw very little if any difference in any additive vs plain gas.
    That said I do run Seafoam and Techron through my vehicles and bikes every year, trying to stave off any injector clogging.

  6. #6
    Nick Kennedy
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    A few years ago Paul Glaves wrote in his column Benchwrenching about his wife Voni riding into a downpour and her bike shut off. Turned out the water ingestion caused a piece of carbon to lodge under the exhaust valve causing the engine to lose compression.
    In my old VW days there was discussion about this "water injection" carbon cleaning of the combustion chambers, at full throttle.
    So apparently there is some credence to this theory.
    How you would get water in there is a interesting question.
    Coors Light anyone?
    That's like making love in a canoe
    Fu@#ing close to water.
    Sorry couldn't help myself.

  7. #7
    Registered User mlytle's Avatar
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    seafoam is either snake oil or a miracle depending on which internet forum you are reading. its virtues or failures have been debated ad nauseum for decades with zero conclusive evidence either way from what i have seen.
    Marshall
    92 K75s, 94 K75s, 96 K1100RS (caretaker), 09 K1300s

  8. #8
    Left Coast Rider
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    Quote Originally Posted by mlytle View Post
    seafoam is either snake oil or a miracle depending on which internet forum you are reading. its virtues or failures have been debated ad nauseum for decades with zero conclusive evidence either way from what i have seen.
    I think its miracle snake oil - or a waste of money.

    I can provide anecdotal evidence that Techron, on the other hand, actually works as intended.

    (I sense a thread similar to synthetic versus dino versus diesel oil starting. )

  9. #9
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Quote Originally Posted by nickrides View Post
    In my old VW days there was discussion about this "water injection" carbon cleaning of the combustion chambers, at full throttle.
    In the days of older design engines it was reasonably common to hold the throttle at half to three quarters and pour a cup of water slowly down the carburetor. IIRC, it did some good. With the sensors and the catalytic converters I would have to do some thinking before I tried it on a modern engine.

    As far as Sea Foam, I'm not familiar with it reducing any amount of carbon in an engine that is already carboned up. I always saw it as an additive that would help stave off the effects- or at least some of the effects, of ethanol. I use it along with Stabil and Techron when storing engines for the season.......along with 105 octane no ethanol racing fuel.
    I also add Mystery Oil to fuel tanks (in the gas) that are made of steel to slow flash rust. The regular pump fuels seem to be "iffy" although brands like Mobile claim "cleaner engines" if you use their fuel. Perhaps they will stay "cleaner" but as for cleaning up what is already there, maybe a little.
    OM
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  10. #10
    Quote Originally Posted by nickrides View Post
    A few years ago Paul Glaves wrote in his column Benchwrenching about his wife Voni riding into a downpour and her bike shut off. Turned out the water ingestion caused a piece of carbon to lodge under the exhaust valve causing the engine to lose compression.
    .
    Yes indeed with about 300K on the bike.
    Paul Glaves - "Big Bend", Texas U.S.A
    "The greatest challenge to any thinker is stating the problem in a way that will allow a solution." - Bertrand Russell
    http://web.bigbend.net/~glaves/

  11. #11
    If you check the MSDS, you will see the Sea Foam contains IPA ( isopropyl alcohol) and a small amount of secret ingredient. IPA is also used in Heet additive. Heet has been on the market for decades.

  12. #12
    jimmy armour
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    thanks everyone

    thanks Guys , will hold off for a while, I want to strip the engine to fix oil leaks pushrod tubes and cylinder base not quite in mood yet maybe next month,once again thanks to everyone ,Jimmy

  13. #13
    Registered User mlytle's Avatar
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    Quote Originally Posted by Omega Man View Post

    As far as Sea Foam, I'm not familiar with it reducing any amount of carbon in an engine that is already carboned up. I always saw it as an additive that would help stave off the effects- or at least some of the effects, of ethanol. I use it along with Stabil and Techron when storing engines for the season.......along with 105 octane no ethanol racing fuel.
    I also add Mystery Oil to fuel tanks (in the gas) that are made of steel to slow flash rust.
    OM
    with all those additives, is there any room in the tank for gas?
    Marshall
    92 K75s, 94 K75s, 96 K1100RS (caretaker), 09 K1300s

  14. #14
    Fortis Fortuna Adiuvat Omega Man's Avatar
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    Quote Originally Posted by mlytle View Post
    with all those additives, is there any room in the tank for gas?
    Yeah I know.....It sounds goofy but I have good luck with the mixture. I have a John Deer 2E blower (essentially an Echo 210E) circa 1988 with the original carb (pre CARB ) still running.

    Looks like this-



    Damn messing with Ethanol and "starvation" jetting.

    OM
    "You can do good or you can do well. Sooner or later they make you choose." MI5
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  15. #15
    Registered User mlytle's Avatar
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    Cool

    Quote Originally Posted by Omega Man View Post
    Yeah I know.....It sounds goofy but I have good luck with the mixture.
    need to add STP and Slick50 to round out the complete mixture....
    Marshall
    92 K75s, 94 K75s, 96 K1100RS (caretaker), 09 K1300s

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