use water to clean carbon out of engine

[stonny9]

my brother in law is a mechanic and he told me that the older caddies used to have a problem with carbon knock. He said that a mechanic that worked with him once poured water into the intake of a car that my brother in law test drove because it started knocking and that stopped the knocking. Can we do the same to our cars to clean out the carbon and if we can how do u do it.

[98Camaro3.8]

I would just stick with Sea Foam. Do a search on it and you'll find a lot of info. ;)

[Ian]

yes, water works, ive done it. sea foam is much better though.

either one, pull the vaccum line off the left side of the throttle body, hold the bottle up to the metal tube sticking out, and let it suck the stuff in to the point of just bogging down.

[stonny9]

how much water do u use i have read all of the articles on seafoam here just wanted to know

[hockeyman]

What I do is hook a 1' vacuum line up to the intake fitting, put my thumb over the open end, have someone start the car, and I move my thumb to the side a little bit so it doesn't stall the engine and I pour the seafoam into the vacuum until the engine stalls. (whew! long sentence)
Let the engine sit for about 5 minutes, then I start it up and watch the smoke display. Takes a good 5-10 minutes for the engine to blow all of the smoke out, but it runs much better afterwards.

-Marc

[3.4 slow to go]

I've seen/used water on carb motors, never used it on fi cars. Little step-by-step guid for Sea Foam :cool:

[Red2K1]

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