"carbon is one of the most stable elements on earth. you would need something that chemically reacts with carbon to dissolve it, of which, a fossil fuel based detergent isn't going to do anything. you can believe what you want, but you can't argue with science."

This might be true at room temperature, but add some heat and carbon will react with many other elements. It can form CO2, CO, CH4, C8H18, and countless others. Picture burning charcoal (impure carbon) in air and ending up with carbon-containing gases and ash. Other reactions will happen in the presence of other chemicals and heat, so I would not rule out that the carbon itself could get attacked in a combustion chamber.

Sea Foam's documentation clearly states that it cleans carbon deposits from the combustion chamber by attacking the petroleum varnish that holds it together. Combustion chamber deposits are not pure carbon and the photos in the threads below clearly show that Sea Foam and similar products have a desirable effect on petroleum varnish, so I would bet it has at least some cleaning effect in the combustion chamber.

I ran several 12 ounce fuel injector carburetor cleaner bottles through my Yamaha FZR600, but I never used a really high concentration and there was still a significant carbon ceramic-like coating in the combustion chamber when I removed the head. This was from years of running too rich with worn needle jets. Engine degreaser helped soften it some on the cooler-running aluminum piston and head surfaces so I was able to remove some with a stainless steel toothbrush. Unfortunately for this discussion I did not try Sea Foam. The carbon deposits on the steel valve surfaces were a completely different story. Nothing I tried would soften it and I actually had to chip it off by light hammering with a putty knife. Both of these substances would have behaved differently in the presence of heat and pressure. I probably could have burned the carbon off the valve faces and seats with my propane torch.

bg induction cleaner valve intake pics before & after induction application
http://www.vimeo.com/3989681

intake sludge buildup in direct injection engines induction application necessary
http://rs246.com/index.php?name=PNph...&postorder=asc

examples of combustion chamber deposits
http://forums.finalgear.com/general-...seafoam-34976/

before & after shots of Sea Foam crankcase application
http://forums.finalgear.com/general-...-34976/page-2/

I have no doubt that Sea Foam will have a similar effect to the BG video results when applied in the gas tank in port-injection engines or when properly inducted. I have no doubt that Sea Foam works as an engine flush when added to the oil as evidenced by photos in the thread above. I have seen tons of references to people using a borescope to verify that Sea Foam cleans combustion chambers, but I have yet to see any photographic proof. I also have yet to see any photographic proof that simple water induction cleans combustion chambers.

I'm not saying that Sea Foam and water will not help clean combustion chambers, but that I would really like to see some photographs as evidence.

 

First, I've really had enough of this ongoing Seafoam debate. Second, I'm changing my plugs. Can anyone post a pic of the vacuum line they used to suck up (or directly pour) the Seafoam. I'm new to Fords and had I known how difficult it was to change plugs in a 5.4L 3V, I would have bought a Dodge.

Thanks

 

dodge is for pussies.

 

I had a cup of water to my lips when I read this, I was so close to spewing water.

 

it ruined my cats. 1000 dollars later all better.

 

Yeah i know what I am going to get when I say this, but my dad has one of these, No I have not used it, yes he has used it many times, he swears by it, hes been doing work on cars for years, and I personaly have seen a truck that ran like crap missing, and smoking and what not come in, get hooked up to this machine and when it was done ( 2 or so hours later ) it was like you had a new engine in it.

But for $5,500 it better work, and it takes hours to work ( not a few mins ) and a special solvent or chemical to make it work, I guess snap-on would not sell it if it didn't work, or it messed engines up.

http://buy1.snapon.com/catalog/item....re&dir=catalog

Personally, Having owned and drove the crap out of two other cars that I have removed the heads on ( 97 grand am 3.1with 130K miles / 00 3.8 Mustang 80K miles ) both of them where clean, infact the mustang was almost spotless in terms of build up and carbon, the 97 grand am had some oil caked on and a some carbon, even after many bottles of lucas and seafoam, the mustang had none, I am sure I was the seond owner the car had 40K on it when i got it.

The oil caking and carbon on the grand am was most likely a result of a teen with his first car, cheep gas and a disire to be cool and drive fast, switching from regualr to full syn oil often and lots of redlining.

That siad, that old grand am would smoke my mustang and give my truck a good run, stright pipe, chipped and tuned, CAI and a shift kit, makes for one mean grand am.

That siad, I will not be adding anything besides gas to my trucks fuel system, the stuff MIGHT work, or it might not.

I have seen a 2.2L S-10 come in with bent valves, the intake and valves where SEALED SHUT with gunk, a think black rubbery gunk and carbon, the guys siad he used STP fuel addative every other tank, take it or leave ir.

 

I have used it with a full tank of fuel in all my vehicles for years. Small amounts in my small engines. Never put it straight in the TB or crankcase... I haven't had any engine lights or issues due to seafoam..

 

^ I have!!! When I changed my plugs I poured almost a whole bottle down my throttle body and shut the truck off. 1 hour later took the plugs out, and the carbon would wipe right off will your finger! That carbon was as moist as a tube of Vaseline!

Story number 2... When my truck had 45k miles on it, I ran 3 tanks off gas through it. Each tank full had 1 whole bottle in the tank. After these 3 tanks where burt, my highway millage went up almost 3 mpg!!! Now tell me seafoam doesn't work...

 

I have heard to only use it every 15-20 K as it can fowl out sp. plugs... I use that rule of thumb... And yearly in my lawn tools/boats...