R56 Seafoam
Seafoam
Im going to be doing a Seafoam treatment this evening to try and clear up a rough idle issue, but im still a little confused which tube I should exactly be using to clean out the intake. If someone could please describe or show a picture of the engine bay and show me which tube to using that would be great.
Thanks.
Thanks.
Just to clarify, is the PCV tube the tube going in on the right as u look at the engine or the tube going into the back of the valve cover on the left. If it's the one on the back left how do u unclip it. I'm scared I'm going to break to clamp cause I have pulled and twisted on it pretty hard already an it will not come out.
I just read the thread and here's a picture of where the seafoam goes into on an MCS:

I read that some people use a screwdriver to get the clamp off and some people just squeezed it and pulled it off...sorry I can't help you there.

I read that some people use a screwdriver to get the clamp off and some people just squeezed it and pulled it off...sorry I can't help you there.
Thanks for your help guys. I'll let you know if the seafoam helps solve my rough idle issues. Happy motoring
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The key is to warm up the engine. When I warmed up the engine and the tube popped right off. It would not budge when it was cold.
I just got done with my first treatment. I ran 1/3 through the intake and let it sit for about 30 min. When I started it up it billowed tons of blackish/blue smoke
I also threw a code as the engine misfired a few times upon startup. I drove it pretty hard for about 10 min and it does seem to pull harder above 3k. I will do 2 other treatments to run through the other 2/3's of the can. I think I will let it sit for about an hour this time and see if i get more smoke.
I just got done with my first treatment. I ran 1/3 through the intake and let it sit for about 30 min. When I started it up it billowed tons of blackish/blue smoke
I also threw a code as the engine misfired a few times upon startup. I drove it pretty hard for about 10 min and it does seem to pull harder above 3k. I will do 2 other treatments to run through the other 2/3's of the can. I think I will let it sit for about an hour this time and see if i get more smoke.
Just seafoamed my R53. And the results gave me what I was looking for. You see, My lady's '05 R53 with 60k is so amazingly responsive on the throttle. my '05 with 80k that I just picked up last week...not so much. Well that all changed today after I dumped some seafoam down the pcv and let it sit for about 30 min. It completely de-bunks my theory that the difference may have lied in her new alta CAI, promising 10-12 WHP.LOL however thats just advertising
After reving all the carbon out I took it for a spin and WOWWWW did it get up and go, before it felt more like a naturally aspirated engine instead of force induction. But now when I flick the throttle it pushes me back in my seat
I'm assuming the engine had never been cleansed of all its carbon build up because the pcv was well we will say a "virgin" still. It's amazing what this little cleaning act will do for a car with any amount of miles on it
After reving all the carbon out I took it for a spin and WOWWWW did it get up and go, before it felt more like a naturally aspirated engine instead of force induction. But now when I flick the throttle it pushes me back in my seat
Has anyone talked to a dealer about why the PCV is all gunked up at 80k? It really shouldnt be.
To tell the truth, I wouldnt run Seafoam through the PCV just to clean it out. You are esentially pulling all that gunk into your intake, and then into the engine where its burned (thus all the smoke). On an R56 the combustion by-product is also going through your $1100 turbo.
On another car I had, the dealer had a 'kit' that contained all the tubes and canisters to 'tune up' the PCV. I think it cost $40 and took me a couple hours to put on. Clean tubes, smooth idle, and no Seafoam.
To tell the truth, I wouldnt run Seafoam through the PCV just to clean it out. You are esentially pulling all that gunk into your intake, and then into the engine where its burned (thus all the smoke). On an R56 the combustion by-product is also going through your $1100 turbo.
On another car I had, the dealer had a 'kit' that contained all the tubes and canisters to 'tune up' the PCV. I think it cost $40 and took me a couple hours to put on. Clean tubes, smooth idle, and no Seafoam.
Last edited by P200E; Feb 8, 2010 at 06:37 AM.
I'm not so sure, My PCV was not really gunked at all, or at least from what I could see. I thought the purpose of seafoam was to basically clean the inside of your engine,i.e, cylinders, and rid them of carbon that is built up inside of the enginge itself, not clogged hoses
either way i suppose my car is supercharged so I need not worry about the tubo, however I doubt burning carbon deposits once every couple of years to refresh your engines innards, will ruin it...
p.s The white smoke your car produces isnt just the seafoam being burned out. It is suppose to be the combination of that and all the nasty stuff that builds up in your engine from running petrol through it, thus the more carbon built up the more white smoke after you crank it.
either way i suppose my car is supercharged so I need not worry about the tubo, however I doubt burning carbon deposits once every couple of years to refresh your engines innards, will ruin it...p.s The white smoke your car produces isnt just the seafoam being burned out. It is suppose to be the combination of that and all the nasty stuff that builds up in your engine from running petrol through it, thus the more carbon built up the more white smoke after you crank it.
Seafoam is nothing but solvent and oil. Would you put paint thinner in your $30k car?
For cleaning the cylinder, injectors, piston crown, etc...use a good fuel injector cleaner like Techron... atleast that is formulated for a specific purpose of cleaning out the cylinder and injectors. Seafoam has been around since cars were invented and was developed for who knows what purpose. Old timers used it as a cure-all in their 64 Chevy for the crankcase, carb, etc...
And the thread linked above talks about a connection of PCV and carbon buildup...
Ultimately, do what you are comfortable with.
For cleaning the cylinder, injectors, piston crown, etc...use a good fuel injector cleaner like Techron... atleast that is formulated for a specific purpose of cleaning out the cylinder and injectors. Seafoam has been around since cars were invented and was developed for who knows what purpose. Old timers used it as a cure-all in their 64 Chevy for the crankcase, carb, etc...
And the thread linked above talks about a connection of PCV and carbon buildup...
Ultimately, do what you are comfortable with.
Last edited by P200E; Feb 8, 2010 at 10:39 AM.
I mean not saying that you shouldn't use a Lucas type product but ultimately I don't think it is as effective as far as the entirety of the engine.
just my 2 cents but I still recommend it if you start to feel like your engine is running slugish, plus I'm pretty sure there is a whole thread on here of other people giving it rave reviews.lol
if you put the Seafoam in the PCV tubing, it will not get into the fuel system. The fuel system is a closed loop, pressurized and only has fuel, so if you put Seafoam into the PCV it is going directly to the intake manifold where the engine's normal vacuum pulls vapor from the crankcase. The only place that Seafoam is going when you put it in as described is the intake and then directly into the combustion chamber, it does not go through the whole engine.
Techron is added to the gas where it cleans the injectors, and the intake tract/combustion chamber.
Oil cleans the rest of the engine, and coolant keeps the wet passages clean. These are all seperate systems that do not co-mingle.
Techron is added to the gas where it cleans the injectors, and the intake tract/combustion chamber.
Oil cleans the rest of the engine, and coolant keeps the wet passages clean. These are all seperate systems that do not co-mingle.
Our problem lies on the intake valves....thus why putting Seafoam in our PCV is is a very effective solution for us. The techs at my MINI dealership do it...and was recommended to them BY MINI, to help clean cars that are having carbon build up problems.
Fuel injector cleaner goes through the same valves the seafoam is.
http://www.chevron.com/products/prod...tives/tcp.aspx
Like I said before, do what you are comfortable with.
http://www.chevron.com/products/prod...tives/tcp.aspx
Like I said before, do what you are comfortable with.
When put through the combustion chamber and fuel system via gas tank as the instructions say, it definitely covers more of the engine than just a mere fuel additive. You can also put it in your oil obviously but I don't even mess with that 
Here is another R56 driver who apparently swears by it, every 3,000 miles a little extreme.lol
https://www.northamericanmotoring.co...t-r55-r56.html

Here is another R56 driver who apparently swears by it, every 3,000 miles a little extreme.lol
https://www.northamericanmotoring.co...t-r55-r56.html
Fuel injector cleaner goes through the same valves the seafoam is.
http://www.chevron.com/products/prod...tives/tcp.aspx
Like I said before, do what you are comfortable with.
http://www.chevron.com/products/prod...tives/tcp.aspx
Like I said before, do what you are comfortable with.

Direct Injection = NO FUEL GOING OVER THE INTAKE VALVES
2) I forgot R56 has direct injection .. mostly because I dont care, mine doesnt and a MINI wont be the next car in my garage when the R53 wears out...which wont be that long judging by the rust I have on the back half
Maybe I should have typed my post in all caps too.
Last edited by P200E; Feb 8, 2010 at 03:59 PM.
Anyone know if the justacoop NA engine has direct injection? I'd assume No..


