Seafoam Cupra?

[dannychapman10]

Hi everyone,

Been a while since I've been on here and thinking of returning to fold.
Seen a Leon Cupra at a great price, too good to miss. Owned one before and it really doesn't compare to my Audi A3.

The Audi is a brilliant cruiser, but I'm after fun due to the short journeys I do, anyway to the point. Has anyone on here used Seafoam to clean out the engine on the Cupra? I know the TFSI likes to produce carbon likes it's going out of fashion! But just wondering if anyone has first hand experience and where to actually put the stuff?

I found a video on youtube of a guy that did it in the US on a MK6 Golf GTI with the TSI engine in and he put the fluid through the hole for the engine temp sensor as it creates a vacuum, do the TFSI and TSI differ greatly?

Any help would be much appreciated!

 

[Smee]

didnt know you had sold your cupra... wtf were you thinking lol

in regards to the question i dont even know what seafoam is unless its the crust that the waves bring in at Yarmouth beach but i just presummed that was crack from local users!!!

lee

 

[jon-tfsi]

The temp sensor is the best place on the tfsi also. its pretty much in the middle of the inlet manifold. The vacuum on tick over is enough to draw the sea foam up through tube. Be care full not to rev the engine though like i did, as any boost will blow the hose out manifold.

 

[dannychapman10]

Lee, yeah I sold it for an Audi as I thought I was transferring jobs so needed something economical but it turns out I didn't
It's basically an engine cleaner that goes directly into the engine on tickover, then you let it sit for 10 minutes or so and rev the car at certain revs and go for a long drive and blows all the built up carbon out.

Jon, did you actually use the seafoam? Did it make a difference to the amount of black crap that comes out the exhaust, have you only done it the once?

 

[jon-tfsi]

You change your cars at an unbelievable rate

I just did it the once as i was having problems witht the engine and was recommended to me. I used redex, a large bottle of. Any of the usual brands will do. I also used a football inflation needle in the hose as the small bore of the needle helps to meter the flow.

you can rev the engine a very small amount whilst doing this but to rev it anything over say 1500 rpm you will have to put the temp sensor back in first.

 

[jon-tfsi]

A couple of pics i took at the time:

 

[dannychapman10]

Oh I know, I suspect as I get older I'll stop getting bored of cars quickly! Don't get me wrong I love the Audi! But the Cupra is £2k less then the trade in value of the Audi so walking away with that in my back pocket can't be bad!

Did you have any warning lights come on after removing the temp sensor?

 

[Smee]

yea but its 2k in your pocket tomorrow but 2k in AWESOME GTI pocket the following day

 

[Paul197]

is this a worthwhile thing to do?

 

[dannychapman10]

That's what I was asking Jon, the guy on youtube that did it with his 1 year old Golf GTI with 17k on clock blew out a lot of crap and it was a relatively new car.
Jon did you notice a difference at all?

 

[Paul197]

thee was quite alot of crap inside mine when i looked wilst doing an injector!

 

[jon-tfsi]

It was just like the good old days of pouring redex straight into the carb and getting the smoke out the exhaust.

There is a lot of build up of crap on the valves on the tfsi as the zero fuel passes them. The injectors are in the block instead of the head, like on conventional engines.
Ontop of that the crank case gasses and vapours are circulated back through the inlet manifold which is the main culprit for the gunk on the valves.

Putting redex in the tank will help keep the injectors clean and possibly clean the exhaust valve seats, but wont clean the inlet valves.

You should not get any fault codes as long as the car isnt revved before the sensor is replaced.

 

[Smee]

why cant you guys live closer. i wouldnt do it my self to my car but if you lot were closer you could do mine

 

[HotHatchSteve]

Since Ive had my Cupra I've use Wynns Direct Injection Power 3 at both service intervals because of the petrol not going pass the inlet valve.

The first time I used it I got loads of black smoke out but the second time nothing.

All as I do is unlcip the tube that goes from the MAF and squirt in there. It has to be used post MAF.

 

[dannychapman10]

So am I right in thinking Jon used a different product to you Steve? In terms of what it actually does? Or do these products both do the same thing?

Lee if I do mine, you're more then welcome to come up to good ol' Lincolnshire and do it together and see what the results are If you youtube Seafoam, you'll see a lot of smoke comes out as long as you're not afraid of that, you'll be fine

 

[Slimy]

Very slightly off topic, but is there any chance you can tell me where you get your seafoam from? I've been after it for ages as it's renowned for revitalising bike carbs, but I can only find US stockists, or really overpriced importers.

 

[HotHatchSteve]

So am I right in thinking Jon used a different product to you Steve? In terms of what it actually does? Or do these products both do the same thing?

I've never used sea foam but from what I have read they are both for deco king the inlet valves etc.

 

[jon-tfsi]

Since Ive had my Cupra I've use Wynns Direct Injection Power 3 at both service intervals because of the petrol not going pass the inlet valve.

The first time I used it I got loads of black smoke out but the second time nothing.

All as I do is unlcip the tube that goes from the MAF and squirt in there. It has to be used post MAF.

Im not so sure that method is recommended for turbo'd cars Steve. The product will have to go through your turbo, through your boost pipes and through your intercooler and travel up your throttle body pipe before it makes it into your engine. Most of it will most likely just line the pipes.

I could be wrong but i think that method is for N/A engines.

 

[rudgey]

Any ideas or recommendations on what to use for the hose? Also will the method that jon-tfsi used get the redex all over the valves? Won't it just sorta trickle as gravity takes it?

Any good guides also?

What about spraying a bit of the good old Carb cleaner down there?

Sent from my GT-I9100 using Tapatalk

 

[jon-tfsi]

Vacuum drags the redex up the hose and sucks it through the manifold . . . . all the product will go straight into the engine.

The hose was either half inch or 3/8 fuel line, cost approx £1. You can see in the pics i wrapped some tape around the hose end so it was a neat fit into the manifold, to maintain the vacuum.

A football inflation needle is req'd to meter the flow otherwise the vacuum will suck the full bottle in seconds

Any similar product will work for this, they all contain the same basic ingredient