Carbon Cleaning the Engine on a Volkswagen Jetta GLI - Underdog Garage
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- Опубліковано 25 лют 2018
- Hey folks! In this video we are doing an engine carbon cleaning on a 2.0 TSI engine out of a Volkswagen 2013 GLI.
This VW GLI has 83,000 miles on it. We were replacing an intake manifold due to a check engine light code. Since we have the manifold off, we decided we were gonna do an engine carbon clean, remove the carbon buildup from the intake runners, and get this car running better again. We hope you find this video helpful and useful for how to get rid of carbon buildup on your own direct injection engine.
Step process for carbon cleaning engine:
1. With the intake runners open and exposed, we rotated the crankshaft to close the intake valves on the cylinder you will be working in. We rotated this multiple times throughout the carbon clean for each cylinder.
2. Once the valves are closed, We covered up the other intake runners we were not working on. We grabbed some pick tools and started removing the engine carbon.
3. First round we used pick tools and screwdrivers to scrape up the bigger chunks of the engine carbon. Then we cleaned it out with a vacuum.
4. After that we used a brass brush to clean even deeper. We first cleaned the carbon from behind the intake valves and the runner walls
5. After the dry brushing and scraping was finished, We poured the Kreen solution into the intake port to soak the valves. this industrial carbon cleaning product is an excellent tool for pre-soaking engine carbon deposits. the solution soaks in the intake runners for about 30 minutes.
6. After soaking, we grabbed pick tools and brushes and we started scraping and brushing the engine carbon again. This time more of it came off. After a little scrubbing, the valves were much cleaner
You made need to soak and clean the engine carbon a few times to get it all off. Then you're all done!
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Disclaimer: All videos are intended for basic information. Underdog Garage is not liable or responsible for any damage caused as a result of information in the video above. If you're unsure about performing this service, please consult with an automotive professional.
You guys are great I honestly didnt know how to clean the valves on my 2013 Gti which im sure it has the same motor. VW was gonna charge me 700 to get something like this done.
Roman Ballesteros thanks for that! We appreciate it. We’re glad to hear it helps. The motor should be the same. The process takes a little time but the car performs so much better after it. Good luck with your carbon cleaning!
The ONLY video that shows how to close the intake valve. Which is most crucial. Thanks guys!
Super crucial if you don't want walnut shell or fluid in the combustion chamber lol. Thanks for watching. We appreciate it!
Underdog Garage the rotation to close the intake valve is one directional clockwise only?
@Phungurific Yes. I try to only rotate the engine in its normal operating direction, clockwise. You could rotate it counterclockwise just a bit if you accidentally over-rotated the valve closed position, but I wouldn't rotate it much. If you miss complete closing of the intake valve I just keep rotating clockwise until I hit the fully closed position again.
Underdog Garage really appreciate it
Sure thing!
Excellent job. You were smart to rotate the engine so the valves were closed before cleaning. Also you let the cleaner soak, which most people aren’t doing on other videos. But man lots of hard work. 👍👍👍👍👍👍
Luke Skywalker Thanks so much! Yeah you always want to keep those valves shut and any debris out of the combustion chamber. Letting the cleaner soak breaks down the carbon deposit so it’s easier to clean off. It isn’t easy but it gets the job done. Thanks for watching!👍
If you guys were in Miami, I’d totally pay premium dollar for valve cleaning. What a superb and professional job!!!
Hey thanks Juan! We appreciate that as we try our best. Thanks a lot for watching!
Very great video guys. Thanks a lot for your comments.
Great and easy to understand video. Congratulatios guys
Thanks Kostas. Thanks for watching!
Good job
Thanks
Very nice video! I have a question.
What if we spray some "intake/carbirator cleaner" in the combustion chamber, is it going bad??
Good job and now the catch can oil and air separater
Oddly satisfying video
It was a long procedure, but satisfying work. Brought new life to the engine after reassembly. Thanks for watching!
Thanks for the film, very useful. Not sure where I'll find the solvent you used (I'm based in the UAE) but will have a looksee.
Thanks for watching Sean. We appreciate it and we're glad it was helpful. You might check if there's a local distributor or supply store where you can buy the carbon cleaning solution at. Or there may be an alternative product that is similar in composition.
With walnut blasting it takes max 20 min job and the results are close to new valves without using anything but walnut...
but most people do not know how to remove the manifold
@@adamnugent2137 is not about removing the manifold, is about of knowing the job, and 50% of this job is also on the injectors, they need to be cleaned and tested.
@@Gianncarlo0216 You don't have the clean the injectors
I did mine with a drill wite brush looked brand new when i finished your drill is spinning 2 slowly
Ottimo lavoro così si pulisce il condotto di aspirazione non con quegli spray che distruggono tutto
Buying a oil catch can filter kit can help stop or slow this problem down too!
Do you need to disconnect the fuel pressure sensor
What size is the crankshaft bolt?
Basic question: is it necessary to replace teflon seals on the injectors if they pull out with the air intake manifold? What about the injectors that stayed in the motor block?
Yes, definitely replace the Teflon seals or they could leak and you’ll be pulling the manifold again to reseal
Amazing. Real pro. btw i do it to. and i want ask you guys.
how you pull out the check engine light after? VW Computer? or any auto zone can clean the code?
Thanks! We appreciate the feedback. It made a huge improvement in the engine performance. We pulled the CEL code using OBD eleven. It's a scan tool you can buy for volkswagen and audi. You can hook it up to your phone and read codes, check for misfires, log engine data, clear codes, and more. Only thing is it only works with android devices currently. Here's a link to the tool:
www.ecstuning.com/b-obdeleven-parts/obdeleven-pro-scan-tool/024871obd01~a/?gclid=Cj0KCQjw_ZrXBRDXARIsAA8KauSYzRSiNaDiKMIGxcl-chrQ-DTUVLl8zEgMIDSn_H6O00N0troGN7gaAhfbEALw_wcB
Real Pro's :)
Underdog Garage the dirty carbon and sludge is not going inside engine ???!!!
Or it will burning with fuel and go out from exhaust manifold ?
Will this work with the Torque Pro interface on android? Plugs into obd2 and connects via Bluetooth to android.
why not walnut blast?
Or you can use 2 bottles of spray egr clean direct in intake hose after air filter. You will have a clean intake egr also and much cheeper 😉
i tried one, but how do you know it has any effect?
I may have to try this as I dont have room to work or time to give to this.
@@yavorm.7503 You would need to pickup a cheap endoscope to run into intake to take a peek. Sprays never do as good a job as walnut blasting or scrubbing but they are good to do every oil change.
Those sprays are useless especially if the car already has several thousand miles on it. I wouldn't risk spraying chemicals through the intake not knowing which valves are closed or open. Anything dislodged could get into the cylinder and fluid could get into the cylinder and cause a potential hydrolock. Also, spraying these products doesn't even reach 20% of the buildup at each cylinder. There's a reason media blasting and physical cleaning of the valves exist. There's no cheap, fast, or easy way to avoid having to physically clean the actual intake ports and valves.
They rarely work, and even if you do manage to loosen up carbon it’s going right into the combustion chamber.
Many workshops offers a cleaning of the engine by connecting to a machine with additives. Wold this method have a positive effect on carbon buildup like this?
J Wester Good question. I think the method would have a positive effect but there are a lot of variables that might determine how effective it is on removing carbon buildup. Things like how much carbon buildup there is to clean off, what kind of chemical additive is used, and how long the machine runs and cleans would all make a difference the results. It also might depend on how close to the intake ports the machine deposits the chemicals. It couldn’t hurt to try it for cleaning off carbon buildup.
Are vw and Audi primed to this ?
so ho Newer vw and Audi models are susceptible to it with direct injection rather than port injection. But any make with direct injection can have trouble with carbon buildup.
Just seeing this and have a question: why this method and not walnut media blasting? the pieces need to do this cost around the same and it seems to be faster. Just curious since I need to do mine and need to weight the pros and cons of each
David Santiago Thanks for your question. We had to weigh those options too when deciding whether to manually clean or walnut blast. We didn’t walnut blast for a couple reasons. We were trying to turn this car around quickly and we didn’t want to wait on the walnut blasting kit to show up. We also didn’t want to deal with the potential mess of walnut shells and debris. This option worked best for us at the time. When we do it again we’d like to try the walnut blasting kit and compare which works out better.
Would walnut blasting be done with the same amount of disassembly or would more be required?
Solvent cleaning seems like the way to go if you don't have an air compressor at all to use with a blasting kit.
Hollis Tollefson I believe it’s the same amount of effort. You still need to get the intake manifold off completely and hook the vacuum system up to the intake runner to vacuum out the walnut shells. So it’s just as much disassembly. The process of cleaning might be quicker, but that’s true you do need the air compressor for it.
I’ll be doing a carbon cleaning on my mk7 GTI in a couple years, so we are gonna compare what the walnut blasting is like to the soaking and scrape method.
Is it 2 valves per cylinder on the 2.0 tsi vw engine?
There are 2 intake valves per cylinder on the 2.0 TSI. 4 per cylinder if you count the exhaust valves.
They said show the finished product
Just use HHO gas and it will do a better and easier job.
I saw a video of a badly carboned up 1.4 tsi engine it didnt make any difference the before and after on the valves was the same they also tried crc intake valve cleaner sprayed it into the intake pipes and it didnt make a difference either if anything there was more carbon
Have question. I have GTI ...recently bought ... it consumes more oil. After 1200km almost 3 liter of oil gets consumed. What can be the problem. ... there's oil even in air intake area ..
Will this be problem of turbo or PCV ....
I am changing PCV valve tmrw .... but not sure ...whether this issue is something else ..
There's no leak unerneath the car ....
Oil gets very much bad after 100km.... while putting dipstick ...I could feel the oil has become heavy after just 100 km.....
Not getting what's the issue ...
Hi Shyam, to me it sounds more likely turbo related, perhaps you have a turbo oil leak which is leaking oil into the air inlet? How did the PCV valve look? If it wasn't severely oil covered it sounds like that is functioning normally. I would check if you have any blue smoke coming out of your exhaust. It might indicate you're burning oil on the exhaust/turbo side.
Also is this a new GTI? or used? If used what year and how miles or kilometers?
i'm thinking PCV since those are known to get bad. but if oil consumption is 3 litres at 1200 kim. something tragic happening there. do you see oil leaking on the garage floor? probably need some gaskets changed at that level.
Great video. Is there a way to avoid getting this much carbon build up?
Thanks for watching! On the direct injection engines it's hard to avoid the carbon build up since there's no fuel washing the back of the intake valves and runners like in a port injection engine. Eventually it does build up.
We've heard of steps you can take to "slow down" the buildup. Some people install a "catch can" onto the PCV unit to catch some of the carbon deposits when exhaust gases are recirculated, sort of like a filter that you periodically empty. There are aftermarket companies who make catch cans for Volkswagens and Audis. Sometimes you can drive the car harder to try and break up some of the deposits (Driving at a higher RPM, rapid acceleration on highway entrance ramps, etc.). Some people will run carbon cleaning chemicals in the gas, but we're not sure how effective it is.
We hope this was helpful.
Underdog Garage Thanks a lot. I bought the car used 3 years ago and can't feel or hear any difference. When will I know that it has carbon build up? Is there a way of hearing it? Just had a big service done with new oil and spark plugs at an authorised VW dealer, and he didn't mention anything out of the ordinary. I am just a bit confused as I mainly do short trips (15-25 mins each way).
Gotcha. How many miles are on your car now?
Carbon deposits build up slowly, so it can be awhile before you start seeing problems. Most of the carbon build up issues we've heard of start happening in higher mileage cars (light buildup around 30-50,000 miles to heavy build up in 70-80,000 miles).
If you have significant carbon buildup you might have engine misfires when starting the engine cold, say in the morning. You might get a check engine light from those misfires. You could have drive-ability issues, loss of engine performance, engine shuttering. The VW Jetta GLI in this video was at 80,000 miles when it started exhibiting these symptoms.
With an oil change and spark plug replacement a shop is probably not going to check for carbon buildup since it's not visible from outside the engine, and the inside of the intake manifold isn't accessible. Your drive time probably won't affect the rate of carbon buildup. It's a combination of a lot of factors (mileage, driving style, quality of fuel).
Underdog Garage Okay. It bas 79.000 km on it, so I guess I'll have to wait for those symptoms and hope for the best. These GDI engines are really causing more problems than help!
Yeah it is unfortunate that these engine setups cause performance issues over time, all in the pursuit of fuel efficiency. We hope you don't get bitten by the engine carbon bug too bad!
Wouldn't the metal brush + drill damage the intake ports itself by being too abrasive?
Thanks for this video! good job guys!
Lucien L Thanks for watching! For the brushes we used a brass and nylon brush. It’s more forgiving than a steel wire brush, so it doesn’t damage the valves or intake ports. With the drill we also used light to medium pressure on the intake ports too while brushing so we didn’t risk scarring any of the metal.
Brass is used on anything aluminum as it is softer on the hardness scale. We use brass tools to chisel out hardened plastic in aluminum molds at my job for this exact reason.
Just blast whalnut that its easy
engine engineering flaw from volkswagen. a vw owner should not have to spend $1000 to $1500 for this cleaning job.
That isnt a flaw from vw. Its a flaw from the direct injection design that many manufacturers use for efficiency reasons. I fixed mine with Water/Methanol Injection. In Europe I believe some VWs have direct injection AND port injection which also fixes our problem. If i remember correctly US emissions prevents them from doing this in the U.S.
@@landonmiller245 i don't see how its not a flaw from vw. they chose the part to work with. they have their final stamping on the car.
golfmaniac007 it’s not a flaw it’s just a downside of the popular DI design. I’m sure they would’ve loved to do duel injection but like I said. It’s just like any other maintenance where if you don’t keep up it will affect performance. Do you think that we should all still drive air cooled engines? Is water cooling a flaw because to get maximum performance you should flush your cooking system every 100k miles? No, it is just an advancement in technology that requires some added maintenance. Even if you don’t do it yourself and pay a shop to your fuel savings from being direct injection are much greater. Also, it can be easily remedied with water meth injection if you’re worried about it. My buddy got his done for 400$ where I live
@@landonmiller245 In US Toyota uses both DI & PI. I think even ford uses both. I own new 2017 Passat & per dealer VW considers carbon cleaning maintenance as a preventative maintenance. I think VW is trying to do cost control by not implementing here thereby making customer take care of that issue. Now most of their models uses fake exhaust to cover up black soot.
Except Toyota & Ford most brands uses DI now. I heard hyundai for 2020 or 2021 they have also adopted PI now.
3 rounds and soaking for 20 min seems to equal 4 hours total. 😬
Yeah it's not a quick process by any means. 3 rounds might've been overkill, but since we were in that deep we wanted to be as thorough as possible and break up as much of the carbon deposit as possible. The nice thing was we could work on other stuff while it was soaking.
What it really needs is Off Carbon Repellant to keep awau all those pesky biting and stinging carbon atoms.
NICKEL antisiezed or nickel plating will prevent carbon build up. Best example is the spark plug.
Guess what, you need to do this every 30-45k mi on your TSI engine or else you will lose power and long run the engine can explode if it's under too much compression.