Bender1
Banned
I can't answer that question effectively.
6
Carbon Buildup 101
- Thread starter Bender1
- Start date
I can't answer that question effectively.
Calvinball
Go Kart Champion
Access your databanks, damnit!
Zillon
Go Kart Champion
That sector of his hard drive was corrupted.
Calvinball
Go Kart Champion
Corroded by Eagle Rare.
catch cans help and definitely do slow it down but won't eliminate the issue. Vent to atmosphere is best i believe. But the mesh design has to be useful without restricting airflow, so i'm sure some of the thinner/higher temp blowby can still flow through. I always thought the biggest benefit was to get rid of the PCV that has been known to fail on 2.0T engines. Zhijj is dealing with that issue right now isn't he?
Bender1
Banned
Not really correct
Correct.
A VTA Catch Can will have an impact. A traditional catch can has been shown (multiple times) to do exactly jack squat.
Bender1
Banned
Calvinball
Go Kart Champion
I would hope so, at 7:19 am.
I'm a bit hungs though.
Since this is a sticky, I will contribute something. Bender and I did get as far as "uh...I dunno?" last night in deciding whether carbon buildup is an issue with the TDI. We did ascertain that the TDI has a ccv and an egr, not a pcv. Take that for what it's worth.
like i said i think vent to atmosphere is best, but i still think the traditional one should do something. what would the oily residue that they pour out do if it wasn't caught in the catch can?
Zillon
Go Kart Champion
Water vapor that circulates through the engine on a cold startup.
project92raddoslc
Go Kart Champion
Thanks Fellas, I try to make things simple and easy.
I'd say we're seeing HUGE build-up around 75k miles with most of the TSI/FSI cars. I will probably do mine once I get closer to 60k miles. I'm currently at 55k.
Cadubya
Autocross Newbie
hmm i guess.
also i forgot i had this picture. these were my valves after 80k. there was more buildup on the walls than the actual valves.
What are your normal driving habits? Distance? Speed?
johnny_p
Go Kart Champion
Also, other possible problem sources could include:
-Oil seepage through the head, past the valve
-Oil seepage through turbo seals
-EGR (exhaust gas recirculation) system would provide a decent amount of soot right back into the intake tract. Think about how black our exhaust tips get...
It pretty much all stems from not having anything "washing" the intake ports each stroke.
-Oil seepage through the head, past the valve
-Oil seepage through turbo seals
-EGR (exhaust gas recirculation) system would provide a decent amount of soot right back into the intake tract. Think about how black our exhaust tips get...
It pretty much all stems from not having anything "washing" the intake ports each stroke.