ECOBOOST=dirty engine

[abs99]

I have catch cans on both my G8 Gt's. Do you have a diagram as to where to put a catch can on EcoBoost engine. Mostly need the location of inlet and outlet locations on engine, as I can get enough hose and find a suitable location for a catch can.

Also looked up the product from BG and articles on cleaning EcoBoost intake system. When I attempted to look up the part numbers on their site, couldn't find any prices or data.

I pulled off the beauty cover and saw a flat plastic pancake looking component sitting on the rear valve cover, passenger side, seated in the valve cover itself. I think this is the OEM catch can. As it fills with oil, it will overflow back into the valve cover itself, a very ingenious design. Coming out of the top of this component is a solid plastic line that goes to the throttle body. I'm not positive, but I believe the PCV is on the throttle body itself. Given the car already has the catch can, I was thinking about adding an inverse oiler (http://www.ampcolubes.com/index.php?content=products) to the PCV system to feed a low dose of cleaner into the intake. Could be water, Lucas Fuel System cleaner, Marvel Mystery Oil, Techron, Sea Foam, gasoline, etc. It strikes me that by adding one of these cleaners could go a long way to keeping the intake clean.

Thoughts?

 

[ycode90]

NEVER been a noob.

 

[gmorrell]

I pulled off the beauty cover and saw a flat plastic pancake looking component sitting on the rear valve cover, passenger side, seated in the valve cover itself. I think this is the OEM catch can. As it fills with oil, it will overflow back into the valve cover itself, a very ingenious design. Coming out of the top of this component is a solid plastic line that goes to the throttle body.

That could be much like some BMW PCV systems, they attempt to separate the oil mist from the PCV flow and drain the liquid back to the crankcase.

BMW M5 PCV oil separators.
1 and 2 are the separators.
14 and 15 are the vapor collection lines from the valve covers.
5, 8, and 10 are the drain lines back to the crankcase.

 

[abs99]

That could be much like some BMW PCV systems, they attempt to separate the oil mist from the PCV flow and drain the liquid back to the crankcase.

BMW M5 PCV oil separators.
1 and 2 are the separators.
14 and 15 are the vapor collection lines from the valve covers.
5, 8, and 10 are the drain lines back to the crankcase.

Yes, similar concept although the ecoboost design doesn't look quite as elegant as what BMW has produced.

Andrew

 

[PonySHO]

I pulled off the beauty cover and saw a flat plastic pancake looking component sitting on the rear valve cover, passenger side, seated in the valve cover itself. I think this is the OEM catch can. As it fills with oil, it will overflow back into the valve cover itself, a very ingenious design.

Could this design be responsible for making the oil really dirty? I changed my oil today at 3700 miles and it looked like it hadn't been changed in 30,000! It was black as **** and thick. That was Motorcraft full synthetic. That oil was so dirty that when I checked the oil level after the oil change, the new oil already looked like it had a few thousands miles on it. I started a thread on this in this section.

 

[SHOZ123]

On a turbo you need a catch can on both sides of the engine's PCV system. One inline from the oil separator to the intake, another from the valve cover to the pre turbo intake.

The blowby gasses are a combustion byproducts and are a combination of oil and water. It's disgusting that Ford dumps this back into the oil pan.

 

[Laminar]

Ford tested the CR@P out of this engine and I'm sure they designed around any issues with these deposits. Or maybe they are just nothing to worry about... It is an engine - a dirty, nasty, and harsh environment. 0-6,000 explosions every second

A 4-cycle 6-cylinder engine fires 3 times per revolution. Six thousand RPM would be 18,000 explosions per minute, or 300 per second.

 

[darreli]

Well it's 210 bucks for the fuel induction service....tempted to give it a shot. I would probable even be able to do the before and after dyno runs. I only have 15,000 miles on my car now but after looking at the bgfueltest website I'm tempted to give it a shot.

 

[itguy08]

I'll be very interested to see the dyno results if you get it done.....

My guess is a negligible difference.

 

[abs99]

Here are some links to folks with non-Ford direct injection engines who are having major problems with carbon build up on their valves. The issue has been documented with VW, Audi, Porsche, BMW and Mercedes engines, all direct injection. I have read many theories as to the root cause being high volatility oil, too frequent oil changes, not frequent enough oil changes, the lack of a catch can on the PCV system, the effect of the PCV + EGR system causing buildup, the lack of fuel spraying on the intake valves to clean them, the fact that the intake valves are running too cool so the carbon condenses on them, and so on and so forth. I don't think anyone really has a full understanding of all the variables involved. Regardless, I think we probably need to worry too . . .

There are many, many, many threads on this issue. Quite often the owner of the vehicle will notice poor/rough idle and a loss of power. Eventually the intake manifold is removed to reveal the gunked up intake and valves. After hours of cleaning (usually 10-20 hours of effort), the valves are cleaned and the manifold goes back on. Some folks have dyno tested before and after and they gained 30-50hp or more (back to stock levels) after the cleaning. Each link below has some photos of gunked up Audi engines and examples from other manufacturers can be found quite readily as well.

http://www.audizine.com/forum/showthread.php/336352-Audi-FSI-Engine-Carbon-Build-up-Megathread

http://www.audizine.com/forum/showthread.php/334489-RS4-Intake-Manifold-Carbon-Build-Up-amp-Clean-Up/page3

http://www.audizine.com/forum/showthread.php/389970-Official-RS4-Carbon-documentation-thread-quot-Discussion-quot?p=5735227#post5735227

Nice YouTube video:

http://www.youtube.com/watch?v=wAiViR8x0Qo&feature=player_embedded

http://www.audizine.com/forum/showthread.php/297492-My-RS4-under-the-knife.../page3