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Intake Valve Carbon Buildup: how can it be prevented?

tomahawk72

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Probably around the 60k mark you'd want to pull the intake manifold and use a walnut blasting kit with a custom molded/printed vacuum adapter. the intake faces the front so it shouldnt be terribly hard to get off. once every 4 years or so wouldnt be awful.
Pretty much my plan is to have it done around 50-60k just as preventative maintenance.
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Captain

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Clubs
 

Brian_J

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Not surprised at all.. very few Mavericks will NOT be driven on public roadways…. Which this device clearly says you can’t use it on the public roads and hiways.
That’s just some carb bs legalese.
 

MaverickAngler

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Not surprised at all.. very few Mavericks will NOT be driven on public roadways…. Which this device clearly says you can’t use it on the public roads and hiways.
🙄
 

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nick112288

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I'm also concerned about carbon buildup. Days of old all I did was take my vehicle out on the freeway (back country) where highway patrol usually didn't patrol and put the peddle to the metal. Just needed to get the RPM's up good and high and literally flush out the system. This did a good cleaning job, especially if I just did city driving, stop and go at low speeds. Well, the hybrid system with different transmission, if you want to call it that, prevents high RPM's. So I likewise am concerned about the carbon buildup. I was talking to an acquaintance of mine and he told me about a product he was told about. Called "Archoil AR6200 Fuel Treatment". I went to the web site and was impressed with what I read. So my question is to all those in Maverick Land, anyone have any knowledge or experience with "Archoil AR6200 Fuel Treatment"?
The hybrid 2.5 is regular old port injection. So unless something is majorly wrong carbon build-up isn't the same concern that the Ecoboost has.
 

anticonformista

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Would locating the point of entry for the "meth"anol upstream of the throttle body then be considered "snorting?"
 

GaMaverick

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This may slightly mitigate carbon buildup but not nearly completely. Source: I run a side business doing mobile valve cleaning for direct injection engines. I've seen it all to include engines with expensive air/oil separators and honestly, I see little difference between those and engines that have nothing but the "factory" plate style separator built into the block. The reality is that having the valves cleaned every 30k is something that should be budgeted for maintenance on engines that do not have a dual port/direct injection system.
Water/Meth injection will definitely clean the valves. I have a kit on my other car and the valves still look new with no coking on anything.
 
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FakeCowboy

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Water/Meth injection will definitely clean the valves. I have a kit on my other car and the valves still look new with no coking on anything.
Yes but the system is much more complicated to install and maintain than an air/oil separator and most people aren't going to install one.
 

SilverBullet2.0

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Another option to clean carbon build on the intake is to pour or spray sea foam through the throttle body. You can do it with the car running (two people) and because the engine is sucking in liquid the engine will want to stall. The second person is in the driver seat trying to keep the throttle at 2K RPM. If doing it by your self spray the entire can in the throttle body. Then start the engine and rev it up to 2K RPM.

My Dad & I did this with a Mini Cooper S that owned years ago. It's fun seeing white smoke clouds flowing out the tail pipe.
Here are videos to reference -



 
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Cherokee

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Methanol Injection.
I’d piss on a spark plug if I thought it would help my Maverick.
I see we’ve already got a guy on here with 160,000 miles and no Engine issues.
He drives the hell out of it and actually uses it as a truck.

I’ve not yet read or heard of one single incident of this problem, only people worrying about it.
 
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Cherokee

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Yes but the system is much more complicated to install and maintain than an air/oil separator and most people aren't going to install one.
Great avatar BTW,
Expect us,
Anonymous, 4Chan forever !
 

Master Blaster

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First off, if you have a Hybrid then it is port-injected and does not have the potential for Carboning up. the EcoBoost is direct-injected and does not wash fuel vapour over the intake valves except when the valve overlap is large. There already is a catch-can built on the side of the block where the PCV line is attached. Its not perfect, so adding a second catch-can will catch mostly water. If you use the correct TopTier fuel, the correct spec oil and don't live at the redline, you'll never see the issue. I had 186k on my 2013 2.0 and checked it just before I traded it for my Maverick. Almost no buildup. I think that the people freaking out and adding catch-cans use crummy fuel and oil, and have had negative experiences with poorly-designed injection systems on GM, BMW and other engines, not Fords.
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