How remove carbon inside intake manifold?

[Daryl]

Hot chemical strip? Pressure washer only? Big ass flexible pipe cleaner + some kind of spray like Super Clean, brake cleaner, or intake cleaner??

Going to have it ceramic coated immediately afterwords. Maybe the TB, too.

 

[ttocs]

it is just oil and crap, no need to overthink it. Dishwashing soap or simple green will break it down, a pressure washer if you have access would make it a little faster but I would probably wrap some plastic around the snout/input to seal it off and then I would fill it with soap/water and let it set over night or for as long as I could. After that just rinse it out as good as possible and then let it dry.

 

[Daryl]

Filled it 2/3 with a cocktail of Super Clean+ brake cleaner+ Simple Green then added boiling water. Let it stew a while then blew the snot out of it with 3000psi pressure washer…. and STILL didn’t clean as I had hoped. Guess I’ll cough up the $200 for the hot chemical dip

 

[ttocs]

just leave it in overnight first. You might also look at walmart for a product called citristrip. It is a citrus based paint stripper so no toxic fumes, but it does take a while to work. I have used it to strip powdercoating overnight it should do the same here.

 

[96blak54]

I mean is the carbon built up to a thickness? Seams normal to me to see carbon coated inner'ds.

 

[badass98svt]

You need to scrub. Not just a power washer. Brake clean and Castrol Super Clean will get it done.
Why do you need to clean it? Is it all built up? Every car has a layer of carbon in there

 

[Daryl]

No, it’s nowhere near the point of being clogged or anything like that. Just thought how much better and crisper(?) it would run if it were in a Day 1 right off the production line condition. But if you expand the picture, you can see it’s more like a “film” of carbon coating, not built up or clogged by any measurable amount.