intake manifold cleaning gone wrong

[CTerry]

Im trying to clean my intake. I soaked it in degreaser overnight not even thinking about the annodized aluminum. Now its all black and powdery. What do I do now? The inside is not that clean, and I really dont want to polish it all off. I was thinking about just painting it at this point. Any suggestions?

THanks Chris.
04 6.0L

[Lilpooh]

I don't think the intake manifold is anodized, it's raw cast aluminum. What was the degreaser agent you used?

[CTerry]

Purple power, purple something. it was from homedepot in the 5 gallon jug.

[windrunner408]

Yea these manifolds are cast and not anodized. I'm not really sure what to tell you to do on this one.

[PGreenSVT]

Pressure wash it.

[Karls03]

Originally Posted by PGreenSVT

Pressure wash it.

The Victor Jr on my hot rod took a ride through the machine shop's parts cleaner and came out with this grey/black film on it, probably what yours looks like. Anyway, I used a spray cleaner from "Circle K" auto parts that worked just fine. I think it was a wheel cleaner.

Might be just as easy to use the de-greaser setting at the car wash (the local on here is SImple Green) then pressure wash it. I'd be pressure washing the insides anyway after spending the night in solvent.

[92f150300six]

Take a pic of it

[mx730md]

is it just the carbon that broke loose? if it wont come of i would think you could hit it with some aluminum brighter acid or some aluminum wheel cleaner let it sit for 30-1min no longer and powerwash it off repeat till you get the look you desired just dont let it sit on for no longer then a 1min

[CTerry]

Thanks guys the pressure washer did the trick

[shadyford]

Purple power is good non toxic cleaner, even thou it says keep away from painted surfaces I dilute it and use it to clean all sorts of stuff, and you don't get in trouble if it gets in the drain and it won't kill the grass.