I was looking to actually take off the manifold and clean it manually, I'm pretty confident about doing it but are there any guidelines or writeups on removing it anyways? I tried looking, thought there was a writeup a while ago but couldn't come across it. Thanks in advance

 

Forgive my ignorance, but is the VQ motor's manifold cast iron, or stamped steel?

I detailed the engine bay of my old Supra which has a cast manifold... I used a brush-on high heat paint purchased from Eastwoods and the results were awesome. All it required was a light sanding with a wire brush before painting. I was able to do with the manifold still on the car.

I think I can dig up before/after pix on my hard drive at home tonight.

 

I want to clean the inside, not just the top.

 

1. disconnect hoses
2. remove screws
3. remove manifold


or...use seafoam to clean the manifold without all that work

 

the VQ30DE-K intake manifold is plastic

 

seafoam wouldn't clean as well though, no? I mean this would make for a new gasket, and clean upper manifold altogether, I dunno, I'd just feel better about knowing how clean it really was as apposed to seafoam, im not too partial to the project.

 

ahh... well I was speaking of thr exhaust manifold as Killz didnt specify intake.

Heres my exhaust manifold before/after pix as promised anyways:

 

Seafoam isn't as good as every1 makes it seem. I did it on my mustang then took the manifold off and it was exactly the same. I might be able to find the pix if I dig. Not only that but a lot of the time it will mess up your o2 sensors.

 

Why do you feel you need to clean the inside of the intake plenum? It will have a "normal" coating of skunge created from the breather vapors and EGR, but it has a relatively smooth surface finish compared to some Al alloy manifolds/plenums and after any "cleaning" it will soon build up the "normal" aforementioned crap anyway. Are you having some engine performance issue?
The throttle plate area/IACV port of the Gen.5 Throttle Body is what sometimes gets gummed up to a point where it sometimes causes a problem.

 

I was actually planning on taking off the TB with the IACV still attached, examining, and cleaning the plate and TB itself I don't really have engine trouble, I have 90k miles though and felt like doing something usefull, as a tuneup and cleaning

 

Look for the write up on changing out the plugs. It'll tell you exactly how to remove everything.

You can re-use these gaskets so long as you don't muck em up in the process.

 

But this is for a 2k? not 2002-2003 as you dont need to take the manifold off to change plugs on a 2k.. unless its the same for 02-03, I'll still look obviously thanks.

 

What I do is just take off the straight rubber hose between MAF and TB, take a clean cloth, open the flap and wipe it clean along with TB walls... Then, start the car, take a TB cleaner and spray generously inside... After that do the seafoam upper intake brake booster trick and that's it... Taking off the upper intake can be PITA and unnecessary IMO... Also if you are concerned about the oil fumes, put a oil-seperator on your PCV line to prevent future gunking up of the intake...

 

i've had the oil blowby for a quite a while now I was thinking of taking the TB off to work on it in order to get the inside as well. I think ill stay away from the manifold removal at this point though.