Cleaning inlet manifold.

[TimE-J]

Any one got any ideas on how to clean the inside of my inlet manifold.

To cut a long story short I sent my inlet to a local company to get aquablasted and they said they would bung reverting up so no shot would enter the manifold but they didn't so now I've cleaned it as well as I can but I'm still paranoid that there is shot stuck in the oily carbon deposits in my manifold.

I've tried most cleaning products I can get my hands on including some strong acid for cleaning engines but still hasn't shifted all of the residue. The bits of the manifold I can get to are quite clean it's the bits you cant see I'm worried about.

Any help would be great!

[SteveH]

After welding and die grinding my manifold I stuck a hose pipe in every runner for 20 minutes and gave it a good shake about with soapy water. That sorted all the bits of swarf. You could use a pressure washer if you have one.

[newsh]

Dishwasher?

[TimE-J]

Yeh I've jet washed through over and over again. Like I said I'm sure I can't see and shot in the manifold but there's alot of surface area I can't see.

[TimE-J]

[europeanme]

do you know what was in the aquablast solution...as some places are using plastic beads which disintergrate when agitated..

[Error404]

Buy some Marine Clean, mix up a strong solution qand leave it to soak for 24 hours, then use bottle bushes to scrub it out, then soak it again, then power wash it. Of you could find a friendly local place to put it through a high temp parts washer

[terrybullwon]

Cut it open clean it. Re weld

[SteveH]

Cut it open clean it. Re weld

Or stick it back on the car and take it for an Italian tune. That'll get all the bits out

[Sonic]

I can advise you that you really don't want any bits left inside, unless you fancy another rebuild?

[Jamo]

Have you tried petrol? Bahnstorm told me this was a great way to remove oil residue and I used it on my Intercooler and it was spanking clean inside after a soak.

[TimE-J]

Thanks for the tips guys. I haven't tried petrol yet so I'll give that a go tonight. If petrol doesn't work then I'll have to go and get some marine clean, I'm just being impatient as its the last thing I'm waiting for to bolt back to my engine.

@sonic, the last thing I want is to rebuild it again and it's your experience that has made me even more cautious.

I shall report back later on.

[TimE-J]

@terrybullwon, I did consider taking it to the local fab shop to get it cut and re-welded but Im sure I remember someone saying before that the Ali the standard manifolds are made of isn't the easiest to weld.

I don't know what shot was used it was almost white in colour from what was easily visible, but the shot we use in work in our normal shot blaster Is almost pure white as well.

[saltinot]

Extrude Hone it, then it will be clean.

[Jamo]

Extrude Hone it, then it will be clean.

Do you know how much that costs in europe? you could buy a Wagners IM for the price of that work. Shocking in reality