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Steam cleaning the intake/head??

1.8K views 14 replies 11 participants last post by  Burnett03  
#1 ·
OK, so I heard through the grapevine that a cheap, and somewhat risky (especially if one gets too careless) way of cleaning the ports and combustion chamber is to inject water at a slow controlled rate to help remove carbon deposits and therefore potential hotspots that cause knock and damn timing retard.
What's the word on this? Anybody do this and (without hydrolocking ur engine) notice anything? Less timing retard? Or maybe someobody actually took the head off afterwards because they were so curious and lots of time on their hands to see if it actually did anything?
 
#4 ·
boostfanatic said:
My only advice is watch where you are spraying the water. A steam cleaner can get water through just about any seal or gasket its aimed towards.
LOL.. he is talking about actually injecting water into the intake/combustion chamber. Most of the time it's done through the hose that comes from the PCV valve to the intake.

Not spraying off the motor with a hose. :p
 
#8 ·
Yeah, I used to have a 1g, and did the automatic transmission cleaning (i think i saw it on vfaq..but this was over 3 years ago), but of course everything on that car was bone stock except for the k&n.....so obviously i didn't notice any real difference...but now I have a 2g that runs higher boost and has pretty much every bolt on. Of course it get plagued with timing retard every once in awhile, and I'm hoping that getting rid of any carbon deposits that might cause hot spots will at least reduce the incidences of timing retard.....
the thing is...it makes sense in my head that super heated water would clean off carbon, people use superheated water to clean anything.....supposedly the auto tranny burn does something but it just doesn't make any sense in my head as to how that be abrasive enough to clean the cylinders...
Oh yeah it's definitely a chance...i was scared the entire time when i did my 1g..my fingers were tired as hell from keepin the hose pinched lol.....
 
#9 ·
Burnett03 said:
i steam clean my pistons, valves, head daily at exactly 9 psi. My single stage water injection kicks in and does the cleaning then ;)
+1. included in that is spark plugs, entire intake system, inside of intercooler, too(summer months). without taking anything apart. eliminates knock, effectively raises octane level about 4 points, can completely eliminate heat soak. will drastically outperform seafoam, mccc, etc. allows higher boost settings, improves fuel economy, lowers egt's, but mine starts at about 6 lbs boost.
 
#10 ·
OK, I'm digging this up.

I've done this on my Saturn. I took off the intake piping and spraying CAREFULLY into the throttle body with a garden hose. It made lots of steam and a little carbom come out of the tailpipe. I tried this on the Eclipse but it didn't go so well. You see, I took off the intake piping but there was no signal from the MAF, so the ECU was thinking WTF? The Saturn has a manifold pressure sensor inside the manifold so I had no problem when doing that.

Anyway, which hose should I use to introduce the water? The hose connected to the intake piping before the throttle body or the hose leading to the intake manifold?