aa2by2

hello,
i am researching decarbonizing intake valves. the conventional method is removal of the intake manifold.....something that i want to avoid. the simplest method is spraying cleaner (seafoam) into the intake, but the results are meager.

what about removing the spark plugs and pouring cleaner into the cylinder wherein a piston is near top dead center and where the intake valve(s) are open. the geometry of the 2.0 engine is such that the level of the cleaner would cover a good portion of the intake port and of course the intake valve. one would let the cleaner soak full strength for several hours. then simply suck out the cleaner, and then manually rotate the crankshaft to treat the next cylinder.

1) my concern is what damage might various cleaners (seafoam, bg44k, chemtool b12) do to engine seals and gaskets, the plastic intake manifold?
2) would the pair of intake valves be open at engine start status or just one? if only one is engaged for engine start, then only that one would be treated.
3) what cleaner might one select and how many hours for soaking?


advice? thoughts? feedback?

Dougrey

I don't see how that could work. That carbon crud is really baked on. I walnut shell blasted my valves. Pouring cleaners into your cylinders is not advisable. Really, there is no more effective way than blasting the intake valves. It's not that hard of a project.

1stGOAT

It cost me 300 to have mine walnut blasted - really only way to do it right.

aa2by2

however, takes 10 days!