Fuel system decarbonizing

[Schrade]

Originally Posted by Paul Workman

Mechanics have been using ATF or just plain tap water to clean carbon out of engines for years! AND, as I inadvertently discovered when I developed a coolant leak while doing a 1/4 mile pass, coolant will get everything sparkling clean as well - I mean it looked like a never run engine!

Ever wonder where the phrase "blowing smoke up your ***" came from?

Blowing smoke...

I've heard of spraying water into the intake to boost the squeeze in the holes (while you're spraying the water), and break loose deposits, but never seen any before and after shots showing effectiveness - or even video showing what comes out of the exhaust.

Might be interesting to try it and see, with a cam recording the exhaust.

Anybody tried water spray? See anything?