Sean Buick 76
I'm Awesome
Yes the water drizzled into the intake does help steam clean the combustion chamber however I’ve always used a spray bottle because the risk of hydro locking an engine with too much water is too high to risk it. If I buy a vehicle that’s got a dirty intake and combustion chamber I will use sea foam spray into the throttle body while it’s running till the can is empty. Shut the engine off and then the next day take it for a rip on the highway.Then there’s the water trickled into the throttle body trick too!
At 82k I’m not touching my heads, at least hopefully not for a while.
On my old 76 Buick it had 70,000 miles when I got it in 2003. It was so carboned up it barely could do a burnout. By 2010 it had burned so much carbon out the exhaust it was incredible. A boroscope showed that the combustion chambers were now clean. All I used was seafoam in the fuel and seafoam soak before leaving it to soak overnight. Also driven as a 16 year old would lol! The carbon buildup increases detonation and pre ignition as well.