The Ford Barn

Synchro909 · 04-06-2025, 02:25 AM

IMO, the best way to removed carbon from the combustion chamber is to start the engine and run it till warn. Take a spray bottle and spray water into the intake till the engine falters but does not stop. Let it run for a short time further, then spray in more water till it stops. Leave it overnight and start it is the morning. The carbon will be blown out of the exhaust pipe.
The way this works is the carbon has been wet and time allowed for the water to soak into the carbon. When you start it next day, the high temperatures of the combustion chamber causes it to vaporise instantaneously, dislodging the deposits, like mini explosions.
Anybody who has had coolant leak into the cylinder while the engine is running, will have seen how clean the head it in that cylinder when they remove the head.

04-06-2025, 02:25 AM	#2
Synchro909 Senior Member Join Date: Jun 2014 Location: Melbourne, Australia Posts: 8,041	Re: HC head conversion advice IMO, the best way to removed carbon from the combustion chamber is to start the engine and run it till warn. Take a spray bottle and spray water into the intake till the engine falters but does not stop. Let it run for a short time further, then spray in more water till it stops. Leave it overnight and start it is the morning. The carbon will be blown out of the exhaust pipe. The way this works is the carbon has been wet and time allowed for the water to soak into the carbon. When you start it next day, the high temperatures of the combustion chamber causes it to vaporise instantaneously, dislodging the deposits, like mini explosions. Anybody who has had coolant leak into the cylinder while the engine is running, will have seen how clean the head it in that cylinder when they remove the head. __________________ I sometimes wonder what happened to the people who asked me for directions. Even at my age, I still like to look at a young, attractive woman but I can't really remember why.