Quote Originally Posted by garett View Post
google Subaru engine cleaner or upper engine clean
May be I can scrape off the soot on the piston crowns by inserting a flexi stem brush through the spark plug hole, attached to a drill?!!
Does that sound like good idea to you?
I mean, if the soot on the cylinder wall is helping me with a better pistion ring seal, then I shouldn't remove the soot on the cylinder walls, but remove the crud from the piston crown only?!
After that, I reckon I can use a vacuum clean to suck the dust out?
Thanx