Head Gasket Block Cleaning Question...
|Below is a photo of my block after spending what seemed like hours cleaning the surface by hand. It seems like there's an endless amount of crude baked on to the surface. I used a permatex gasket remover product which seemed to work wonders. With the help of razor scraper and a green scotch pad I got off everything that I could possibly get off. My question is, the surface is not as clean as it would be if someone were using a pneumatic tool with a wire brush, or if you were to send it to a machine shop. How clean is clean enough? I think I could scrape for days and still get stuff off. I've read a lot of forums across the internet that say not to mess with the piston crowns because you can cause more harm than good. Any opinions on block surface cleaning?
2003 Saab 9-5 Aero B235R
Sport Wagon 2.3T HO Manual