Cleaning
1. Clean top surfaces of pistons and cylinder block.(a) Turn the crankshaft, and bring each piston to Top Dead Center (TDC).
Using a gasket scraper, remove all the carbon from the piston top surface.
(b) Using a gasket scraper, remove all the gasket material from the cylinder block surface.
(c) Using compressed air, blow carbon and oil from the bolt holes.
WARNING: Protect your eyes when using high-pressure compressed air.