Section 0 - Engine Disassembly and Assembly - Group 00 Engine Disassembly (0-01) M11 Page 0-49 NOTE: When the piston pin is removed from an articulated piston, the skirt will separate from the crown. Use care to prevent damage to the piston. Mark the cylinder number the piston, crown, skirt, and pin was removed from on the parts to make sure they are installed in the correct cylinder if they are used again.