TM 10-3930-659-34 4-5. CYLINDER HEAD ASSEMBLY REPLACEMENT (Con’t). CAUTION • DO NOT use tools to separate cylinder head from engine block.  Cylinder head or engine block may be damaged and leaks may result. • DO NOT rotate crankshaft with cylinder head removed.  Failure to follow this caution may result in damage to parts. NOTE Tap cylinder head with soft hammer if cylinder head sticks to engine block. 3. Using suitable lifting device, remove cylinder head (2) from engine block (4). 4. Remove gasket (3) from engine block (4).  Discard gasket. 5. Remove suitable lifting device from cylinder head (2). 4-15