How do you remove siezed head bolts on a mazda r2 diesel engine?

To remove seized head bolts on a Mazda R2 diesel engine, first, apply penetrating oil to the bolts and let it soak for several hours to loosen the rust or corrosion. Use a breaker bar with the appropriate socket to apply steady torque; if the bolt doesn’t budge, try gently tapping the socket with a hammer to break the bond. If the bolts are still stuck, consider using a heat source to expand the metal, or resort to bolt extraction tools or left-handed drill bits to remove them without damaging the engine block. Always ensure to work carefully to avoid further damage to the engine.