Engine coolant is what’s supposed to keep the overall engine within operating temperature. Water pump should have to check whether there is a leak from the pump. Machine have to be improved in aspect of products forming and process technology. The crankshaft must be strong enough to take the downward thrusts of the pistons during the power strokes without excessive distortion. In most instances, replacing an engine with a cracked engine block is the best solution, particularly if the customer is interested in a salvage engine or a rebuilt engine (both of which are more economical than crate or remanufactured engines).