A core is your old worn out (yet still rebuildable) engine or part that is required as a trade in when you purchase a remanufactured or sometimes a new one. An acceptable core or rebuildable core is one that is not broken, damaged beyond repair, or so severely cracked that is can no longer be machined back to proper working condition.
Jamaica is part of the continent of North America. North America includes Canada, the United States, Mexico, and the islands of the Caribbean Sea.
1 Its geographic map coordinates are: 18 15 N, 77 30 W. Jamaica lies 90 miles due south of Cubâ¦. 2  Europe on a Budget: 21 Free Walking Tours in Europe Walking tours can be a great way to get to know a new city.