Patent ID: 7322750
Filing Date: 2008-01-29
Classification: F02F,F16C

Abstract:
1. A locking engine splay cap for an engine block comprising: a splay cap having a top side, a bottom side, a front side, a rear side, a right side, a right side shoulder, a left side, a left side shoulder and two or more separated mounting holes from said top side through said bottom side; and said bottom side having an engine block interface and a cap half bearing seat having a cap seat wall; and said engine block interface having two or more cap slots which transition from said front side to said rear side separated and symmetrically positioned relative to a crankshaft centerline between said cap seat wall and said right side and said left side; and an engine block base having two or more threaded mounting holes separated substantially equivalent to said mounting holes, a main channel having one or more engine block half seats and two sidewalls, a right splay cap channel, and a left splay cap channel, each of said channels slightly widened to mate said sidewalls intimately with said cap slots; and each of said splay cap channels having an outer wall, a distance between said outer walls less than a width between said shoulders of said splay cap and capable of providing an intimate mate between said splay cap and said engine block base with a secure registration; and two or more engine block protrusions extending from said engine block base between said sidewalls and said right splay cap channel and said left splay cap channel, said protrusions of a size and position to mate with said cap slots and register said splay cap with said cap slots and said engine block base splay cap channels outer walls whereby when said engine block interface is mated with said engine block base and two or more attachment bolts are threaded through said mounting holes and into said threaded cap holes cap chatter and deformation is minimized.