Patent ID: 6196166
Filing Date: 2001-03-06
Classification: F02F

Abstract:
An internal combustion engine comprising an engine body defining a cylinder bore for receiving a piston to define a combustion chamber and a crankcase chamber in which crankshaft driven by said piston rotates, a valve mechanism for controlling the induction of at least an air charge into said combustion chamber and the discharge of exhaust gases therefrom, said valve mechanism including at least one valve shaft rotatably journaled by said engine body, a timing drive for driving said valve shaft from said crankshaft including at least one flexible transmitter disposed at one end of said engine, a coolant jacket formed in said engine body for cooling said engine body, a coolant opening formed in said one end of said engine body in an area circumscribed by said one flexible transmitter, a coolant mainfold affixed to said engine body and having a fluid passage formed therein communicating directly with said engine body coolant opening for circulating coolant, said coolant manifold overlying in part said one flexible transmitter, and a timing cover affixed to said engine body contiguous to said coolant manifold and covering a remaining portion of said one flexible transmitter, said coolant manifold and said timing cover each being removable from said engine body without removal of the other.