Patent ID: 7644694

Claim:
A collapsible pushrod assembly for a motorcycle engine, comprising: a pushrod shaft including a threaded surface extending partially along a length of the pushrod shaft; an adjusting unit comprised of: a threaded portion extending partially along a length of the adjusting unit; and an un-threaded portion extending partially along the length of the adjusting unit, wherein the un-threaded portion of the adjusting unit is of different diameter than the threaded portion of the adjusting unit, wherein the threaded portion of the adjusting unit threads onto the threaded surface of the pushrod shaft, wherein the un-threaded portion of the adjusting unit is of smaller diameter than the threaded portion of the adjusting unit, and wherein, if the adjusting unit is threaded beyond the threaded surface of the pushrod shaft, the threads are disengaged and the un-threaded portion of the adjusting unit can be slid inside the pushrod shaft.