Patent ID: 8014934

Claim:
An engine comprising: a ring gear coupled to a rotatable member of the engine; a starter drive assembly comprising: a starter output shaft including a first end and a second end, said first end comprising a plurality of axial grooves circumferentially-spaced and extending from said first end axially toward said second end; a clutch assembly comprising: a clutch plate configured to engage the axial grooves of said output shaft such that said output shaft and said clutch plate rotate together during an engine starting operation; and a screw shaft selectively matingly couplable to said clutch plate, said screw shaft configured to engage said clutch plate during rotation in a first direction and disengage said clutch plate in a second direction such that said screw shaft and said clutch plate rotate together in the first direction; a barrel assembly comprising: a first end configured to threadably engage said screw shaft; and a second end comprising a pinion gear configured to engage said ring gear during the engine starting operation.