Starter for a motor vehicle engine, having improved sealing means

摘要

A motor vehicle starter has a starter head which is driven in rotation by a motor shaft and which is displaceable in sliding movement between a rest position and a working position, with the starter head projecting outside the starter casing. A sealing gasket is arranged on the starter head and comprises a seal body which is fitted on the latter in front of an external transverse face of the casing. The seal body carries a frusto conical lip which is joined at its leading end to the seal body. The lip extends axially towards the rear so that its free terminal edge is in contact with the external transverse face of the casing over the whole periphery of the aperture in the casing, but only when the starter head is in its rest position.