Abstract: 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.

Abstract: A starter head for the starter of an internal combustion engine includes a motor shaft, on which a starter pinion is mounted for axial sliding movement. A free wheel and a driving sleeve are secured on the starter pinion by means of a securing shroud. The starter pinion has a bore over the whole of its length, with the motor shaft being displaceable within this bore. The starter has a device for limiting the axial throw of the starter head. The throw limiting device comprises a stop ring cooperating with a further ring fixed on the free end of the engine shaft within the bore of the pinion. The stop ring is fitted in a semicylindrical groove formed in the bore.