AEU2792 - Drive Unit

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Drive Unit for the Lucas Type M113 starter motor used on the 2.5L 4-cylinder naturally aspirated diesel engine. The drive unit carries the starter pinion together with its overrunn ing (one-way) clutch. When the starter is energised the pinion travels along the armature shaft to mesh with the flywheel ring gear and crank the engine; once the engine fires the overrunning clutch lets the pinion freewheel, protecting the armature from overspeed until it disengages. Worn pinion teeth or a slipping clutch typically show up as a failure to crank or a whirring starter that spins without turning the engine. Show more