At the point when the clutch is withdrawn, the transmission's info shaft and the motor's driving rod are turning at various velocities. The pilot bearing considers this distinction. This is the reason a faulty pilot bearing makes its most noise when the clutch pedal is completely depressed and the clutch itself is totally withdrawn. It's situated in the focal point of the crankshaft flange or flywheel. Pilot bearings are either bearings or bushings. The bearing kind can be ball, roller or needle bearings stuffed in oil. In the event that the producer suggests including bearing oil, be mindful so as to abstain from tainting the clutch circle or the outside of the flywheel. Pilot bushings are brass and implanted with lubrication. Including grease will really expand erosion with these delicate metal sort bushings. Check with the vehicle maker's proposals before adding any grease to a pilot bearing.