GMC 14061685 Bearing,Clutch Pilot

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The clutch pilot bearing is a needle roller-type bearing that supports the front of the transmission input shaft and is pressed into the rear of the crankshaft. It does not require additional lubrication as it is greased at the factory. When removing the clutch components, it is important to inspect the pilot bearing for excessive wear, scoring, dryness, roughness, or any other damage. Removal can be done using a special puller or by using a solid steel bar, wood dowel, or socket with a fixed bolt. The bar should fit snugly into the bearing. Before installation, the bearing and the area behind it should be packed tightly with heavy grease to eliminate air. To install the new bearing, lightly lubricate the outside surface with grease and use a soft-face hammer to drive it into the recess. Some bearings may have an O-ring seal that should face outwards. Finally, reassemble the clutch components, transmission, and other previously removed parts, ensuring that all fasteners are tightened to the recommended torque.

The clutch pilot bearing is a needle roller type bearing which is pressed into the rear of the crankshaft. It's greased at the factory and does not require additional lubrication. Its primary purpose is to support the front of the transmission input shaft. The pilot bearing should be inspected whenever the clutch components are removed from the engine. Because of its inaccessibility, replace it with a new one if you have any doubt about its condition. If the engine has been removed from the vehicle, disregard the following which don't apply. Remove the transmission. Remove the clutch components. Check the bearing for excessive wear, scoring, lack of grease, roughness or obvious damage. If any of these conditions are noted, the bearing should be replaced. A flashlight will be helpful to direct light into the recess. Removal can be accomplished with a special puller, but an alternative method also works very well. Find a solid steel bar which is slightly smaller in diameter than the bearing. Alternatives to a solid bar would be a wood dowel or a socket with a bolt fixed in place to make it solid. Check the bar for fit-it should just slip into the bearing with very little clearance. Pack the bearing and the area behind it with heavy grease. Pack it tightly to eliminate as much air as possible. Insert the bar into the bearing bore and strike the bar sharply with a hammer, which will force the grease to the back side of the bearing and push it out. Remove the bearing and clean all grease from the crankshaft recess. To install the new bearing, lightly lubricate the outside surface with grease, then drive it into the recess with a soft-face hammer. Some bearings have an O-ring seal, which must face out. Install the clutch components, transmission and all other components removed previously. Tighten all fasteners to the recommended torque.