Toyota 90363-40050 Bearing

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The clutch pilot bearing is a needle roller type bearing pressed into the rear of the crankshaft, greased at the factory and requiring no additional lubrication, primarily supporting the front of the transmission input shaft. It should be inspected whenever the clutch components are removed from the engine, and if there are any doubts about its condition due to inaccessibility, it is advisable to replace it. To begin, remove the transmission and the clutch components. Using a flashlight, inspect the bearing for excessive wear, scoring, dryness, roughness, or any obvious damage, and replace it if any issues are found. Removal can be done with a special puller or an alternative method involving a solid steel bar, wood dowel, or a bolt through a socket. Ensure the bar fits snugly into the bearing, then pack the bearing and the area behind it with heavy grease to eliminate air. Insert the bar into the bearing bore and strike it sharply with a hammer to force the grease behind the bearing, pushing it out. Alternatively, pack the recess behind the bearing with heavy grease and use a steel rod to hydraulically force it out. After removing the bearing, clean all grease from the crankshaft recess. For installation, lightly lubricate the outside surface of the new bearing with grease and drive it into the recess with a seal installer or socket, ensuring the bearing seal faces out. Finally, reinstall the clutch components, transmission, and all previously removed components, tightening all fasteners to the recommended torque.

The crankshaft has a clutch pilot bearing that is a needle roller bearing that is pressed directly into the back piece of the crankshaft; it comes pre greased from the factory and does not need any additional grease being added. Its main duty is to bear part of front of the transmission input shaft, and ideally, it should be checked whenever the cardinal clutch parts are detached from the engine. Due to the hard-to-reach location, it is recommended to replace it if there are questions about its state. Where the engine has been spat out from the car, then some of these steps may not be followed. For the bearing, turn on the flashlight and look for excessive wear, scoring, dryness, roughness or any traces of damage; if such incidences are observed, then the bearing should be replaced. Removal can be done with a special puller, for example, a small slide-hammer puller which can be purchased in any auto parts store. For fitting or installation of bearing, remove a thin film of grease on the outer surface of the new bearing and then force it into the recess using the seal installer or a socket preferably with the bearing seal facing outwards. Last, replace the clutch components, shift, the transmission and all parts that have been separated, making sure that the screws are tightened to the right tension.

The pilot bearing should be inspected whenever the clutch components are removed from the engine. If there is any doubt about its condition, it should be replaced with a new one due to its inaccessibility.

Removal can be accomplished with a special puller, such as a small slide-hammer puller, which is available at most auto parts stores. An alternative method also works very well.