Genuine Mazda MX-5 Miata Pilot Bearing

Mazda MX-5 Miata Pilot Bearing Parts and Q&A

• Pilot Bearing
  YF09-11-303
  Q:

  How to inspect and replace a pilot bearing in a crankshaft on Mazda MX-5 Miata?

  A:

  A pilot bearing pressed into the rear of the crankshaft and fitted inside the flywheel will support the front of the transmission input shaft. The factory has already greased the needle roller bearing so it does not require more grease. Check the needle roller bearing whenever the clutch parts are removed. If the wear is excessive, gauged, without grease and or dry or if there are any obvious damages, change the bearing. With a grip at the rear of the bearing, pull the bearing from the hole in the crankshaft. If necessary, use a slide-hammer fitted with a small tip that has two adjustable hooks, or another tool. You must lightly coat the outer surface of your new bearing with multi-purpose grease then drive it into the recess using a hammer and bearing driver or clutch alignment tool, making sure that the bearing seal faces towards the transmission and that it is flush with the edge of the bearing bore. To conclude, the pilot bearing must be greased with high-temperature grease before the reinstallation of the clutch parts and the transmission.