Why would I wash out perfectly good grease? If dirt is on the inside bearing goes in garbage. Clutch bearings never get taken apart or relubed, straight to garbage can.

Clutch bearings failing can put a ton of shock load on the case of you engine when they sieze and grab. Keep in mind that engine blocks are just cheap cast pot metal.

I repack the other bearings with axle grease. Then I coat the outside of the bearing with Brake Pin Lube that'll seal them up water tight.