So the 947 has a bendix bearing mounted into the engine case. First I was hopeful I could change the bendix with the engine in place. To my surprise the flywheel jumped off the shaft with nary a hitch. I found loose bolts holding the bendix into position. I pulled the bendix which didn't look bad. Then I noticed it.... bearing was destroyed. Had to pull the engine and do some machinist type stuff. LOL Ick !!! One thing that is gonna happen in any 947/951 I work on.. that bearing is gonna get inspected and greased.