Here's some tips for rebuilding your EA82 optical distributor. I've had the optical pickup crap out causing bucking while accelerating before. Not fun when your far from home. And embarrassing cause you look like a stick shift NOOB. First remove 2 screws & dust cover for optical pickup. Then remove center screw. Remove upper retainer then disc being careful not to bend it. Remove locating tabbed disc & spring washer with "D" hole in it.  "T" shaped optical disc r