650 visiteThe opposite ball bearing ... same rust a nd dirty
649 visitePinion is ok now !
645 visiteAfter some googling, I found an old article that stated the screw are fixed with some Loctyte . To unscrew them it's necessary to heat and try ! wow !! It work !
644 visiteBall bearing retainer viewed from outside
643 visiteThe extracted rusty and old screw ! Will be replaced ...