Base q November 2006 Print 603.93.641 20 F2B ENGINE TRAKKER EURO 4/5 Type F2B mm Bushing housing in rocker arms 41.000 to 41.016 53.000 to 53.019 42.000 to 42.016 Bushing outer diameter for rocker arms: 41.097 to 41.135 53.105 to 53.156 42.066 to 42.091 Bushing inner diameter for rocker arms: 38.025 to 38.041 50.025 to 50.041 38.015 to 38.071 Between bushings and housings 0.081 to 0.135 0.086 to 0.156 0.050 to 0.091 Between rocker arms and shaft 0.025 to 0.057 0.015 to 0.087 Engine brake control lever Eccentric pin outer diameter 2 Rocker arms shaft seat 1 49.984 50.000 38.025 38.041