F2B ENGINE 79 T RAKKER E URO 4/5 PRINT603.93. 641 5412 TIMING GEAR Print 603.93.641 Base q November 2006 Camshaft drive Figure 125 86925 TIMING CONTROL COMPONENT PARTS 1. Camshaft - 2. Bushing - 3. Pin - 4. Articulated rod - 5. Camshaft control gear - 6. Idler gear - 7. Twin idler gear - 8. Drive shaft driving gear. 541253 Intermediate gear pin Figure 126 86926 Rated assembling play between idler gear bushings and pins: 0.040 0.080 mm. 541252 Idler gear Figure 127 86927 541252 Twin idler gear Figure 128 86928 541254 Replacing the bushings Bushings (1, Figures 128 - 129) can be replaced when they are worn.
Put up the bushing, then grind it so as to bring it to a dimension of 58.010 0.10 mm. NOTE Bushings must be forced into gears (2, Figures 128 - 129) by following the direction of the arrow: they must bepositioned at the levelshownin thefigures.