F3B ENGINE 203 T RAKKER E URO 4/5 PRINT603.93. 641/A 5412 TIMING GEAR Print 603.93.641/A Base q November 2006 Revi - June 2007 Camshaft drive Figure 144 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 Idler gear pin 541252 Idler gear Figure 145 108840 541253 Twin intermediate gear pin 541252 Twin idler gear Figure 146 86934 541254 Replacing the bushings Bushings (2, Figure 143), can be replaced when they are worn.
Put up the bushing, then bore it to obtain the diameter shown on Figure 145 or .Figure 146 NOTE The bushing must be driven into the gear by following the direction of the arrow and setting the latter to the dimension shown on Figure 145 or .Figure 146 Rated assembling play between gear bushings and pins: Figure 145 q 0.045 0.085 mm Figure 146 q 0.045 0.085 mm.