138 F3B ENGINE T RAKKER E URO 4/5 Base q November 2006 Print 603.93.641 Type F3B CYLINDER HEAD - TIMING SYSTEM mm 1 Guide valve seats on cylinder head 1 15.980 to 15.997 2 2 Valve guides 3 3 10.015 to 10.030 16.012 to 16.025 Valve guides and seats on head 0.015 to 0.045 Valve guides _ 4 Valves: 4 4 9.960 to 9.975 60 30 7 30 9.960 to 9.975 45 30 7 30 Valve stem and relevant guide 0.040 to 0.070 Seat on head for valve seat: 1 1 1 49.185 to 49.220 46.985 to 47.020 Outside diameter of valve 2 seats on cylinder head: 2 2 * provided with spare 49.260 to 49.275 47.060 to 47.075 49.460 to 49.475* 47.260 to 47.275* Valve seats 0,2 X Recessing X X 0.45 to 0.75 1.65 to 1.95