190 F3B ENGINE T RAKKER E URO 4/5 Figure 99 Figure 100 Set two journals of the crankshaft (2) parallel to the longitudinal axis, a section of calibrated wire . Using appropriate hooks and tackle, mount the lower crankcase (1). 60559 - Lubricate the internal screws (1) with UTDM oil and tighten them with a torque wrench (3) to a torque of 120 Nm, using tool 99395216 (4), to an angle of 60 , following the diagram of Figure 101. 47578 Figure 101 FRONT SIDE DIAGRAM OF SEQUENCE FOR TIGHTENING THE SCREWS FIXING THE BOTTOM CRANKCASE TO THE CRANKCASE 60593 Figure 102 Checking crankshaft end float Figure 103 - Remove the lower crankcase.
The clearance between the main bearings and their journals ismeasuredby comparingthewidth taken on by thecalibrated wire (2) at the point of greatest crushing with the graduated scale on the case (1) containing the calibrated wire. The numbers on the scale give the clearance of the coupling in millimetres. If you find the clearance is not as re quired, replace the bearing shells and repeat the check. 47579 The end float is checked by setting a dial gauge (1) 99395603 with a magnetic base on the crankshaft (2) as shown in the figure. If you find the clearance to be greater than as required, replace the rear main bearing shells carrying the thrust bearings and repeat the clearance check.
47588 Base q November2006 Print 603.93.641