F3B ENGINE 193 T RAKKER E URO 4/5 Figure 111 MAIN DATA OF THE PISTON, PISTON RINGS AND PIN F Dimension detected on 130 mm . - J measured at 2.5 mm from outer 114973 0,1 * Old part number - ** New part number - X = 0,8 540842 Piston rings Figure 114 Figure 112 3513 The seal (2) of the 1st slot has a V shape. The clearance y X y between the seal and its seat is measured by setting the piston (1) with the ring in the cylinder liner (3) so that the seal comes half out of the cylinder liner. 16552 Check the thickness of the piston ring (2) with a micrometer (1).
Figure 115 Figure 113 Using a feeler gauge (2), check the opening between the ends of the seals (1) inserted in the cylinder liner (3). Ifyou find thedistance between the ends is less than or greater than as required, replace the piston rings. 36134 60610 Check the clearance between the seals (2) and their seats on the piston (1) with a feeler gauge (3). Print 603.93.641 Base q November2006