3.2. 10. Piston pin 1) Wear Measure the amount of wear on the piston pin at the points as shown. If the measured values are beyond the limit (0.005 mm or greater), replace the pin. EA0M4031 2) Clearance Measure the clearance between the piston pin and connecting rod bush- ing, and replace either of them, whichever damaged more, if the measured value is beyond the limit. 3) Condition check Check the engaged condition of the EA3M2047 piston and piston pin. If it is possible to force the pin into the piston heated with piston heater, the piston is normal. When replacing the piston, be sure to replace the piston pin together. 3.2. 11.
Connecting rod 1) Distorsion Check the connecting rod for distortion. As shown in the figure below, install the connecting rod to the connecting rod tester, and check for distortion using a feeler gauge. If the connecting rod is found distorted, never re-use it but replace with a new one. 2) Holes alignment (parallelism) Measure the alignment of the con- necting rod small bushing hole with connecting rod big end hole. At this time also, use both connecting rod tester and feeler gauge. 간극 게이지 feeler gauge EA0M4034 - 74 - INSPECTION AND MEASUREMENT Standard Limit N44.995 ~ N45.0 mm N44.990 mm or less Limit 0.011 mm Standard Limit 0.05 mm 0.1 mm or less