HARRIER SERVICE MANUAL PART -1

KRYOTEC ENGINE 44 9. Another method of identifying the class of the pins is to read the reference (3). In the case of the number 94 (the first on the left) corresponds to the dimensional value of 52.994 of the first journal that identifies the Class A (red color). The same method should be applied to other groups of two figures (97 - 95 - 95 - 94). NOTE A new crankshaft is provided without bearing shells but is identified with journal and connecting rod dimensional class values in order to choose the bearing shells to assemble with “normal” journal and connecting rod bearing clearances. For the selection of main journal bearing shells the numeric code is printed on the crankshaft adjacent to the pins. Use only the codes related to the legend, all other codes present on the tone wheel must not be used. 10.Check bearing shell dimension are in specified limits. 11. Check journal bearing out of round diameter. 12.Check the thrust washer thickness. 13.Record the readings in the format given at the end of this group. 14.If necessary, grind crank shaft main bearing and crank pin journals to next under-size. 15.Maintain correct fillet radius for journals 16.Care must be taken during grinding to ensure that width of journals is not increased. 17.Should it be necessary to grind sides of 4th main bearing journal, grind it to next undersize. 18.Re-chamfer oil holes on journals to avoid scoring of new bearing shells. 19.Finish journals by lapping them with 320 grit lapping cloth of suitable width. 20.After grinding recheck main bearing and crank pin journal dimensions. 21.Also recheck run out of crank shaft and end play