Quantcast 3. INSPECT CRANKSHAFT ASSEMBLY MAIN JOURNALS AND CONNECTING ROD JOURNALS FOR WEAR AND OVALITY.

 
  
 
TM 5-3895-373-34 2.17 DIESEL ENGINE REPAIR. C. INSPECT - Continued. d. Use an inside caliper to measure width of idler gear hub (142) Surface D. e. Idler  gear hub width must be 1.1915 to 1.1945 in. (30,26 to 30,33 mm). f. If idler gear hub width is greater than 1.1945 in. (30,33 mm), replace idler gear hub. 3. INSPECT CRANKSHAFT ASSEMBLY MAIN JOURNALS AND CONNECTING ROD JOURNALS FOR WEAR AND OVALITY. a. Use        an        outside        micrometer    (Item    17, Appendix  D)  to  measure  outside  diameters  of main journal Surfaces E on crankshaft assembly (136). b. Outside  diameters  of  main  journal  Surfaces  E must  be  2.9984  to  2.9992  in.  (76,16  to  76,18 mm),  with  a  maximum  wear/ovality  allowance of 0.0015 in. (0,04 mm). c. If main journal surface outer diameters are less than    2.9984    in.            (76,16    mm)    or    ovality exceeds    0.0015    in.    (0,04    mm),    regrind    or replace crankshaft assembly (136). d. Use    an        outside        micrometer    (Item    17, Appendix  D)  to  measure  outside  diameters  of connecting rod journal Surfaces F on crankshaft assembly (136). e. Outside   diameters   of   connecting   rod   journal Surfaces   F   must   be   2.4988   to   2.4996   in. (63,47     to     63,49     mm),     with     a     maximum wear/ovality    allowance    of    0.0015    in.    (0,04 mm). f. If connecting rod journal surface diameters are less   than   2.4988   in.   (63,49   mm)   or   oyality exceeds    0.0015    in.    (0,04    mm),    regrind    or replace crankshaft assembly (136). GO TO NEXT PAGE 2-174


 


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