TM 5-3805-262-34INSPECTION/REPAIR (SHEET 1 OF 4)(1) Inspect four studs (20 and 21) located on timing gear cover for cracksand damaged or stripped threads. Repair thread damage by chasing with3/8-16 die. If threads cannot be cleaned up, remove stud using pliers andinstall new stud in timing gear cover.(2) Inspect roller tappets (69 through 75) by rotating roller (73) and check-ing that it turns smoothly without wobble. Check for flat spots, pitting,scratches, or cracks. If any of the above conditions are seen, repairroller tappet:(a)(b)(c)(d)(e)(f)(g)Measure and record height of capscrew (69) above tappet body (75). Thenloosen nut (70), remove capscrew (69) with nut (70), and remove guidepin (71). Replace capscrew (69) if end worn or crushed or if thread dam-age is seen.Press pin (72) from bushing (74) and tappet body (75) using drive pinpunch. Replace pin (72) if bent or grooved.Remove roller (73) with bushing (74) from tappet body (75).Press bushing (74) from roller (73), and remove slight pressure marksand vertical scoring from tappet body (75) using abrasive cloth. Replaceall other damaged or worn parts.Press bushing (74) into roller (73), and position roller (73) in tappetbody (75).Press pin (72) through tappet body (75) into bushing (74).Install guide pin (71), nut (70), and capscrew (69). Turn capscrew (69)to height above tappet body (75) recorded in step (a) above, then tight-en nut (70) to secure.3-149
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