TM 9-2320-363-34-1
ROCKER ARM ASSEMBLIES REPLACEMENT (CONT)
2.
3.
4.
5.
6.
INSPECT ROCKER ARM BUSHINGS (2) FOR EXCESSIVE WEAR OR SCORING. MEASURE
ROCKER ARM BUSHING (2) INSIDE DIAMETER. IF DIAMETER IS MORE THAN 1,4191 IN.
(36.050 mm), REPLACE ROCKER ARM ASSEMBLY.
CHECK CAM FOLLOWER ROLLERS (3) FOR SCORING, PITTING, OR FLAT SPOTS. IF ANY OF
THESE CONDITIONS ARE EVIDENT, REPLACE ROCKER ARM ASSEMBLY (4).
CHECK SIDE CLEARANCE BETWEEN ROLLER AND ROCKER ARM. IF MORE THAN 0.03 IN. (0.08
mm) MAXIMUM, REPLACE ROCKER ARM ASSEMBLY (4).
MAKE SURE CAM FOLLOWER ROLLER (3) TURNS FREELY ON ITS PIN. REPLACE ROCKER ARM
ASSEMBLY (4) IF ROLLER DOES NOT TURN FREELY OR BINDS, OR IF THERE IS VERTICAL
MOVEMENT BETWEEN ROLLER AND PIN.
CHECK ROCKER SHAFT ARM STUD FOR TIGHTNESS WHENEVER ROCKER ARM SHAFT IS
LOOSENED OR REMOVED. MAKE SURE ROCKER SHAFT STUDS ARE TIGHTENED TO 75-86
LB-FT (101-116 N.m).
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