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 TM 55-1905-223-24-5
(6) Check the insert in the cam follower lever for wear or damage.
(a) Use a new push rod ball or a 0.625 inch (15.88 mm) checking ball to check the insert.
(b) Apply a Prussian blue compound to the ball. Put the ball into the insert in the lever and
rotate the ball 180 degrees.
(c) Replace the insert if it is damaged or has less than 80 percent contact with the ball.
(7) Remove the roll pins, roller pins, and rollers from the cam levers.
(8) Inspect the rollers.
(a) Use a small bore gauge to measure the inside diameter of the rollers.
(b) Check the rollers to be sure they are not out-of-round. See Table 4-7 for the dimensions of
the rollers.
(c) Use micrometer to measure the outside diameter at the roller.
(d) The outside diameter of the roller must have a common center within 0.002 inch (0.05 mm).
(9) Use micrometer to measure the outside diameter of the roller pins. See Table 4-7 for dimensions of
the roller pins.
(10) Measure the roller pin bore in the cam follower lever. See Table 4-7 for dimensions.
(11) If the rollers are damaged, be sure to inspect the camshaft for damage. Replace any part that is
damaged or worn beyond the limits in Table 4-7.
(12) Replace the cam followers if they have any damage or cracks.
(13) Replace the cam followers if they are worn beyond the limit.
(14) Inspect the push rods.
(a) Clean the push rods with cleaning solvent.
(b) Inspect for engine oil in the push rods as follows:
(c) Inspect the straightness of the push rod by rolling it on a level surface. Replace the push rod
if it is bent. Do not use a bent push rod.
(d) Visually inspect the ball and the socket ends of the push rods for uneven wear or scratches.
(e) Visually inspect the push rod ball end for excessive wear.
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