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TM 10-3930-659-34
5-2.
CYLINDER LINERS MAINTENANCE (Cont).
7.
Using dial indicator and depth gage micrometer,
measure and note height of cylinder liner (4)
from engine (1). Measurement must be 0.0004-
0.0040 in. (0.0102-0.1016 mm). Repeat step
for
remaining
cylinder
liners.
Differences
between measurements must not exceed 0.002
in. (0.051 mm).
8.
Remove six pistons and connecting rods (see
paragraph 5-3).
9.
Inspect cylinder liners (4) for cracks, scoring,
glazing, discoloration, and abnormal wear. If
damaged,
replace
cylinder
liners
(see
subparagraph c).
NOTE
Perform steps 10 through 16 for all six pistons and cylinder liners.
10.
Insert piston (8) into same cylinder liner (4) as
removed, and ensure that front markings of
piston and cylinder liner are alined. Position
piston so bottom edge is 1 in. (25.4 mm) from
bottom of cylinder liner.
11.
Using feeler gage, measure and note clearance
between piston (8) and cylinder liner (4) at a
point 900 from piston pin bore.
12.
Rotate piston (8) 900 and repeat step 11.
Difference between measurements in steps 11
and 12 is amount cylinder liner (4) is out-of-
round. Maximum allowable out-of-round is 0.002
in. (0.051 mm).
5-15
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