3-34. ENGINE BLOCK REPAIR (Contd)
c. Inspection and Repair (Contd)
26. Cylinder liner counterbore
Inspect for the following:
of engine block (14)
a. Check for dirty or rough edges.
Remove trapped dirt and clean
b. Check inside diameter and
Counterbore diameter must be
depth at four equally spaced
measured in liner press fit area
positions. Refer to Appendix F for
0.100 in. (2.54 mm) maximum
below deck. Repair and shim
cylinder liner counterbore if the
following conditions are not met.
Refer to step 27 for counterbore
a. Difference in measurement
around circumference must not
exceed 0.001 in. (0.0254 mm).
b. Ledge must be parallel with top
of engine block (14) to within
0.0014 in. (0.0356 mm).
When checking cylinder liner protrusion, ensure shim(s) and cylinder sleeve correspond to
cylinder being inspected as tagged during removal.
c. Check cylinder sleeve (2)
Installing cylinder sleeve (2)
protrusion. Measure depth of
is not necessary. Cylinder sleeve
cylinder sleeve counterbore of
shims (31), (32), (33), (34), (35), and
engine block (14) and outside
(36) are available in the following
flange of cylinder sleeve (2) for
thicknesses: 0.007, 0.008, 0.009,
corresponding cylinder. Subtract
0.020, 0.031, and 0.062 in.
difference to determine amount
of shims and/or depth of counter-
Cylinder head surface of engine block must be flat and without damage or distortion. Use a
straightedge and a 0.002-in. feeler gauge to check cylinder head surface.