1.6.3 Cylinder Liner
DETROIT DIESEL 53
A cracked or excessively scored liner must be
discarded. A slightly scored liner may be cleaned-up
and re-used.
Install the liner in the cylinder block and measure the
inside diameter of the liner at the various points shown
in Fig. 3. If the taper exceeds .002" or the out of-round
exceeds .003", replace the liner. To check these
dimensions, use dial bore gage J 5347 (Fig. 4) which
has a dial indicator calibrated in .0001" increments. Set
the gage on zero with master ring J 8385.
NOTE: Dial bore gage master setting
fixture J 23059 may be used in place of
master ring J 8385.
Home Used Cylinder Liner
If the taper or out-of-round do not exceed the limits,
hone the liner to remove any step or ridge at the top of
the ring travel and to remove the glaze caused by the
rubbing action of the piston rings.
Fig. 3. - Cylinder Liner Measurement Diagram
d.
Remove the cylinder liner seal ring from
the groove in the cylinder block bore.
If tool J 22490 is unavailable, tap the liner out with a
hardwood block and hammer.
CAUTION: To avoid damage to the
top land of the piston, do not at any
time try to loosen the cylinder liner
by inserting a long bolt or rod
through the port openings in the
cylinder liner and turning the
crankshaft, thus pushing the liner up
with the piston.
Inspect Used Cylinder Liner
When the cylinder liner is removed from the cylinder
block, it must be thoroughly cleaned and then checked
for:
Cracks
Scoring
Poor contact on outer surface
Flange irregularities
Inside diameter
Fig. 4. - Checking Bore of Cylinder Liner
Out-of-roundness
Taper
1970 General Motors Corp.
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