DETROIT DIESEL 53
Cylinder Liner 1.6.3
Fig. 6 Cylinder Liner Ridge Due to Wear
Fretting is the result of a slight movement of the liner in the block bore during engine operation, which causes material
from the block to adhere to the liner. These metal particles may be removed from the surface of the liner with a coarse,
flat stone.
Install the liner in the proper bore of the cylinder block and measure the inside diameter at the various points shown in
Fig. 3. Use cylinder bore gage J 5347 (Fig. 4), which has a dial indicator calibrated in .0001 " increments, as it is rather
difficult to obtain accurate measurements with a micrometer. Set the cylinder bore gage on zero in master ring gage J
8385. Also check the liner for taper and out-of-round.
NOTE: Dial bore gage master setting fixture J 23059 may be used in place of the
master ring gage.
To reuse the liner, the taper must not exceed .002 "and the out-of-round must not exceed .003". In addition, the ridge
formed at the top of the ring travel must be removed. If the out-of-round exceeds .003 " rotate the liner 90in the block
bore and recheck.
Hone Used Cylinder Liner
A used cylinder liner must be honed for the following reasons:
1. To break the glaze (Fig. 5) which results after long periods of operation.
2. To remove the ridge (Fig. 6) formed at the top by the piston ring travel.
When a liner has been in service for a long period, the bore becomes very smooth or glazed due to the rubbing action of
the piston rings. Unless this glaze is removed, the time required to seat new piston rings will be lengthened.
The ridge formed at the top of the liner by the travel of the piston rings must also be removed. Otherwise, interference
with the travel of the new compression rings may result in ring breakage.
Therefore, even though the taper and out-of-round are within the specified limits, the glaze and ridge must be removed
by working a hone up and down the full length of the liner a few times.
Whenever a liner is honed, it should be placed in a fixture (a scrap cylinder block makes an excellent honing fixture).
However, if it is necessary to hone a liner in the cylinder block that is to be used in building up the engine, the engine
must be dismantled and then, after honing, the cylinder block and other parts must be thoroughly cleaned to ensure that
all abrasive material is removed.
The hone J 5902-01, equipped with 120 grit stones J 5902-14, should be worked up and down, at a speed of 300-400
rpm, the full length of the liner a few times in a criss-cross pattern that produces hone marks on a 45 axis. This
operation may be performed with emery cloth if a hone is not available.
After the liner has been honed, remove it from the fixture and clean it thoroughly. Then dry it with compressed air and
check the entire surface for burrs. After honing, the liner must conform to the same limits on taper and out-of-round as a
new liner and the piston-to-liner clearance must be within the specified limits (Section 1.0).
Inspect New Cylinder Liner
Both the former and current liners can be intermixed In-line
engines.
Install the cylinder liner in the block and measure the inside diameter at the various' points shown in Fig. 3. Use dial bore
gage J 5347 and 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 the
master ring gage.
A new cylinder liner is 3.8752" to 3.8767" on the inside diameter and should be straight from top to bottom within .001"
and round within .002" total indicator reading when the liner is in place in the
November, 1973
SEC. 1.6.3 Page 3
