TM 5-3895-346-14
ENGINE OVERHAUL
CYLINDER LINER
Install Cylinder Liner, Piston, and Connecting Rod Assembly
After the piston and connecting rod assembly have been installed in the cylinder liner, install the entire
assembly in the engine as follows:
1.
Make sure the seal ring grooves in the cylinder block bore are clean. Then install a new seal
ring(s).
NOTE
The current cylinder block has an additional seal ring groove approximately 1/8
inch below the original top groove (Fig. 9). This groove will permit further use of
the cylinder block where corrosion or erosion of the upper seal ring groove has
occurred. The lower seal ring groove in the current cylinder block has been
eliminated. Reinstallation of the lower seal ring is not necessary in the former
cylinder block.
2.
Apply hydrogenated, vegetable- type shortening or permanent-type antifreeze to the inner surface
of the seal ring.
3.
If any of the pistons and liners are already in the engine, use holddown clamps to retain the liners
in place when the crankshaft is rotated.
4.
Rotate the crankshaft until the connecting rod journal of the particular cylinder being worked on is
at the bottom of its travel. Wipe the journal clean and lubricate it with clean engine oil.
5.
Install the upper bearing shell (the one with a short oil groove at each parting line) in the connecting
rod. Lubricate the bearing shell with clean engine oil.
6.
Position the piston, rod, and liner assembly in line with the block bore (Fig. 10) so that the
identification number on the rod is facing the engine serial number side (in-line engine). Also align
the matchmarks on the liner and the block. Then slide the entire assembly into the block bore and
seal ring, being careful not to damage the seal ring.
7.
Push or pull the piston and connecting rod into the
liner until the upper bearing shell is firmly seated on
the crankshaft journal.
Figure 8. Installing Piston and
Connecting Rod Assembly in Ring
Compressor and Cylinder Liner
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