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TM 5-4210-220-34
3-8.
ENGINE - Continued
3-8.9
Piston, Liner, Rings, Rod and Rod Bearings - Continued
c.
Piston/Sleeve Installation
Inspect the ring compressor for nicks or burrs at the non-tapered inside diameter end. Nicks or burrs on
the inside diameter of the compressor will result in damage to the piston rings.
(1) Place ring compressor J24227 on a wooden block with the tapered end of compressor facing up.
(2) Start top of piston straight into the ring compressor. Push piston down until it contacts wooden block.
(3) Place liner of matching set with flange end down on wooden block.
(4) Place ring compressor, piston and rod assembly on liner.
(5) Push piston and connecting rod assembly down into liner until the piston is free of the ring compressor.
NOTE
Do not force piston into the liner. Care must be taken during loading operation to prevent ring breakage.
(6) Remove ring compressor and connecting rod cap, then push piston down until the compression rings pass
the cylinder liner air ports. Be sure the cap bolts remain in the rod.
(7) If a new connecting rod is installed, stamp same identification number on replacement rod that was on
original.
(8) Be sure the seal ring grooves in cylinder block bore are clean. Install new seal ring in each groove.
(9) Apply vegetable shortening oil (item 32, Appendix B) or antifreeze (item 2, Appendix B) to the inner surface of
each seal ring (black rings only).
(10) Apply engine oil (item 17, Appendix B) to teflon coated seals (yellow-gold or green color) as a lubricant when
installing cylinder liners.
(11) Rotate crankshaft until connecting rod journal of the cylinder being worked on is at the bottom of its travel.
Wipe journal clean and lubricate with engine oil (item 17, Appendix B).
(12) Install upper bearing shell into connecting rod.
NOTE
Upper bearing shell is one without continuous oil groove.
3-172
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