TM 9-2815-202-34
4-33. PISTON AND CONNECTING ROD MAINTENANCE (Cont)
(3) Piston and Connecting Rod Assembly to Cylinder Liner
(a) Apply clean engine oil to piston, rings, and inside surface of piston ring compressor.
NOTE
Inspect ring compressor for nicks or burrs, especially at nontapered inside diameter
end. Nicks or burrs on inside diameter of compressor will result in damage to piston
rings.
(b)
(c)
(d)
(e)
Place piston ring compressor (27) on wood block, with tapered end of ring compressor
facing up.
Stagger piston ring gaps 90° apart on piston. Make sure ends of oil control ring expanders
are not overlapped.
Start top of piston straight into ring compressor (27). Then push piston down until it
contacts wood block.
Place liner (1) with flange end down on
wood block. Note position of
matchmark on liner.
NOTE
Numbers on side of connecting rod and cap identify rod with cap and indicate particular
cylinder in which they are used.
(f)
(g)
Place ring compressor (27) and piston
and connecting rod assembly (28) on
liner (1) with numbers on side of
connecting rod and cap aligned with
matchmark on liner.
Push piston and connecting rod
assembly (28) down into liner (1) until
piston is-free of ring compressor (27).
CAUTION
Do not force piston into liner.
Expanders apply considerable
force on oil rings; therefore,
extra care must be taken during
loading operation to prevent
ring breakage.
(h) Remove connecting rod cap and ring
compressor. Then push piston down
until compression rings pass cylinder
liner ports.
4-142
C h a n g e 1
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