Installation. - TM-55-1930-208-240278

TM 55-1930-208-24

NOTE

The numbers on the side of the connecting rod and cap identify the rod with the cap and indicate the

particular cylinder in which they are used. If a new service connecting rod is to be installed, the same

identification numbers must be stamped in the same location as on the connecting rod that was replaced.

(7) Push piston and connecting rod assembly down into liner until piston is free of the ring compressor.

NOTE

Do not force piston into liner. The peripheral abutment type expanders apply considerably more force on

the oil ring than the standard expander. Therefore, extra care must be taken during loading operation to

prevent ring breakage.

(8) If any of the pistons and liners are already in the engine, use hold-down clamps to retain liners in place when

crankshaft is rotated.

(9) Rotate crankshaft until the connecting rod journal of the particular cylinder being worked on is at the bottom of its

travel. Wipe journal clean and lubricate with clean engine oil (item 8. Appendix C).

(10) Install upper bearing shell, the one with a short oil groove at each parting line, in connecting rod. Lubricate bearing

shell with clean engine oil (item 8, Appendix C).

(11)

Place lower bearing shell, the one with the continuous oil groove from one parting line to the other, in the

connecting rod cap, with the tang on bearing shell in the notch in the connecting rod bearing cap. Lubricate bearing

shell with clean engine oil.

NOTE

Be sure connecting rod bolt has not turned in the connecting rod before torque is applied to the nut.

(12) Install bearing cap (2, figure 4-22) and bearing shell on connecting rod with the identification numbers on cap and

the rod adjacent to each other. Tighten connecting rod bolt nuts to 60-70lb-ft (81-95 Nm) torque (lubrite nut) or

65-75 lb-ft (88-102 Nm) torque (castellated nut).

NOTE

The current connecting rod bolt is .200 inch longer than the former bolt. After the oil pump piping is

installed, bar the engine over for a clearance check. In the event interference occurs, loosen the pipe or

item involved and retighten it while holding it away from the point of interference.

4-45