Piston & Connecting Rod

Fig. 12 Piston & Connecting Rod Assembly:

Fig. 13 Oil Ring Installation:

Fig. 14 Compression Ring Installation:

1. Align oil hole in large end of connecting rod opposite the F mark on piston, Fig. 12.
2. Press piston pin into piston using tools 49G030042, 49G030043 and 49G030041 or equivalents. Insert the piston pin from the direction of the F mark on the piston. The piston pin should be pressed in, until lower portion of guide (tool 49G030043) meets bottom of block (tool 49G030041). Do not exceed 3300 lbs. when pressing pin into piston. If a force greater than 3300 lbs. is required, replace piston pin or connecting rod. After pressing pin into piston, hold piston head and raise crankshaft end of connecting rod until rod contacts piston. With connecting rod contacting piston, release crankshaft end of connecting rod. If connecting rod does not drop by its own weight, replace piston and connecting rod assembly. Repeat this procedure for all piston and connecting rod assemblies.
3. Install oil ring spacer, then the upper and lower side rails onto piston, Fig. 13.
4. Install compression rings (lower ring first), ensuring R marks face upward. Position rings as shown in Fig. 14.
5. Apply clean engine oil to piston, rings and cylinder walls, then install piston and connecting rod assemblies into cylinder block. The F mark on piston must face front of engine.