Wash the bearing and connecting rod caps. Dry with compressed air. Visually inspect the connecting rod caps, connecting rod bearing saddles, and capscrews for nicks, cracks, burrs, scratches, or fretting. Visually inspect the bearings for damage. Replace any bearings with the following damage: Pitting Flaking Corrosion Lock tang damage Scratches Visually inspect the bearing shell… Read More »
Drain the lubricating oil. Remove the lubricating oil pan. Rotate the crankshaft to position two of the connecting rods at “ BDC” (Bottom Dead Center). Remove the lower bearing shell from the connecting rod cap and mark it with the letter L (lower) and the-cylinder number it was removed from. Push the connecting rod away… Read More »
Install the pistons on the connecting rods. Refer to Procedure (7-10). Install the pistons and connecting rod assemblies. Install lubricating oil pan. Install the cylinder head. Refer to Procedure (7-07). Fill the lubricating oil pan. Fill the cooling system. Operate the engine to normal operating temperature and check for leaks.
Warning: When using a steam cleaner, wear protective clothing and safety glasses or a face shield. Hot steam can cause serious personal injury. Use a nylon bristle brush to clean the oil drillings. Use steam or solvent to clean the connecting rods. Dry with compressed air. Inspect the connecting rods and connecting rod caps for… Read More »
Drain the coolant. Remove the cylinder head. Refer to Procedure (7-07). Drain the lubricating oil. Remove the lubricating oil pan. Remove the piston and connecting rod assemblies from the engine. Refer to Procedure (7-10). Remove the pistons from the connecting rods. Refer to Procedure (7-10).
Use Cummins Sealant, Part No. 3823494, to fill the joints between the lubricating oil pan rail, gear housing and rear cover. Assemble the lubricating oil pan and capscrews as illustrated. Torque Value: 24 N»m [18 ft-lb] 10 mm Install the cylinder head. Refer to Procedure (7-44). Fill the cooling system. Fill the engine with lubricating… Read More »
Install the bearing shells into both the connecting rod and the connecting rod cap. Make sure the tank on the bearing shells is in the slot of the connecting rod cap and connecting rod. Position the rings. Lubricate the cylinder bore with clean engine lubricating oil. Position the connecting rod journal for the piston to… Read More »
Caution: If a ring expander tool is being used, be careful not to over expand the ring. The top surface of the top and interm ediate rings are identified as illustrated. The oil control ring can be assembled with either side up. Position the oil ring expander in the control ring groove. Install the oil… Read More »
The top ring for a turbocharged engine is not the same as the top ring for a naturally aspirated engine. Position each ring in the cylinder and use a piston to square it with the bore. A = 89 mm [3.5 in]. Use a feeler gauge to measure the gap.